GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to1.5Vdc output; 120A Output Current
Features
▪
Compliant to RoHS Directive 2011/65/EU and amended
Directive (EU) 2015/863
RoHS Compliant
Applications
▪
Compliant to IPC-9592 (September 2008), Category 2
▪
Compatible in a Pb-free or SnPb reflow environment (Z
versions)
▪
Compliant to REACH Directive (EC) No 1907/2006
▪
Wide Input voltage range (7Vdc-14 Vdc)
▪
Output voltage programmable from 0.6Vdc to 1.5Vdc via
external resistor or PMBusTM # commands
▪
Digital interface through the PMBus protocol
▪
Digital sequencing
▪
Fast digital loop control
▪
Power Good signal
▪
Fixed switching frequency with capability of external
synchronization
▪
Output overcurrent protection (non-latching)
▪
Output overvoltage protection
▪
Networking equipment
▪
Telecommunications equipment
▪
Servers and storage applications
▪
Over temperature protection
▪
Distributed power architectures
▪
Remote On/Off
▪
Intermediate bus voltage applications
▪
Ability to sink and source current
▪
Industrial equipment
▪
Cost efficient open frame design
▪
Small size: 53.8 x 31.7 x 13.3 mm [ 2.118” x 1.248” x
0.524”]
▪
Wide operating temperature range [-40°C to 85°C]
▪
ANSI/UL* 62368-1 and CAN/CSA† C22.2 No. 62368-1
Recognized, DIN VDE‡ 0868-1/A11:2017 (EN623681:2014/A11:2017)
▪
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Description
The 120A Digital TeraDLynxTM power modules are non-isolated dc-dc converters that can deliver up to 120A of output current. These
modules operate over a 7 to 14Vdc input range and provide a precisely regulated output voltage from 0.6 to 1.5Vdc. The output
voltage is programmable via an external resistor and/or PMBus control. Features include a digital interface using the PMBus protocol,
remote On/Off, adjustable output voltage, Power Good signal and overcurrent, overvoltage and overtemperature protection. The
PMBus interface supports a range of commands to both control and monitor the module. The module also includes a real time
compensation loop that allows optimizing the dynamic response of the converter to match the load with reduced amount of output
capacitance leading to savings on cost and PWB area.
* UL is a registered trademark of Underwriters Laboratories, Inc.
†
CSA is a registered trademark of Canadian Standards Association.
VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
‡
#
The PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF)
August 24, 2020
©2017 General Electric Company. All rights reserved.
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are only absolute stress ratings,
functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of
the technical requirements. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter
Device
Symbol
Min
Max
Unit
Input Voltage - Continuous
All
VIN
-0.3
15
V
SEQ, ADDR0, ADDR1, RTUNE, RTRIM, SYNC, VS+, ON/OFF
All
-0.3
3.6
V
CLK, DATA, SMBALERT#
All
-0.3
3.6
V
Operating Ambient Temperature
All
TA
-40
85
°C
All
Tstg
-55
125
°C
(see Thermal Considerations section)
Storage Temperature
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
7
⎯
14
Vdc
29
Adc
Operating Input Voltage
All
VIN
Maximum Input Current
All
IIN,max
VO,set = 0.6 Vdc
IIN,No load
160
mA
(VIN=7V to 14V, IO=IO, max )
Input No Load Current
(VIN = 12Vdc, IO = 0, module enabled)
VO,set = 1.5Vdc
IIN1No load
200
mA
Input Stand-by Current
(VIN = 12Vdc, module disabled)
All
IIN,stand-by
62
mA
Inrush Transient
All
I2t
1
A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN =0 to 14V, IO=
IOmax ; See Test Configurations)
All
5
mAp-p
Input Ripple Rejection (120Hz)
All
-54
dB
Output Voltage Set-point Tolerance over output voltage
range from 0.5 to 1.5V
0 to 85ºC
All
VO, set
-0.7
+0.7
% VO, set
-40 to 85ºC
All
VO, set
-1.0
+1.0
% VO, set
Voltage
Regulation1
Line Regulation
Load (IO=IO, min to IO, max) Regulation
1 Worst
(VIN=VIN, min to VIN, max)
2
mV
(12VIN±20%)
1
mV
All
4
mV
case Line and load regulation data, all temperatures, from design verification testing as per IPC9592.
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 2
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Adjustment Range (selected by an external resistor)
All
VOUT
PMBus Adjustable Output Voltage Range
All
VOUT
PMBus Output Voltage Adjustment Step Size
All
Remote Sense Range
All
Typ
Max
Unit
0.6
1.5
Vdc
0.6
1.5
Vdc
612
µV
0.3
Vdc
30
mVpk-pk
12
mVrms
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max Co = 1500 μF
Peak-to-Peak (Full bandwidth)
RMS (Full bandwidth)
All
External Capacitance3
Minimum output capacitance
All
CO,min
1500
⎯
⎯
μF
Maximum output capacitance
All
CO, max
⎯
⎯
40000
μF
Output Current (in either sink or source mode)
All
Io
0.005
*
120
Adc
Output Current Limit Inception (Hiccup Mode)
(current limit does not operate in sink mode)
All
IO, lim
110
% Io,max
Output Short-Circuit Current
All
IO1, s/c , IO1, s/c
40
Arms
(VO≤250mV) (Hiccup Mode)
Efficiency
VO,set = 0.6Vdc
η
88.2
%
VO, set = 0.8Vdc
η
90.9
%
VIN= 12Vdc, TA=25°C
VO,set = 1.0Vdc
η
92.1
%
IO=IO, max , VO= VO,set
VO,set = 1.2Vdc
η
93.0
%
VO, set = 1.5Vdc
η
94.0
%
Switching Frequency
All
fsw
Frequency Synchronization
All
Synchronization Frequency Range
All
High-Level Input Voltage
All
VIH,SYNC
Low-Level Input Voltage
All
VIL,SYNC
Minimum Pulse Width, SYNC
All
tSYNC
-
-15
400
-
kHz
+15
%
2.5
V
1.1
256
V
ns
* Minimum load on module should be 5mA
2 this
must be supported by an appropriate PMBus tool capable of writing at that resolution
3 External
capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as getting the best transient
response. See the Tunable LoopTM section for details.
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 3
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
General Specifications
Parameter
Device
Calculated MTBF (IO=0.8IO, max, TA=40°C) Telecordia Issue 2 Method 1 Case 3
Min
Typ
All
Max
Unit
11,556,226
Hours
57 (2.01)
g (oz.)
59 (2.08)
g (oz.)
Weight - Module with SMT Pins
Module with Through Hole Pins
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter
Device
Symbol
Min
Typ
Max
Unit
All
IIH
―
―
1
mA
All
VIH
2
―
3.6*
Vdc
Input low Current
All
IIL
―
―
10
μA
Input Low Voltage
All
VIL
-0.2
―
0.4
Vdc
Input High Current
All
IIH
―
―
10
µA
Input High Voltage
All
VIH
2
―
3.6*
On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Device Code with no suffix - Negative Logic (See Ordering Information)
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Logic High (Module OFF)
Input High Current
Input High Voltage
Logic Low (Module ON)
Device Code with suffix “4” - Positive Logic (See Ordering Information)
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Logic High (Module ON)
Vdc
Logic Low (Module OFF)
Input low Current
All
IIL
―
―
10
μA
Input Low Voltage
All
VIL
-0.2
―
0.4
Vdc
All
Tdelay
―
30
―
ms
All
Tdelay
―
15
―
ms
All
Trise
―
10
―
msec
3.0
% VO, set
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then input power is
applied (delay from instant at which VIN = VIN, min until Vo =
10% of Vo, set)
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at
which Von/Off is enabled until Vo = 10% of Vo, set)
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot (TA = 25oC
VIN= VIN, min to VIN, max,IO = IO, min to IO, max)
With or without maximum external capacitance
Over Temperature Protection
(See Thermal Considerations section)
PMBus Over Temperature Warning Threshold
Output
All
Tref
135
°C
All
TWARN
125
°C
*Use external resistive voltage divider to step down higher logic voltages
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 4
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Feature Specifications (cont.)
Parameter
Tracking Accuracy
(Power-Up: 0.5V/ms)
(Power-Down: 0.5V/ms)
Device
Symbol
All
All
Min
Typ
Max
Units
VSEQ –Vo
100
mV
VSEQ –Vo
100
mV
7
Vdc
(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)
Input Undervoltage Lockout
Turn-on Threshold
All
Turn-off Threshold
All
Hysteresis
All
PMBus Adjustable Input Under Voltage Lockout Thresholds
All
Resolution of Adjustable Input Under Voltage Threshold
All
6.75
Vdc
0.25
7
Vdc
14
Vdc
5.8
mV
PGOOD (Power Good) for output voltages set with Rtrim**
Signal Interface Open Drain, Vsupply 5VDC
Overvoltage threshold for PGOOD ON
All
112.5
%VO, set
Undervoltage threshold for PGOOD OFF
All
87.5
%VO, set
Pulldown resistance of PGOOD pin
All
2
Sink current capability into PGOOD pin
All
50
mA
**If output voltage is set using VOUT COMMAND(21h) then PGOOD ON and PGOOD OFF thresholds should be manually
set through PMBus commands 5E and 5F
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 5
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Digital Interface Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter
Conditions
Symbol
Min
Typ
Max
Unit
Input High Voltage (CLK, DATA)
VIH
2.1
Input Low Voltage (CLK, DATA)
VIL
1.1
V
Input high level current (CLK, DATA)
IIH
0.5
μA
Input low level current (CLK, DATA)
IIL
4
mA
0.25
V
5
55
nA
10
pF
10
1000
kHz
PMBus Signal Interface Characteristics
Output Low Voltage (CLK, DATA, SMBALERT#)
IOUT=4mA
VOL
Output high level open drain leakage current (DATA,
SMBALERT#)
VOUT=3.6V
IOH
Slave Mode
FPMB
Pin capacitance
PMBus Operating frequency range
V
CO
Data hold time
tHD:DAT
0
ns
Data setup time
tSU:DAT
100
ns
Read delay time
tDLY
110
μs
Output current measurement range
IRNG
Output current measurement resolution
IRES
Measurement System Characteristics
Output current measurement accuracy
VOUT measurement range
-40°C to +85°C
0
A
±5
% of
Io,max
2.0
V
250
IACC
VOUT
135
0
mA
VOUT measurement accuracy
VOUT(gain)
±1
% of
Vo,max
VOUT measurement resolution
VOUT(res)
0.61
mV
VIN measurement range
VIN
0
16
V
VIN measurement accuracy
VIN(gain)
±2
%
VIN measurement resolution
VIN(res)
5.8
mV
Temperature measurement range
TMEAS
-25
150
°C
Temperature measurement accuracy
TMEAS(gain)
-8
8
°C
Temperature measurement resolution
TMEAS(res)
August 24, 2020
©2017 General Electric Company. All rights reserved.
0.08
°C
Page 6
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Characteristic Curves
95
140
90
120
OUTPUT CURRENT, Io (A)
EFFICIENCY, (%)
The following figures provide typical characteristics for the 120A Digital TeraDLynxTM at 0.6Vo and 25oC.
85
Vin=7V
Vin=14V
Vin=12V
80
75
100
NC
60
40
70
0
20
40
60
80
100
120
25
OUTPUT CURRENT, IO (A)
85
VO (V) (20mV/div)
INPUT VOLTAGE
VIN (V) (10V/div)
VO (V) (200mV/div)
VON/OFF (V) (5V/div)
VO (V) (200mV/div)
75
OC
Figure 4. Transient Response to Dynamic Load Change from
25% to 75% at 12Vin, Co= 12 x 47µF + 10 x 1000µF, RTUNE =
3.01kΩ.
OUTPUT VOLTAGE
ON/OFFVOLTAGE
OUTPUT VOLTAGE
August 24, 2020
65
TIME, t (200s /div)
TIME, t (10ms/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max).
55
IO (A) (50A/div)
TIME, t (50s/div)
Figure 3. Typical output ripple and noise (CO=12x47µF ceramic +
10x470µF polymer, VIN = 12V, Io = Io,max,).
45
AMBIENT TEMPERATURE, TA
OUTPUT CURRENT,
VO (V) (5mV/div)
35
Figure 2. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT VOLTAGE
Figure 1. Converter Efficiency versus Output Current.
OUTPUT VOLTAGE
0.5m/s
(100LFM)
80
TIME, t (10ms/div)
Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
©2017 General Electric Company. All rights reserved.
Page 7
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 120A TeraDLynxTM at 0.8Vo and 25oC
95
140
1m/s
(200LFM)
120
Vin=7V
85
Vin=12V
OUTPUT CURRENT, Io (A)
EFFICIENCY, (%)
90
Vin=14V
80
NC
80
0.5m/s
(100LFM)
60
40
75
0
20
40
60
80
100
120
25
65
75
85
OUTPUT VOLTAGE
VO (V) (20mV/div)
IO (A) (50A/div)
TIME, t (200s /div)
VIN (V) (10V/div)
VO (V) (200mV/div)
INPUT VOLTAGE
Figure 10. Transient Response to Dynamic Load Change from
25% to 75% at 12Vin, Co= 12 x 47µF + 10 x 1000µF, RTUNE =
3.01kΩ.
OUTPUT VOLTAGE
VON/OFF (V)
VO (V) (200mV/div)
(5V/div)
ON/OFF VOLTAGE
OUTPUT VOLTAGE
55
Figure 8. Derating Output Current versus Ambient Temperature
and Airflow.
TIME, t (50s/div)
Figure 9. Typical output ripple and noise (CO=12x47µF ceramic
+ 10x470µF polymer, VIN = 12V, Io = Io,max,)
TIME, t (10ms/div)
TIME, t (10ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max).
August 24, 2020
45
AMBIENT TEMPERATURE, TA C
OUTPUT CURRENT
VO (V) (5mV/div)
Figure 7. Converter Efficiency versus Output Current.
35
O
OUTPUT CURRENT, IO (A)
OUTPUT VOLTAGE
100
Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
©2017 General Electric Company. All rights reserved.
Page 8
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 120A Digital TeraDLynxTM at 1.0Vo and 25oC.
95
140
1m/s
(200LFM)
120
Vin=7V
OUTPUT CURRENT, Io (A)
EFFICIENCY, (%)
90
Vin=14V
Vin=12V
85
80
100
NC
80
0.5m/s
(100LFM)
60
40
75
0
20
40
60
80
100
120
25
35
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT,
IO (A) (50A/div)
VO (V) (5mV/div)
OUTPUT VOLTAGE
TIME, t (200s /div)
INPUT VOLTAGE
VIN (V) (10V/div)
VO (V) (300mV/div)
VON/OFF (V) (5V/div)
VO (V) (300mV/div)
85
Figure 16. Transient Response to Dynamic Load Change from
25% to 75% at 12Vin, Co= 12 x 47µF + 10 x 1000µF, RTUNE =
3.01kΩ.
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
August 24, 2020
75
AMBIENT TEMPERATURE, TA C
TIME, t (10ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max).
65
Figure 14. Derating Output Current versus Ambient Temperature
and Airflow.
TIME, t (50s/div)
Figure 15. Typical output ripple and noise (CO=12x47µF ceramic
+ 10x470µF polymer, VIN = 12V, Io = Io,max,)
55
O
OUTPUT CURRENT, IO (A)
Figure 13. Converter Efficiency versus Output Current.
45
TIME, t (10ms/div)
Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
©2017 General Electric Company. All rights reserved.
Page 9
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 120A Digital TeraDLynxTM at 1.2Vo and 25oC.
100
140
1m/s
(200LFM)
120
OUTPUT CURRENT, Io (A)
EFFICIENCY, (%)
95
90
Vin=7V
Vin=14V
Vin=12V
85
20
40
60
80
100
120
35
75
85
OUTPUT VOLTAGE
VO (V) (20mV/div)
IO (A) (50A/div)
INPUT VOLTAGE
VIN (V) (10V/div)
VO (V) (300mV/div)
Figure 22. Transient Response to Dynamic Load Change from
25% to 75% at 12Vin, Co= 12 x 47µF + 10 x 1000µF, RTUNE =
3.01kΩ.
OUTPUT VOLTAGE
VON/OFF (V) (5V/div)
VO (V) (300mV/div)
ON/OFF VOLTAGE
65
TIME, t (200s /div)
Figure 21. Typical output ripple and noise (CO=12x47µF ceramic
+ 10x470µF polymer, VIN = 12V, Io = Io,max,)
OUTPUT VOLTAGE
55
Figure 20. Derating Output Current versus Ambient Temperature
and Airflow.
TIME, t (50s/div)
TIME, t (2ms/div)
TIME, t (10ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max).
August 24, 2020
45
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT,
VO (V) (5mV/div)
OUTPUT VOLTAGE
0.5m/s
(100LFM)
60
25
OUTPUT CURRENT, IO (A)
Figure 19. Converter Efficiency versus Output Current.
NC
80
40
80
0
100
Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
©2017 General Electric Company. All rights reserved.
Page 10
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 120A Digital TeraDLynxTM at 1.5Vo and 25oC.
100
140
120
OUTPUT CURRENT, Io (A)
EFFICIENCY, (%)
95
Vin=7V
90
Vin=12V
Vin=14V
85
0
20
40
60
80
100
120
NC
0.5m/s
(100LFM)
60
35
75
85
OUTPUT VOLTAGE
VO (V) (20mV/div)
IO (A) (50A/div)
TIME, t (200s /div)
INPUT VOLTAGE
VIN (V) (5V/div)
OUTPUT VOLTAGE
VO (V) (500mV/div)
VON/OFF (V) (5V/div)
VO (V) (500mV/div)
ON/OFF VOLTAGE
August 24, 2020
65
Figure 28. Transient Response to Dynamic Load Change from
25% to 75% at 12Vin, Co= 12 x 47µF + 10 x 1000µF, RTUNE =
3.01kΩ.
TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max).
55
Figure 26. Derating Output Current versus Ambient Temperature
and Airflow.
TIME, t (50s/div)
Figure 27. Typical output ripple and noise (CO=12x47µF ceramic
+ 10x470µF polymer, VIN = 12V, Io = Io,max,)
45
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT,
VO (V) (5mV/div)
OUTPUT VOLTAGE
80
25
OUTPUT CURRENT, IO (A)
Figure 25. Converter Efficiency versus Output Current.
100
40
80
OUTPUT VOLTAGE
1m/s
(200LFM)
TIME, t (2ms/div)
Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
©2017 General Electric Company. All rights reserved.
Page 11
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
be achieved by using the Tunable LoopTM feature described
later in this data sheet.
Design Considerations
Input Filtering
10
The 120A TeraDLynxTM module should be connected to a
low ac-impedance source. A highly inductive source can
affect the stability of the module. An input capacitance
must be placed directly adjacent to the input pins of the
module, to minimize input ripple voltage and ensure
module stability.
10x470 + 12x47 +12x10 uF
4x470 + 12x47 +12x10 uF
To minimize input voltage ripple, ceramic capacitors are
recommended at the input of the module. Figure 31 shows
the input ripple voltage for various output voltages at 120A
of load current with 4x470 + 12x22 + 12x4.7 µF and 2x470 +
6x22 + 12x4.7 µF input capacitor combinations.
Ripple (mVp-p)
8
6
4
2
25
0
4x470 + 12x22 + 12x4.7 uF
0.5
Ripple (mVp-p)
2x470 + 6x22 + 12x4.7 uF
0.7
0.9
1.1
1.3
1.5
Output Voltage(Volts)
20
Figure 32. Peak to peak output ripple voltage for various
output voltages with external capacitors at the output (120A
load). Input voltage is 12V.
15
Safety Considerations
10
5
0.5
0.7
0.9
1.1
1.3
1.5
Output Voltage(Volts)
Figure 31. Input ripple voltage for various output voltages
with two input capacitor combinations at 120A load. Input
voltage is 12V.
Output Filtering
These modules are designed for low output ripple voltage and
will meet the maximum output ripple specification with
minimum of 12 x 22 µF ceramic capacitors at the output of the
module. However, additional output filtering may be required
by the system designer for a number of reasons. First, there
may be a need to further reduce the output ripple and noise
of the module. Second, the dynamic response characteristics
may need to be customized to a particular load step change.
For safety agency approval the power module must be For
safety agency approval the power module must be installed in
compliance with the spacing and separation requirements of
the end-use safety agency standards, i.e., UL ANSI/UL* 623681 and CAN/CSA+ C22.2 No. 62368-1 Recognized, DIN VDE
0868-1/A11:2017 (EN62368-1:2014/A11:2017)
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV) or ES1, the
input must meet SELV/ES1 requirements. The power module
has extra-low voltage (ELV) outputs when all inputs are ELV.
The input to these units is to be provided with a slow-blow
fuse. When the input voltage is ≤ 8V, the recommendation is
to use two 25A Littelfuse 456 series or equivalent fuses in
parallel. For input voltages > 8V, a single 40A Littelfuse series
456 or equivalent fuse is recommended.
To reduce the output ripple and improve the dynamic
response to a step load change, additional capacitance at the
output can be used. Low ESR polymer and ceramic capacitors
are recommended to improve the dynamic response of the
module. Figure 32 provides output ripple information for
capacitance of ~3574uF (47µF (1210 ceramic) x 12 + 10µF
(0805 ceramic) + 0.1µF (0402) x4 + 1000µF (polymer) x 3) at
various Vo and a full load current of 120A. For stable
operation of the module, limit the capacitance to less than the
maximum output capacitance as specified in the electrical
specification table. Optimal performance of the module can
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 12
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
value of the trim resistor, RTrim for a desired output voltage,
should be selected as shown in Table 1.
The trim resistor is only determined during module
initialization and hence cannot be used for dynamic output
voltage adjustment
Analog Feature Descriptions
Remote On/Off
The TeraDLynx 120A module can be turned ON and OFF either
by using the ON/OFF pin (Analog interface) or through the
PMBus interface (Digital). The module can be configured in a
number of ways through the PMBus interface to react to the
ON/OFF input:
•
•
•
Module ON/OFF can controlled only through the
analog interface (digital interface ON/OFF
commands are ignored)
Module ON/OFF can controlled only through the
PMBus interface (analog interface is ignored)
Module ON/OFF can be controlled by either the
analog or digital interface
The default state of the module (as shipped from the factory)
is to be controlled by the analog interface only. If the digital
interface is to be enabled, or the module is to be controlled
only through the digital interface, this change must be made
through the PMBus. These changes can be made and written
to non-volatile memory on the module so that it is
remembered for subsequent use.
Analog On/Off
TeraDLynxTM
The 120A Digital
power modules feature an
On/Off pin for remote On/Off operation. With the Negative
Logic On/Off option, (see Ordering Information), the module
turns OFF during logic High and ON during logic Low. The
On/Off signal should be always referenced to ground. Leaving
the On/Off pin disconnected will turn the module ON when
input voltage is present. With the positive logic on/off option,
the module turns ON during logic high and OFF during logic
low.
Digital On/Off
Please see the Digital Feature Descriptions section.
Monotonic Start-up and Shutdown
The module has monotonic start-up and shutdown behavior
on the output for any combination of rated input voltage,
output current and operating temperature range.
RTRIM
RTRIM
SIG_GND
Figure 33. Circuit configuration for programming output
voltage using an external resistor.
Table 1
VO, set
(V)
0.600
0.620
0.640
0.660
Rtrim
(Ω)
1090
1140
1180
1230
VO, set
(V)
1.000
1.020
1.040
1.060
Rtrim
(Ω)
2870
3050
3240
3480
VO, set
(V)
1.400
1.420
1.440
1.460
Rtrim
(Ω)
18900
23200
29800
40200
0.680
0.700
0.720
0.740
0.760
0.780
0.800
0.820
0.840
0.860
0.880
0.900
1290
1330
1380
1470
1560
1640
1740
1820
1930
2030
2130
2230
1.080
1.100
1.120
1.140
1.160
1.180
1.200
1.220
1.240
1.260
1.280
1.300
3700
3920
4220
4530
4990
5360
5900
6420
6980
7680
8450
9420
1.480
1.500
60400
115000
0.920
0.940
0.960
0.980
2340
2460
2610
2710
1.320
1.340
1.360
1.380
10400
11700
13500
15800
Startup into Pre-biased Output
The module will start into a pre biased output on output as
long as the pre bias voltage is 0.5V less than the set output
voltage.
Digital Output Voltage Adjustment
Please see the Digital Feature Descriptions section.
Remote Sense
Analog Output Voltage Programming
The output voltage of the module is programmable to any
voltage from 0.6 to 1.5Vdc, as shown in Table 1, by connecting
a resistor between the Trim and SIG_GND pins of the module
as shown in Fig 33.
The power module has a differential Remote Sense feature to
minimize the effects of distribution losses by regulating the
voltage between the sense pins (VS+ and VS-) for the output.
The voltage drop between the sense pins and the VOUT and
GND pins of the module should not exceed 0.3V.
Without an external resistor between the Trim pin and
SIG_GND pins, the output of the module will be 0.1 Vdc. The
Digital Output Voltage Margining
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 13
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Please see the Digital Feature Descriptions section.
Please see the Digital Feature Descriptions section.
Output Voltage Sequencing
Overtemperature Protection
The power module includes a sequencing feature, EZSEQUENCE that enables users to implement various types of
output voltage sequencing in their applications. This is
accomplished via an additional sequencing pin. When not
using the sequencing feature, leave it unconnected.
To provide protection in a fault condition, the unit is equipped
with a thermal shutdown circuit. The unit will shut down if the
overtemperature threshold of 135 °C (typ) is exceeded at the
thermal reference point Tref. Once the unit goes into thermal
shutdown it will then wait to cool before attempting to
restart.
Module
Digital Adjustable Overcurrent Warning/Shutdown
Please see the Digital Feature Descriptions section.
Digital Temperature Status via PMBus
V
SEQ
Please see the Digital Feature Descriptions section.
SEQ
Digitally Adjustable Output Over and Under Voltage
Protection
SIG_GND
Please see the Digital Feature Descriptions section.
SIG_GND
Figure 34. Circuit showing connection of the sequencing
signal to the SEQ pin.
When the sequencing voltage is applied to the SEQ pin, the
output voltage tracks this voltage until the output reaches the
set-point voltage. The final value of the sequencing voltage
must be set higher than the set-point voltage of the module.
The output voltage follows the sequencing voltage on a oneto-one basis. By connecting multiple modules together,
multiple modules can track their output voltages to the
voltage applied on the SEQ pin.
The module’s output can track the SEQ pin signal with slopes
of up to 0.5V/msec during power-up or power-down.
To initiate simultaneous shutdown of the modules, the SEQ
pin voltage is lowered in a controlled manner. The output
voltage of the modules tracks the voltages below their setpoint voltages on a one-to-one basis. A valid input voltage
must be maintained until the tracking and output voltages
reach ground potential.
Digital Sequencing
The module can support digital sequencing by allowing control
of the turn-on delay and rise times as well as turn-off and fall
times,
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout limit,
module operation for the associated output is disabled. The
module will begin to operate at an input voltage above the
undervoltage lockout turn-on threshold.
Digitally Adjustable Input Undervoltage Lockout
Please see the Digital Feature Descriptions section.
Digitally Adjustable Power Good Thresholds
Please see the Digital Feature Descriptions section.
Synchronization
The module switching frequency is capable of being
synchronized to an external signal frequency within a
specified range. Synchronization is done by using the external
signal applied to the SYNC pin of the module as shown in Fig.
35, with the converter being synchronized by the rising edge
of the external signal. The Electrical Specifications table
specifies the requirements of the external SYNC signal. If the
SYNC pin is not used, the module should free run at the
default switching frequency.
MODULE
Digital Output Voltage Margining
Please see the Digital Feature Descriptions section.
SYNC
Overcurrent Protection (OCP)
+
To provide protection in a fault (output overload) condition,
the unit is equipped with internal current-limiting circuitry on
output and can endure current limiting continuously. The
module overcurrent response is non-latching shutdown with
automatic recovery. OCP response time is programmable
through manufacturer specific commands. The unit operates
normally once the output current is brought back into its
specified range.
─
Digital Adjustable Overcurrent Warning
August 24, 2020
SIG_GND
Figure 35. External source connections to synchronize
switching frequency of the module.
Measuring Output Current, Output Voltage and Input
Voltage
Please see the Digital Feature Descriptions section.
©2017 General Electric Company. All rights reserved.
Page 14
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Digital Compensator
The TJT120 module uses digital control to regulate the output
voltage. As with all POL modules, external capacitors are
usually added to the output of the module for two reasons: to
reduce output ripple and noise and to reduce output voltage
deviations from the steady-state value in the presence of
dynamic load current changes. Adding external capacitance
however affects the voltage control loop of the module,
typically causing the loop to slow down with sluggish
response. Larger values of external capacitance could also
cause the module to become unstable.
The TJT120 comes with default compensation values
programmed into the non-volatile memory of the module.
These digital compensation values can be adjusted externally
to optimize transient response and also ensure stability for a
wide range of external capacitance, as well as with different
types of output capacitance. This can be done by two different
methods.
1. By allowing the user to select among several pre-tuned
compensation choices to select the one most suited to the
transient response needs of the load. This selection is
made via a resistor RTune connected between the RTUNE
and SIG_GND pins as shown in Fig. 35. Table 2 shows
various pre-tuned compensation combinations
recommended for various external capacitor
combinations.
2. Using PMBus to change compensation parameters in the
module.
Note that during initial startup of the module, compensation
values that are stored in non-volatile memory are used. If a
resistor RTune is connected to the module, then the
compensation values are changed to ones that correspond to
the value of RTUNE. If RTUNE is open however, no change in
compensation values is made. Finally, if the user chooses to
do so, they can overwrite the compensation values via PMBus
commands.
capacitors. The range of external output capacitance is
from 1470 µF to a maximum value of 17640 µF)
• COMP2: For the most commonly used mix of ceramic and
polymer type capacitors that have higher output
capacitance in a smaller size. The range of output
capacitance is from 2564 µF to a maximum of 30564 uF.
This is the combination of output capacitance and
compensation that can achieve the best transient
response at lowest cost and smallest size. For example,
with the maximum output capacitance of 12 x 47µF
ceramics + 25 x 1000 µF polymer capacitors, and selecting
RTUNE = 5.36kΩ, transient deviation can be as low as 25
mV, for a 50% load step (0 to 85A).
•
COMP3: Suitable for a mix of ceramic and higher ESR
polymers or electrolytic capacitors, with output
capacitance ranging from a minimum of 2204 µF to a
maximum of 30084 µF.
Selecting RTUNE according to Table 2 will ensure stable operation
of the module with sufficient stability margin as well as yield
optimal transient response.
In applications with tight output voltage limits in the presence
of dynamic current loading, additional output capacitance will
be required. Table 3 lists recommended values of RTUNE in order
to meet 2% output voltage deviation limits for some common
output voltages in the presence of an 60A to 120A step change
(50% of full load), with an input voltage of 12V.
Please contact your GE technical representative to obtain more
details of this feature as well as for guidelines on how to select
the right value of external RTUNE to tune the module for best
transient performance and stable operation for other output
capacitance values. Simulation models are also available via the
GE Power Module Wizard to predict stability characteristics and
transient response.
Recommended values of RTUNE for different output capacitor
combinations are given in Table 2. If no RTUNE is used, the
default compensation values are used.
The TJT120 pre-tuned compensation can be divided into three
different banks (COMP1, COMP2, COMP3) that are available
to the user to compensate the control loop for various values
and combinations of output capacitance and to obtain reliable
and stable performance under different conditions. Each bank
consists of 20 different sets of compensation coefficients precalculated for different values of output capacitance. The
three banks are set up as follows:
•
RTUNE
RTUNE
SIG_GND
Figure 36. Circuit diagram showing connection of RTUNE to tune
the control loop of the module.
COMP1: Recommended for the case where all of the
output capacitance is composed of only ceramic
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 15
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 2. Recommended RTUNE Compensation.
Output Capacitance
Type
Number of Output
Capacitors**
Total Output
Capacitance (µF)**
RTUNE
resistor (Ω)
RTUNE
Index
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Default Compensation Values
10 x 47µF + 10 x 100µF
12 x 47µF + 12 x 100µF
14 x 47µF + 14 x 100µF
16 x 47µF + 16 x 100µF
19 x 47µF + 19 x 100µF
22 x 47µF + 22 x 100µF
25 x 47µF + 25 x 100µF
28 x 47µF + 28 x 100µF
31 x 47µF + 31 x 100µF
34 x 47µF + 34 x 100µF
38 x 47µF + 38 x 100µF
42 x 47µF + 42 x 100µF
48 x 47µF + 48 x 100µF
55 x 47µF + 55 x 100µF
63 x 47µF + 63 x 100µF
72 x 47µF + 72 x 100µF
82 x 47µF + 82 x 100µF
93 x 47µF + 93 x 100µF
105 x 47µF + 105 x 100µF
120 x 47µF + 120 x 100µF
1398
1644
1890
2136
2505
2874
3243
3612
3981
4350
4842
5334
6072
6933
7917
9024
10254
11607
13083
14928
OPEN
29.1
88.7
150
213
280
348
417
493
569
642
723
806
898
938
1090
1180
1290
1400
1520
1640
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
Ceramic + Polymer
12 x 47µF + 2 x 1000µF
12 x 47µF + 3 x 1000µF
12 x 47µF + 4 x 1000µF
12 x 47µF + 5 x 1000µF
12 x 47µF + 6 x 1000µF
12 x 47µF + 7 x 1000µF
12 x 47µF + 8 x 1000µF
12 x 47µF + 9 x 1000µF
12 x 47µF + 10 x 1000µF
12 x 47µF + 11 x 1000µF
12 x 47µF + 12 x 1000µF
12 x 47µF + 13 x 1000µF
12 x 47µF + 15 x 1000µF
12 x 47µF + 17 x 1000µF
12 x 47µF + 19 x 1000µF
12 x 47µF + 21 x 1000µF
12 x 47µF + 23 x 1000µF
12 x 47µF + 25 x 1000µF
12 x 47µF + 27 x 1000µF
12 x 47µF + 30 x 1000µF
2672
3672
4672
5672
6672
7672
8672
9672
10672
11672
12672
13672
15672
17672
19672
21672
23672
25672
27672
30672
1760
1890
2030
2150
2320
2460
2640
2840
3010
3200
3400
3650
3880
4120
4420
4700
5050
5360
5760
6120
KD
KI
KP
AP
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
375
375
441
506
572
671
770
869
968
1067
1166
1297
1429
1627
1858
2121
2418
2748
3110
3506
4000
2
2
3
3
3
3
4
4
4
4
4
5
5
5
5
6
6
7
7
7
8
37
37
44
51
57
67
77
87
97
107
117
130
143
163
186
212
242
275
311
351
400
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
501
688
876
1063
1250
1438
1625
1813
2000
2187
2375
2562
2937
3312
3687
4061
4436
4811
5186
5748
3
3
3
4
4
4
5
5
5
5
5
6
6
6
7
7
7
8
8
8
300
413
525
638
750
860
975
1088
1200
1312
1425
1537
1762
1987
2212
2437
2662
2887
3112
3449
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
** Total output capacitance includes the capacitance inside the module is 4 x 47µF (3mΩ ESR). Effective capacitance of 47uF cap
taken as 42uF, 100uF cap taken as 81uF. Polymers taken at rated values of 100uF and 820uF
Note: The capacitors used in the digital compensation Loop tables are 47μF/3 mΩ ESR ceramic, 100uF/3.2mΩ ceramic,
1000 μF/6mΩ ESR polymer capacitor and 820uF/19mΩ ESR Polymer capacitor.
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 16
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 2 (continued). RTUNE compensation table
Output Capacitance
Type
Number of Output
Capacitors**
Total Output
Capacitance (µF)**
RTUNE resistor
(Ω)
RTUNE
Index
KD
KI
KP
AP
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
Ceramic + Electrolytic
12 x 47µF + 2 x 820µF
12 x 47µF + 3 x 820µF
12 x 47µF + 4 x 820µF
12 x 47µF + 5 x 820µF
12 x 47µF + 6 x 820µF
12 x 47µF + 7 x 820µF
12 x 47µF + 8 x 820µF
12 x 47µF + 9 x 820µF
12 x 47µF + 10 x 820µF
12 x 47µF + 11 x 820µF
12 x 47µF + 12 x 820µF
12 x 47µF + 14 x 820µF
12 x 47µF + 16 x 820µF
12 x 47µF + 18 x 820µF
12 x 47µF + 20 x 820µF
12 x 47µF + 23 x 820µF
12 x 47µF + 26 x 820µF
12 x 47µF + 29 x 820µF
12 x 47µF + 32 x 820µF
12 x 47µF + 36 x 820µF
2312
3312
3952
4772
5592
6412
7312
8052
8872
9692
10512
12152
13792
15432
17072
19532
21992
24452
26912
30192
6570
7060
7590
8160
8870
9530
10400
11300
12400
13700
15000
16700
18700
21000
24000
28000
33000
40200
50500
68000
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
176
238
301
363
426
488
550
613
675
738
800
925
1050
1174
1299
1486
1674
1861
2048
2298
2
3
3
3
4
4
4
4
5
5
5
5
6
6
6
7
7
8
8
8
176
238
301
363
426
488
550
613
675
738
800
925
1050
1174
1299
1486
1674
1861
2048
2298
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
** Total output capacitance includes the capacitance inside the module is 4 x 47µF (3mΩ ESR). Effective capacitance of 47uF cap
taken as 42uF, 100uF cap taken as 81uF. Polymers taken at rated values of 100uF and 820uF
Note: The capacitors used in the digital compensation Loop tables are 47μF/3 mΩ ESR ceramic, 100uF/3.2mΩ ceramic,
1000 μF/6mΩ ESR polymer capacitor and 820uF/19mΩ ESR Electrolytic capacitor.
Power Module Wizard
GE offers a free web based easy to use tool that helps users simulate the Tunable Loop performance of the TJT120. Go to
http://ge.transim.com/pmd/Home and sign up for a free account and use the module selector tool. The tool also offers
downloadable Simplis/Simetrix models that can be used to assess transient performance, module stability, etc.
Bin ‘a’ and Bin ‘b’ settings using the models available through Power Module Wizard
The TJT120 module has a built-in non-linear compensation adjustment to speed up its transient response to dynamic loading
conditions. When the module senses a load transition in progress, it automatically adjusts the KD, KI, KP settings to higher values
and then reverts to the values set before the transient conditions. The adjustment of the PID coefficients is as follows:
Steady State
Bin ‘a’ – User set values based on RTUNE or programmed
KD
KI
KP
A
B
X
Transient Condition
Bin ‘b’ – Controller adjusted values for duration of transient
KD
KI
KP
1.5 x A
2xB
2xC
For determining the voltage response to a current load transient, it is more accurate to use the Bin ‘b’ settings corresponding to the
selected KD, KI, KP values. For Loop Stability Simulations, the selected PID values corresponding to Bin ‘a’ should be used.
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 17
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
The value is of the number is then given by
Digital Feature Descriptions
Value = Mantissa x 2 Exponent
PMBus Interface Capability
PMBus Addressing
The 120A TeraDLynx power modules have a PMBus interface
that supports both communication and control. The PMBus
Power Management Protocol Specification can be obtained
from www.pmbus.org. The modules support a subset of
version 1.1 of the specification (see Table 4 for a list of the
specific commands supported). Most module parameters can
be programmed using PMBus and stored as defaults for later
use.
The power module is addressed through the PMBus using a
device address. The module supports 128 possible addresses
(0 to 127 in decimal) which can be set using resistors
connected from the ADDR0 and ADDR1 pins to SIG_GND. Note
that some of these addresses (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
12, 40, 44, 45, 55 in decimal) are reserved according to the
SMBus specification and may not be useable. The address is
set in the form of two octal (0 to 7) digits, with each pin
setting one digit. The ADDR1 pin sets the high order digit and
ADDR0 sets the low order digit. The resistor values suggested
for each digit are shown in Table 3 (E96 series resistors are
recommended). Note that if either address resistor value is
outside the range specified in Table 4, the module will
respond to address 127.
Communication over the module PMBus interface supports
the Packet Error Checking (PEC) scheme. The PMBus master
must generate the correct PEC byte for all transactions, and
check the PEC byte returned by the module.
The module also supports the SMBALERT# response protocol
whereby the module can alert the bus master if it wants to
talk. For more information on the SMBus alert response
protocol, see the System Management Bus (SMBus)
specification.
The user must know which I2C addresses are reserved in a
system for special functions and set the address of the module
to avoid interfering with other system operations. Both
100kHz and 400kHz bus speeds are supported by the module.
Connection for the PMBus interface should follow the High
Power DC specifications given in section 3.1.3 in the SMBus
specification V2.0 for the 400kHz bus speed or the
The module has non-volatile memory that is used to store
configuration settings. Not all settings programmed into the
device are automatically saved into this non-volatile memory,
only those specifically identified as capable of being stored
can be saved (see Table 4 for which command parameters can
be saved to non-volatile storage).
Low Power DC specifications in section 3.1.2. The complete
SMBus specification is available from the SMBus web site,
smbus.org.
PMBus Data Format
For commands that set thresholds, voltages or report such
quantities, the module supports the “Linear” data format
among the three data formats supported by PMBus. The
Linear Data Format is a two-byte value with an 11-bit, two’s
complement mantissa and a 5-bit, two’s complement
exponent. The format of the two data bytes is shown below:
Data Byte High
ADDR0
RADDR0
Data Byte Low
7 6 5 4 3
2 1 0 7 6 5 4 3 2 1 0
Exponent
Mantissa
MSB
ADDR1
RADDR1
SIG_GND
Figure 37. Circuit showing connection of resistors used to set
the PMBus address of the module.
MSB
Table 3
PMBus Address Table
ADDR1 Resistor Values
ADDR0 Resistor
Values
4.99K
15.4K
27.4K
41.2K
54.9K
71.5K
90.9K
110K
137K
162K
191K
August 24, 2020232K
4.99K
15.4k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
27.4K
41.2K
54.9K
71.5K
90.9K
110K
25
37
49
61
73
26
38
50
62
74
27
39
51
63
75
28
40
52
64
76
29
41
53
65
77
30
42
54
66
78
31
43
55
67
79
32
44
56
68
80
33
45
57
69
81
34
46
58
70
82
35
47
59
71
83
36
48
60
72
84
©2017 General Electric Company. All rights reserved.
85
86
87
88
89
90
91
92
93
94
95
96
137K
162K
191K
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
64
64
64
64
64
Page 18
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Operation (01h)
This is a paged register. The OPERATION command can be
used to turn the module on or off in conjunction with the
ON/OFF pin input. It is also used to margin up or margin down
the output voltage
PMBus Enabled On/Off
The module can also be turned on and off via the PMBus
interface. The OPERATION command is used to actually turn
the module on and off via the PMBus, while the
ON_OFF_CONFIG command configures the combination of
analog ON/OFF pin input and PMBus commands needed to
turn the module on and off. Bit [7] in the OPERATION
command data byte enables the module, with the following
functions:
0
1
:
:
Output is disabled
Output is enabled
This module uses the lower five bits of the ON_OFF_CONFIG
data byte to set various ON/OFF options as follows:
Bit Position
Access
Function
Default Value
4
r/w
PU
1
3
r/w
CMD
0
2
r/w
CPR
1
1
r
X
x
0
r
CPA
1
PU: Sets the default to either operate any time input power is
present or for the ON/OFF to be controlled by the analog
ON/OFF input and the PMBus OPERATION command. This bit
is used together with the CP, CMD and ON bits to determine
startup.
Bit Value
0
1
Action
Module powers up any time power is present
regardless of state of the analog ON/OFF pin
Module does not power up until commanded
by the analog ON/OFF pin and the
OPERATION command as programmed in bits
[2:0] of the ON_OFF_CONFIG register.
CMD: The CMD bit controls how the device responds to the
OPERATION command.
Bit Value
0
1
Action
Module ignores the ON bit in the OPERATION
command
Module responds to the ON bit in the
OPERATION command
CPR: Sets the response of the analog ON/OFF pin. This bit is
used together with the CMD, PU and ON bits to determine
startup.
Bit Value
0
1
Action
Module ignores the analog ON/OFF pin, i.e.
ON/OFF is only controlled through the
PMBUS via the OPERATION command
Module requires the analog ON/OFF pin to
be asserted to start the unit
August 24, 2020
CPA: Sets the action of the analog ON/OFF pin when turning
the controller OFF. This bit is internally read and cannot be
modified by the user
PMBus Adjustable Soft Start Rise Time
The soft start rise time of module output is adjustable in the
module via PMBus. The TON_RISE command can set the rise
time in ms, and allows choosing soft start times between 1
and 1000ms. Rise time below 10msec may cause the module
it overshoot its voltage setpoint during startup
Output Voltage Adjustment Using the PMBus
Two PMBus commands are available to change the output
voltage setting. The first, VOUT_COMMAND can set the
output voltage directly. The second, VOUT_TRIM is used to
apply an offset to the commanded output voltage.
Since the output voltage can be set using an external RTrim
resistor as well, an additional PMBus command
MFR_VOUT_SET_MODE is used to tell the module whether
the VOUT_COMMAND is used to directly set output voltage or
whether RTrim is to be used. If MFR_VOUT_SET_MODE is set
to where bit position 7 is set at 1, then VOUT_COMMAND is
ignored and output voltage is set solely by RTrim. If bit 7 of
MFR_VOUT_SET_MODE is set to 0, then output voltage is set
using VOUT_COMMAND, and the value of RTrim is only used
at startup to set the output voltage.
The second output voltage adjustment command VOUT_TRIM
works in either case to provide a fixed offset to the output
voltage. This allows PMBus adjustment of the output voltage
irrespective of how MFR_VOUT_SET_MODE is set and allows
digital adjustment of the output voltage setting even when
RTrim is used.
For all digital commands used to set or adjust the output
voltage via PMBus, the resolution is 98µV.
Output Voltage Margining Using the PMBus
The output voltage of the module can be margined via PMBus
between 0.6 and 1.5V. The margining voltage can be adjusted
in 98µV steps.
PMBus Adjustable Overcurrent Warning
The module can provide an overcurrent warning via the
PMBus. The threshold for the overcurrent warning can be set
using the parameter IOUT_OC_WARN_LIMIT. This command
uses the “Linear” data format with a two byte data word
where the upper five bits [7:3] of the high byte represent the
exponent and the remaining three bits of the high byte [2:0]
and the eight bits in the low byte represent the mantissa. The
value of the IOUT_OC_WARN_LIMIT can be stored to nonvolatile memory using the STORE_DEFAULT_ALL command.
Temperature Status via PMBus
The module provides information related to temperature of
the module through standardized PMBus commands.
Commands READ_TEMPERATURE1, READ_TEMPERATURE_2
are mapped to module temperature and internal temperature
of the PWM controller, respectively. The temperature
readings are returned in °C and in two bytes.
©2017 General Electric Company. All rights reserved.
Page 19
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
PMBus Adjustable Output Over, Under Voltage
Protection
The module has output over and under voltage protection
capability. The PMBus command VOUT_OV_FAULT_LIMIT is
used to set the output over voltage threshold. The default
value is configured to be 112.5% of the commanded output.
The command VOUT_UV_FAULT_LIMIT sets the threshold that
detects an output under voltage fault. The default values are
87.5% of the commanded output voltage. Both commands use
two data bytes formatted in the Linear format.
PMBus Adjustable Input Undervoltage Lockout
The module allows adjustment of the input under voltage
lockout and hysteresis. The command VIN_ON allows setting
the input voltage turn on threshold, while the VIN_OFF
command sets the input voltage turn off threshold. For the
VIN_ON command possible values are 7 to 14V and for the
VIN_OFF command, possible values are 6.75V to 14V. Both
VIN_ON and VIN_OFF commands use the “Linear” format with
two data bytes.
Measurement of Output Current, Output Voltage and
Input Voltage
The module can measure key module parameters such as
output current, output voltage and input voltage and provide
this information through the PMBus interface.
Measuring Output Current Using the PMBus
The module measures output current by using a signal derived
from the switching FET currents. The current gain factor is
accessed using the IOUT_CAL_GAIN command, and consists of
two bytes in the Linear data format. During manufacture, each
module is calibrated by measuring and storing the current
gain factor into non-volatile storage.
The current measurement accuracy is also improved by each
module being calibrated during manufacture with the offset in
the current reading. The IOUT_CAL_OFFSET command is used
to store and read the current offset. The READ_IOUT
command provides module average output current
information. This command only supports positive output
current, i.e. current sourced from the module. If the converter
is sinking current a reading of 0 is provided. The READ_IOUT
command returns two bytes of data in the Linear data format.
Measuring Output Voltage Using the PMBus
The module provides output voltage information using the
READ_VOUT command. The command returns two bytes of
data in Linear format.
Measuring Input Voltage Using the PMBus
The module provides input voltage information using the
READ_VIN command. The command returns two bytes of data
in the Linear format.
The module supports a number of status information
commands implemented in PMBus. A 1 in the bit position
indicates the fault that is flagged.
STATUS_BYTE: Returns one byte of information with a
summary of the most critical device faults.
Bit
Default
Flag
Position
Value
7
X
0
6
OFF
0
5
VOUT Overvoltage
0
4
IOUT Overcurrent
0
3
VIN Undervoltage
0
2
Temperature
0
1
CML (Comm. Memory Fault)
0
0
None of the above
0
STATUS_WORD: Returns two bytes of information with a
summary of the module’s fault/warning conditions.
Low Byte
Bit
Default
Flag
Position
Value
7
X
0
6
OFF
0
5
VOUT Overvoltage
0
4
IOUT Overcurrent
0
3
VIN Undervoltage
0
2
Temperature
0
1
CML (Comm. Memory Fault)
0
0
None of the above
0
High Byte
Bit
Position
7
6
5
4
3
2
1
0
Flag
VOUT fault or warning
IOUT fault or warning
X
X
POWER_GOOD# (is negated)
X
X
X
Default
Value
0
0
0
0
0
0
0
0
STATUS_VOUT: Returns one byte of information relating to
the status of the module’s output voltage related faults.
Bit
Position
7
6
5
4
3
2
1
0
Flag
VOUT OV Fault
VOUT_OV_WARNING
VOUT_UV_WARNING
VOUT UV Fault
X
X
X
X
Default
Value
0
0
0
0
0
0
0
0
Reading the Status of the Module using the PMBus
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 20
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
STATUS_IOUT: Returns one byte of information relating to the
status of the module’s output voltage related faults.
1:0
Reserved
10
High Byte
Bit
Position
7
6
5
4
3
2
1
0
Default
Value
0
0
0
0
0
0
0
0
Flag
IOUT OC Fault
X
IOUT OC Warning
X
X
X
X
X
STATUS_TEMPERATURE: Returns one byte of information
relating to the status of the module’s temperature related
faults.
Bit
Position
7
6
5
4
3
2
1
0
Default
Value
0
0
0
0
0
0
0
0
Flag
OT Fault
OT Warning
X
X
X
X
X
X
STATUS_CML: Returns one byte of information relating to the
status of the module’s communication related faults.
Bit
Position
7
6
5
4
3
2
1
0
Flag
Invalid/Unsupported Command
Invalid/Unsupported Data
Packet Error Check Failed
Memory Fault Detected
X
X
Other Communication Fault
X
Default
Value
0
0
0
0
0
0
0
0
Bit
Position
7:3
2:0
Flag
Module Revision Number
Reserved
Default
Value
None
000
User-Programmable Compensation Coefficients
The output voltage control compensation coefficients can be
changed by the user via PMBus commands. On startup, the
module uses stored values of the four compensation
parameters KD, KI, KP and ALPHA. If the module detects a
valid value of RTUNE connected to the module, the values of
KD, KI, KP and ALPHA are then changed to the appropriate
values. Beyond this, the user can use the PMBus commands
listed below to overwrite the values of KD, KP, KI and ALPHA.
MFR_SPECIFIC_KP: Allows the user to program the value of
the KP compensation coefficient. The allowed range is -32768
to 32767. The entire 16 bits are used to enter this range of
integer values in two’s complement binary format.
For stable operation, the maximum allowed value is 10922
MFR_SPECIFIC_KI: Allows the user to program the value of the
KI compensation coefficient. The allowed range is -32768 to
32767. The entire 16 bits are used to enter this range of
integer values in two’s complement binary format.
For stable operation, the maximum allowed value is 10922
MFR_SPECIFIC_KD: Allows the user to program the value of
the KD compensation coefficient. The allowed range is -32768
to 32767. The entire 16 bits are used to enter this range of
integer values in two’s complement binary format.
For stable operation, the maximum allowed value is 10922
MFR_SPECIFIC_ALPHA: Allows the user to program the value
of the ALPHA compensation coefficient. The allowed range is 256 to 256. The entire 16 bits are used to enter this range of
integer values in two’s complement binary format. For stable
operation, use positive values only as suggested with the
maximum allowed value being 256.
MFR_SPECIFIC_00: Returns information related to the type of
module and revision number. Bits [7:2] in the Low Byte
indicate the module type (001101 corresponds to the TJT120
series of module), while bits [7:3] in the high byte indicate the
revision number of the module.
Low Byte
Bit
Position
7:2
August 24, 2020
Flag
Module Name
Default
Value
001101
©2017 General Electric Company. All rights reserved.
Page 21
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Summary of Supported PMBus Commands
Please refer to the PMBus 1.1 specification for more details of these commands. For the registers where a range is specified, any value
outside the range is ignored and the module continues to use the previous value.
Table 4
Hex
Code
Command
Non-Volatile
Memory Storage
Brief Description
Turn Module on or off. Also used to margin the output voltage
01
OPERATION
02
ON_OFF_CONFIG
03
CLEAR_FAULTS
10
WRITE_PROTECT
11
STORE_DEFAULT_ALL
12
RESTORE_DEFAULT_ALL
20
VOUT_MODE
21
VOUT_COMMAND
August 24, 2020
Format
Bit Position
Access
Function
Default Value
7
r/w
On
1
6
r
X
0
5
r/w
0
Unsigned Binary
4
3
2
r/w
r/w
r/w
Margin
0
0
0
1
r
X
X
0
r
X
X
Configures the ON/OFF functionality as a combination of analog ON/OFF pin and PMBus
commands
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r/w
r/w
r/w
r
r
Function
X
X
X
pu
cmd
cpr
X
cpa
Default Value
0
0
0
1
0
1
x
1
Clear any fault bits that may have been set, also releases the SMBALERT# signal if the
device has been asserting it.
Used to control writing to the module via PMBus. Copies the current register setting in
the module whose command code matches the value in the data byte into non-volatile
memory (EEPROM) on the module
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
x
x
x
x
x
Function
bit7
bit6
bit5
X
X
X
X
X
Default Value
0
0
0
X
X
X
X
X
Bit5: 0 – Enables all writes as permitted in bit6 or bit7
1 – Disables all writes except the WRITE_PROTECT, OPERATION
and ON_OFF_CONFIG (bit 6 and bit7 must be 0)
Bit 6: 0 – Enables all writes as permitted in bit5 or bit7
1 – Disables all writes except for the WRITE_PROTECT and
OPERATION commands (bit5 and bit7 must be 0)
Bit7: 0 – Enables all writes as permitted in bit5 or bit6
1 – Disables all writes except for the WRITE_PROTECT command
(bit5 and bit6 must be 0)
Copies all current register settings in the module into non-volatile memory (EEPROM) on
the module. Takes about 50ms for the command to execute.
Restores all current register settings in the module from values in the module non-volatile
memory (EEPROM)
The module has MODE set to Linear and Exponent set to -14. These values cannot be
changed
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mode
2’s complement Exponent
Default Value
0
0
0
1
0
0
1
0
Set desired output voltage. Only 16-bit unsigned mantissa – implied exponent of -14 per
VOUT_MODE command. Valid range is 0.6 to 1.5V.
Format
Unsigned Mantissa
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
©2017 General Electric Company. All rights reserved.
YES
YES
YES
YES
Page 22
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (continued)
Hex
Code
Command
22
VOUT_TRIM
23
VOUT_CAL_OFFSET
25
VOUT_MARGIN_HIGH
26
35
VOUT_MARGIN_LOW
VIN_ON
August 24, 2020
Brief Description
Apply a fixed offset voltage to the set output voltage from either the RTrim resistor or the
VOUT_COMMAND. Implied exponent of -14 per VOUT_MODE command.
Allowed range is ±300mV.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
0
0
0
0
0
0
0
0
Applies an offset to the commanded output voltage to calibrate out errors in setting module
output voltage (between -100mV and +100mV) and when output voltage is set via the PMBus
command VOUT_COMMAND (21). Implied exponent of -14 per VOUT_MODE command.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r
r
r
r
r
r
r
Function
Mantissa
Default Value
Variable based on factory calibration
Bit Position
7
6
5
4
3
2
1
0
Access
r
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable based on factory calibration
Sets the target voltage for margining the output high. Implied exponent of -14 per VOUT_MODE
command. Allowed range is 0.6 to 1.5V
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Non-Volatile
Memory Storage
YES
YES
YES
Sets the target voltage for margining the output low. Implied exponent of -14 per VOUT_MODE
command. Allowed range is 0.6 to 1.5V.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
YES
Sets the value of input voltage at which the module turns on. Exponent is fixed at -6. Allowed
range is 7 to 14V.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
1
1
0
1
0
0
0
1
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
1
0
0
0
0
0
0
YES
©2017 General Electric Company. All rights reserved.
Page 23
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (continued)
Hex
Code
Command
36
VIN_OFF
38
IOUT_CAL_GAIN
39
IOUT_CAL_OFFSET
40
VOUT_OV_FAULT_LIMIT
41
Brief Description
Sets the value of input voltage at which the module turns off. Exponent is fixed at -6. Allowed
range is 6.75 to 14V.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
1
1
0
1
0
0
0
1
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
0
1
1
0
0
0
0
Applies a gain correction to the READ_IOUT command results to calibrate out gain errors in
module measurements of the output current. The number in this register is divided by 8192
to generate the correction factor. Allowed range is 6553 to 9830.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r/w
Function
Integer
Default Value
Variable based on factory calibration
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable based on factory calibration
Returns the value of the offset correction term used to correct the measured output current.
The exponent is fixed at -2. The allowed range is -50 to +50A.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r/w
r
r
Function
Exponent
Mantissa
Default Value
1
1
1
1
0
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable based on factory calibration
Sets the voltage level for an output overvoltage fault. Implied exponent of -14 per
VOUT_MODE command. Allowed range is 0.6 to 2V. Triggers SMBALERT.
Format
Linear, two’s compliment binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w r/w
Function
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Instructs the module on what action to take in response to an output overvoltage fault
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
VOUT_OV_FAULT_RESPONSE
Access
r/w
r/w
r/w
r/w
r/w
r
r
r
RSP
RSP
Function
RS[2] RS[1] RS[0]
X
X
X
[1]
[0]
Default Value
1
0
1
1
1
0
0
0
August 24, 2020
©2017 General Electric Company. All rights reserved.
Non-Volatile
Memory Storage
YES
YES
YES
YES
YES
Page 24
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (continued)
Hex
Code
42
Command
VOUT_OV_WARN_LIMIT
43
VOUT_UV_WARN_LIMIT
44
VOUT_UV_FAULT_LIMIT
45
Brief Description
Sets the value of output voltage at which the module generates warning for over-voltage.
Exponent is fixed at -14. Allowed range is 0.6 to 2V. Triggers SMBALERT.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r/w
r/w
r/w
Function
Exponent
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Sets the value of output voltage at which the module generates warning for under-voltage.
Exponent is fixed at -14. Allowed range is 0.05 to 1.5V. Triggers SMBALERT.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r/w
r/w
r/w
Function
Exponent
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Sets the voltage level for an output undervoltage fault. Exponent is fixed at -14. Allowed
range is 0.05 to 2V. Triggers SMBALERT.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r/w
r/w
r/w
Function
Exponent
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Instructs the module on what action to take in response to an output undervoltage fault
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
VOUT_UV_FAULT_RESPONSE
Access
r/w
r/w
r/w
r/w
r/w
r
r
r
RSP
RSP
Function
RS[2] RS[1] RS[0]
X
X
X
[1]
[0]
Default Value
1
0
1
1
1
0
0
0
Non-Volatile
Memory Storage
YES
YES
YES
YES
Sets the current level for an output overcurrent fault (can only be lowered below the
maximum of 140A). The exponent is fixed at -2. Triggers SMBALERT.
46
IOUT_OC_FAULT_LIMIT
August 24, 2020
Format
Bit Position
Access
Function
Default Value
Bit Position
Access
Function
Default Value
15
r
14
r
1
7
r/w
1
6
r/w
0
0
Linear, two’s complement binary
13
12
11
10
9
8
r
r
r
r
r/w
r/w
Exponent
Mantissa
1
1
0
0
1
0
5
4
3
2
1
0
r/w
r/w
r/w
r/w
r/w
r/w
Mantissa
0
0
1
0
0
0
©2017 General Electric Company. All rights reserved.
YES
Page 25
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (continued)
Hex
Code
Command
4A
IOUT_OC_WARN_LIMIT
4F
OT_FAULT_LIMIT
50
OT_FAULT_RESPONSE
Brief Description
Sets the value of current level at which the module generates warning for overcurrent.
Allowed range is 0 to 140A. The exponent is fixed at -2. Triggers SMBALERT.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r/w
Function
Exponent
Mantissa
Default Value
1
1
1
1
0
0
1
0
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
0
1
0
1
0
0
0
Sets the temperature level above which over-temperature fault occurs. Allowed range is 35 to
140°C. The exponent is fixed at 0. Triggers SMBALERT.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r/w
r
r
Function
Exponent
Mantissa
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
0
0
0
1
0
1
0
Configures the over temperature fault response
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r
r
r
RSP
RSP
Function
RS[2] RS[1] RS[0]
X
X
X
[1]
[0]
Default Value
1
0
1
1
1
0
0
0
Non-Volatile
Memory Storage
YES
YES
YES
Sets the over temperature warning level in °C. Allowed range is 30 to 130°C. The exponent is
fixed at 0. Triggers SMBALERT.
51
55
OT_WARN_LIMIT
VIN_OV_FAULT_LIMIT
August 24, 2020
Format
Bit Position
Access
Function
Default Value
Bit Position
Access
Function
Default Value
15
r
14
r
0
7
r/w
0
6
r/w
0
1
Linear, two’s complement binary
13
12
11
10
9
8
r
r
r
r
r
r
Exponent
Mantissa
0
0
0
0
0
0
5
4
3
2
1
0
r/w
r/w
r/w
r/w
r/w
r/w
Mantissa
1
1
1
1
0
1
Sets the input overvoltage fault limit. Exponent is fixed at -6. Allowed range is 6.75 to 15V.
Triggers SMBALERT
Format
Linear, two’s complement binary.
Bit Position
15
14
13
12tr
11
10
9
8
Access
r
r
r
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
1
1
0
1
0
0
1
1
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
0
1
0
0
0
0
0
©2017 General Electric Company. All rights reserved.
YES
YES
Page 26
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (continued)
Hex
Code
56
57
58
59
5A
5E
Command
VIN_OV_FAULT_RESPONSE
Non-Volatile
Memory Storage
Brief Description
Configures the VIN overvoltage fault response.
Format
Unsigned Binary
Bit Position
7
6
5
4
3
Access
r/w
r/w
r/w
r/w
r/w
RSP
RSP
Function
RS[2] RS[1] RS[0]
[1]
[0]
Default Value
1
0
0
0
0
2
r
1
r
0
r
X
X
X
0
0
0
YES
VIN_OV_WARN_LIMIT
Sets the value of the input voltage that causes input voltage low warning. Exponent fixed at 6. Allowed range is 6.75 to 15V. Triggers SMBALERT
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
1
1
0
1
0
0
1
1
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
0
0
0
0
0
0
0
YES
VIN_UV_WARN_LIMIT
Sets the value of the input voltage that causes input voltage low warning. Exponent fixed at 6. Allowed range is 5 to 14V. Triggers SMBALERT
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
1
1
0
1
0
0
0
1
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
0
1
0
0
0
0
0
YES
VIN_UV_FAULT_LIMIT
Sets the value of the input voltage that causes an input undervoltage fault. Exponent fixed at 6. Allowed range is 5 to 14V. Triggers SMBALERT
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
1
1
0
1
0
0
0
1
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
1
0
1
0
0
0
0
0
YES
Instructs the module on what action to take in response to an input undervoltage fault.
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r
r
r
RSP
RSP
Function
RS[2] RS[1] RS[0]
X
X
X
[1]
[0]
Default Value
1
0
1
1
1
0
0
0
YES
Sets the output voltage level at which the PGOOD pin is asserted high. Implied exponent of 14 per VOUT_MODE command. Allowed range is 0.26 to 1.65V.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
YES
VIN_UV_FAULT_RESPONSE
POWER_GOOD_ON
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 27
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (continued)
Hex
Code
5F
Command
POWER_GOOD_OFF
60
TON_DELAY
61
TON_RISE
64
TOFF_DELAY
65
TOFF_FALL
August 24, 2020
Brief Description
Sets the output voltage level at which the PGOOD pin is de-asserted low. Implied exponent of 14 per VOUT_MODE command. Allowed range is 0.06 to 1.63V.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable
Sets the delay time in ms of the output voltage during startup. Allowed range is 0 to 1000ms.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
0
0
0
0
0
0
1
0
Sets the rise time in ms of the output voltage during startup. The exponent is fixed at 0. Allowed
range is 1 to 1000ms.
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
R
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
0
0
0
0
0
1
0
1
Sets the delay time in ms of the output voltage during turn-off. The exponent is fixed at 0.
Allowed range is 0 to 1000ms.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
R
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
0
0
0
0
0
0
1
0
Sets the fall time in ms of the output voltage during turn-off. Exponent is fixed at 0. Allowed
range is 0 to 1000ms.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
R
r
r
r
r/w
r/w
Function
Exponent
Mantissa
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
0
0
0
0
0
1
0
1
©2017 General Electric Company. All rights reserved.
Non-Volatile
Memory Storage
YES
YES
YES
YES
YES
Page 28
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (Continued)
Hex
Code
78
Command
STATUS_BYTE
Non-Volatile
Memory Storage
Brief Description
Returns one byte of information with a summary of the most critical module faults
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
R
r
r
r
r
r
VOUT_O
Flag
X
OFF
IOUT_OC VIN_UV TEMP CML OTHER
V
Default Value
Variable
Returns two bytes of information with a summary of the module’s fault/warning conditions
Format
Unsigned binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
R
r
r
r
r
r
Flag
79
STATUS_WORD
VOUT IOUT_OC
Default Value
Bit Position
Access
7
r
6
r
Flag
X
OFF
INPUT
5
R
7B
7C
STATUS_VOUT
STATUS_IOUT
STATUS_INPUT
7E
X
X
X
3
r
2
r
1
r
0
r
Variable
4
r
Variable
Returns one byte of information with the status of the module’s output voltage related faults
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
VOUT_OV_ VOUT_UV_
Flag
VOUT_OV
VOUT_UV X
X
X
X
Warn
Warn
Default Value
Variable
Returns one byte of information with the status of the module’s output current related faults
Format
Unsigned Binary
Bit Position
7
6 5 4
3
2 1
0
Access
r
r r r
r
r r
r
Flag
IOUT_OC X X X
IOUT_OC_WARN
X X
X
Default Value
Variable
Returns one byte of information with the status of the module’s input related faults
Format
Bit Position
Access
Flag
Default Value
7D
PGOOD
VOUT_OV IOUT_OC VIN_UV TEMP CML OTHER
Default Value
7A
X
Unsigned Binary
7
6
5
4
r
r
r
r
VIN_OV_FAULT VIN_OV_W VIN_UV_ VIN_UV
ARNING WARNING _FAULT
Variable
3
r
X
2
r
X
1
r
X
0
r
X
Returns one byte of information with the status of the module’s temperature related faults
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
STATUS_TEMPERATURE
Access
r
r
r
r
r
r
r
r
Flag
OT_FAULT
OT_WARN
X
X
X
X
X
X
Default Value
Variable
STATUS_CML
Returns one byte of information with the status of the module’s communication related faults
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Invalid
Command
Flag
Default Value
August 24, 2020
Invalid PEC
Data Fail
X
X
X
Other Comm Fault
X
Variable
©2017 General Electric Company. All rights reserved.
Page 29
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (Continued)
Hex
Code
Command
88
READ_VIN
8B
READ_VOUT
8C
READ_IOUT
8D
READ_TEMPERATURE_1
Non-Volatile
Memory Storage
Brief Description
Returns the value of the input voltage applied to the module.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r
Function
Exponent
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
Variable
Returns the value of the output voltage of the module. Exponent is fixed at -14
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
Variable
Returns the value of the output current of the module.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r
Function
Exponent
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
Variable
Returns a module FET package temperature in ºC.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r
Function
Exponent
Mantissa
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
Variable
Returns the module PWM controller temperature in ºC.
8E
READ_TEMPERATURE_2
August 24, 2020
Format
Bit Position
Access
Function
Default Value
Bit Position
Access
Function
Default Value
15
r
7
r
Linear, two’s complement binary
13
12
11
10
9
r
r
r
r
r
Exponent
Mantissa
Variable
6
5
4
3
2
1
r
r
r
r
r
r
Mantissa
Variable
14
r
©2017 General Electric Company. All rights reserved.
8
r
0
r
Page 30
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (Continued)
Hex
Code
Command
Non-Volatile
Memory Storage
Brief Description
Returns the switching Frequency of the converter. The Frequency is in Kilohertz and is
read only, consisting of two bytes.
95
READ_FREQUENCY
98
PMBUS_REVISION
B0
MFR_SPECIFIC_KP
B1
MFR_SPECIFIC_KI
B2
B3
MFR_SPECIFIC_KD
MFR_SPECIFIC_ALPHA
August 24, 2020
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r
Function
Integer
Default Value
0
0
0
0
0
0
0
1
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Integer
Default Value
1
0
0
1
0
0
0
0
Returns one byte indicating the module is compliant to PMBus Spec. 1.1
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Default Value
0
0
0
1
0
0
0
1
Value used to program specific proportional coefficient of the PID compensation Block.
Do not use value higher than 10922
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Value used to program specific integral coefficient of the PID compensation Block.
Do not use value higher than 10922.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Value used to program specific differential coefficient of the PID compensation. Do not
use value higher than 10922
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Value used to program specific alpha value of the PID compensation block
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
Access
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Bit Position
7
6
5
4
3
2
Access
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable
Allowable range: -256 to +256. Use positive values only
©2017 General Electric Company. All rights reserved.
9
r/w
YES
YES
YES
YES
8
r/w
YES
1
r/w
0
r/w
Page 31
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (Continued)
Hex
Code
D0
D4
D5
D7
D8
Command
MFR_SPECIFIC_00
Non-Volatile
Memory Storage
Brief Description
Returns module name information (read only)
Format
Unsigned Binary
Bit Position
15
14
13
12
11
10
Access
r
r
r
r
r
r
Function
Reserved
Default Value
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
Access
r
r
r
r
r
r
Function
Module Name
Default Value
0
0
1
1
0
1
9
r
8
r
YES
0
0
1
0
r
r
Reserved
0
0
Applies an offset to the READ_VOUT command results to calibrate out offset errors in module
measurements of the output voltage (between -125mV and +124mV). Exponent is fixed at -14.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
MFR_READ_VOUT_CAL_OF
Function
Mantissa
FSET
Default Value
Variable based on factory calibration
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable based on factory calibration
Applies a gain correction to the READ_VOUT command results to calibrate out gain errors in
module measurements of the output voltage. The number in this register is divided by 8192 to
generate the correction factor.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
MFR_READ_VOUT_CAL_GA
Function
Integer
IN
Default Value
Variable based on factory calibration
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer
Default Value
Variable based on factory calibration
Applies an offset to the commanded output voltage to calibrate out errors in setting module
output voltage (between -63mV and +62mV) when using Trim resistor. Exponent is fixed at 14.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
8
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
MFR_VOUT_CAL_OFFSET
Function
Mantissa
Default Value
Variable based on factory calibration
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
Variable based on factory calibration
Bit 7 used to determine whether output voltage is set using RTrim or the VOUT_COMMAND.
Bit 7: 1 – Output voltage is solely set by RTrim value and can be adjusted from set value using
the VOUT_TRIM command
Bit 7: 0 – Output voltage is solely set by VOUT_COMMAND and can be adjusted from set
value using the VOUT_TRIM command.
Bit 0: Used to indicate whether changes have been made to the Vout set point, PG On/Off
levels, margin levels or OV/UV fault/warning levels. A 1 in this position indicates that one or
more of the values have changed from the default. If this bit is 0, then the default values are
MFR_VOUT_SET_MODE
used.
Format
Bit Position
Access
Flag
Default Value
August 24, 2020
7
6
r/w
r/w
VOUT_SE
X
T_MODE
1
0
5
r/w
Unsigned Binary
4
3
2
r/w r/w r/w
1
r/w
0
r/w
X
X
X
X
X
USER_CHANGES
0
0
0
0
0
0
©2017 General Electric Company. All rights reserved.
YES
YES
YES
YES
Page 32
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Table 4 (Continued)
Hex
Code
DB
DD
Command
MFR_FW_REVISION
MFR_RTUNE_INDEX
Non-Volatile
Memory Storage
Brief Description
Value used to program the firmware revision. This command is read only.
Format
Linear, two’s complement binary
Bit Position
15
14
13
12
11
10
9
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer – Major Version
Default Value
Variable
Bit Position
7
6
5
4
3
2
1
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Function
Integer – Minor Version
Default Value
Variable
8
r/w
0
r/w
Returns the index derived from the resistor strapped to the RTUNE pin of the module. Range is
from 0 to 59.
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Integer
Default Value
Variable
Gets or sets the write protection status of various PMBus commands. When a bit is set, the
corresponding PMBus command is write protected and can only be read.
Format
Unsigned Binary
Bit Position
15
14
13
12
11
10
9
8
Access
r
r
r
r
r
r
r
r
Function
Reserved
Default Value
x
x
x
x
x
x
x
x
Bit Position
7
6
5
4
3
2
1
0
DF
MFR_WRITE_PROTECT
Access
r
r
r
r
r/w
r/w
r/w
r/w
Function
Reserved
Used
Default Value
x
x
x
x
1
1
1
0
Bit 0: ON_OFF_CONFIG
Bit 1: IOUT_OC_FAULT_LIMIT
Bit 2: OT_FAULT_LIMIT
Bit 3: OT_FAULT_RESP
Bits 4 – 15: Reserved
Read only command which returns 12 bytes with the value of YYFFWWXXXXXX, where
YY : year of manufacture
MFR_MODULE_DATE_LOC_ FF: Factory where manufactured
F0
SN
WW: Fiscal week of the year when unit was manufactured
XXXXXX: Unique number for the specific unit – corresponding to serial number on the label of
the unit.
SMBALERT# is also triggered:
•
when an invalid/unrecognized PMBus command (write or read) is issued
•
By invalid PMBus data (write)
•
By PEC Failure (when used)
•
By Enable OFF (when used)
•
Module is out of Power Good Range
YES
YES
YES
Digital Power Insight (DPI)
GE offers a software tool that set helps users evaluate and simulate the PMBus performance of the TJT120A modules without the
need to write software.
The software can be downloaded for free at http://go.ge-energy.com/DigitalPowerInsight.html. A GE USB to I2C
adapter and associated cable set are required for proper functioning of the software suite. For first time users, the GE DPI Evaluation
Kit can be purchased from leading distributors at a nominal price and can be used across the entire range of GE Digital POL Modules.
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 33
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Thermal Considerations
Power modules operate in a variety of thermal environments;
however, sufficient cooling should always be provided to help
ensure reliable operation.
Considerations include ambient temperature, airflow, module
power dissipation, and the need for increased reliability. A
reduction in the operating temperature of the module will
result in an increase in reliability. The thermal data presented
here is based on physical measurements taken in a wind
tunnel. The test set-up is shown in Figure 37. The preferred
airflow direction for the module is in Figure 38.
25.4_
(1.0)
Wind Tunnel
PWBs
Power Module
Figure 38. Preferred airflow direction and location of hotspots of the module (Tref).
76.2_
(3.0)
x
12.7_
(0.50)
Probe Location
for measuring
airflow and
ambient
temperature
Air
flow
The thermal reference points, Tref used in the specifications are
also shown in Figure 38. For reliable operation the
temperatures at these points should not exceed 120°C. The
output power of the module should not exceed the rated
power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame Board-Mounted
Power Modules” for a detailed discussion of thermal aspects
including maximum device temperatures.
Figure 37. Thermal Test Setup.
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 34
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Example Application Circuit
Requirements:
Vin:
12V
Vout:
1.2V
Iout:
120A max., worst case load transient is from 60A to 90A, 10A/usec
Vout:
25mV for worst case load transient
Vin, ripple
2% of Vin (240mV p-p)
Vin+
VIN
PGOOD
3.3V*
Vout+
VOUT
VS+
MODULE
SEQ
CI3
CI2
CI1
Q1
RTUNE
TRIM
DATA
ADDR0
SMBALRT#
ADDR1
CLK
ON/OFF
SYNC
GND
GND
RTUNE
CO1
CO2
CO3
RTrim
RADDR1 RADDR0
SIG_GND
VS-
3.3V* can be derived from Vin through a suitable voltage divider network
CI1
4 x 0.047 µF (high-frequency decoupling ceramic capacitor)
CI2
12 x 22 µF Ceramic
CI3
4 x 470 µF (polymer or electrolytic)
CO1
4 x 0.047 µF (high-frequency decoupling ceramiccapacitor)
CO2
12 x 47 µF, Ceramic
CO3
7 x 1000 µF
RTune
2460Ω,
RTrim
5.9KΩ
Note: The DATA, CLK and SMBALRT pins do not have any pull-up resistors inside the module. Typically, the PMBus master controller
will have pull-up resistors as well as provide the driving source for these signals.
If running the simulation at ge.transim.com remember to use bin ‘a’ parameters to determine the Loop
Stability, and bin ‘b’ parameters to determine the transient response.
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 35
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Mechanical Outline (SMT)
Dimensions are in millimeters and (inches).
Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated]
x.xx mm 0.25 mm (x.xxx in 0.010 in.)
BOTTOM VIEW
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 36
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Recommended SMT Pad Layout
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
August 24, 2020
FUNCTION
VOUT
VOUT
GND
VOUT
VOUT
GND
VOUT
VOUT
GND
VOUT
VOUT
GND
GND
SYNC
PIN
15
16
17
18
19
20
21
22
23
24
25
26
27
28
FUNCTION
PWR_GOOD
RTUNE
TRIM
SEQ
SIG_GND
VS+
VSGND
VIN
GND
VIN
GND
VIN
GND
PIN
29
30
31
32
33
34
35
36
37
38
FUNCTION
VIN
N/A
SHARE/NC
ON/OFF
SMBALERT#
DATA
CLK
ADDR0
ADDR1
GND
©2017 General Electric Company. All rights reserved.
Page 37
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Mechanical Outline (Through hole)
Dimensions are in millimeters and (inches).
Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated]
x.xx mm 0.25 mm (x.xxx in 0.010 in.)
BOTTOM VIEW
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 38
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Recommended Through-hole Layout
Note: In the Through-Hole version of the TJT120, pins 1-13, 22-29 and 38 are Through-Hole pins, pins 14-21, 30-37 are SMT pins. The
drawing above shows the recommended layout as a combination of holes in the PWB to accommodate the Through-Hole pins and
pads on the top layer to accommodate the SMT pins.
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FUNCTION
VOUT
VOUT
GND
VOUT
VOUT
GND
VOUT
VOUT
GND
VOUT
VOUT
GND
GND
SYNC
PIN
15
16
17
18
19
20
21
22
23
24
25
26
27
28
FUNCTION
PWR_GOOD
RTUNE
TRIM
SEQ
SIG_GND*
VS+
VSGND
VIN
GND
VIN
GND
VIN
GND
PIN
29
30
31
32
33
34
35
36
37
38
FUNCTION
VIN
N/A
SHARE/NC
ON/OFF
SMBALERT#
DATA
CLK
ADDR0
ADDR1
GND
*Do not connect SIG_GND to any other GND paths. It needs to be kept separate from other
grounds on the board external to the module
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 39
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Packaging Details
The 120A TeraDLynxTM modules are supplied in trays. Modules are shipped in quantities of 12 modules per layer, 24 per box.
34.00±0.5*
All Dimensions are in millimeters. All radius unspecified are R2.0mm. All angles unspecified are 5°.
* Unit datecodes prior to 1802 will have the older taller tray with a height of
34.00±0.5 as indicated
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 40
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
7Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Pick and Place
The 120A TeraDLynxTM modules use an open frame
construction and are designed for a fully automated assembly
process. The modules are fitted with a label designed to
provide a large surface area for pick and place operations.
The label meets all the requirements for surface mount
processing, as well as safety standards, and is able to
withstand reflow temperatures of up to 300oC. The label also
carries product information such as product code, serial
number and the location of manufacture.
Nozzle Recommendations
The module weight has been kept to a minimum by using
open frame construction. Variables such as nozzle size, tip
style, vacuum pressure and placement speed should be
considered to optimize this process. The minimum
recommended inside nozzle diameter for reliable operation is
15mm. The maximum nozzle outer diameter, which will safely
fit within the allowable component spacing, is 22 mm.
Bottom Side / First Side Assembly
This module is not recommended for assembly on the bottom
side of a customer board. If such an assembly is attempted,
components may fall off the module during the second reflow
process.
Lead Free Soldering
The modules are lead-free (Pb-free) and RoHS compliant and
fully compatible in a Pb-free soldering process. Failure to
observe the instructions below may result in the failure of or
cause damage to the modules and can adversely affect longterm reliability.
broken, the floor life of the product at conditions of 30°C
and 60% relative humidity varies according to the MSL rating
(see J-STD-033A). The shelf life for dry packed SMT packages
will be a minimum of 12 months from the bag seal date, when
stored at the following conditions: < 40° C, < 90% relative
humidity.
Peak Temp. 240-245°C
Temp
Surface Mount Information
Ramp down
max. 4°C/Sec
217°C
200°C
Time Limited 90 Sec.
above 217°C
150°C
Preheat time
100-150 Sec.
Ramp up
max. 3°C/Sec
25°C
Time
Figure 39. Recommended linear reflow profile using
Sn/Ag/Cu solder.
Post Solder Cleaning and Drying Considerations
Post solder cleaning is usually the final circuit-board assembly
process prior to electrical board testing. The result of
inadequate cleaning and drying can affect both the reliability
of a power module and the testability of the finished
circuit-board assembly. For guidance on appropriate
soldering, cleaning and drying procedures, refer to Board
Mounted Power Modules: Soldering and Cleaning Application
Note (AN04-001).
Pb-free Reflow Profile
Through Hole Information
Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for Nonhermetic
Solid State Surface Mount Devices) for both Pb-free solder
profiles and MSL classification procedures. This standard
provides a recommended forced-air-convection reflow profile
based on the volume and thickness of the package (table 4-2).
The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The
recommended linear reflow profile using Sn/Ag/Cu solder is
shown in Fig. 40. Soldering outside of the recommended
profile requires testing to verify results and performance.
The 120A TeraDLynxTM modules are lead-free (Pb-free) and
RoHS compliant and fully compatible in an Pb-free soldering
process. For the through-hole application, it is recommended
that the modules are assembled in the pin and paste reflow
process, not in the wave solder process. Failure to observe the
instructions below may result in the failure of or cause
damage to the modules and can adversely affect long-term
reliability.
MSL Rating
The 120A TeraDLynxTM modules have a MSL rating of 3.
Storage and Handling
The recommended storage environment and handling
procedures for moisture-sensitive surface mount packages is
detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and
Use of Moisture/Reflow Sensitive Surface Mount Devices).
Moisture barrier bags (MBB) with desiccant are required for
MSL ratings of 2 or greater. These sealed packages should not
be broken until time of use. Once the original package is
August 24, 2020
©2017 General Electric Company. All rights reserved.
Page 41
GE
Data Sheet
120A TeraDLynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.6Vdc to 1.5Vdc output; 120A Output Current
Ordering Information
Please contact your GE Sales Representative for pricing, availability and optional features.
Table 5. Device Codes
Device Code
Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic
Interconnect
Comcodes
TJT120A0X3Z#
7 – 14Vdc
0.6 – 1.5 Vdc
120A
Negative
TH
150043982
TJT120A0X43Z#
7 – 14Vdc
0.6 – 1.5 Vdc
120A
Positive
TH
150049601
TJT120A0X3-SZ#
7 – 14Vdc
0.6 – 1.5 Vdc
120A
Negative
SMT
150041745
TJT120A0X43-SZ#
7 – 14Vdc
-Z refers to RoHS compliant parts
0.6 – 1.5 Vdc
120A
Positive
SMT
150049603
#TJT120A0X3-SZ,
TJT120A0X3Z, TJT120A0X43-SZ, and TJT120A0X43Z are End of Life (EOL). Last Time Buy
September 30, 2020. Orders after September 30, 2020 will continue to be accepted until supplies last.
Table 6. Coding Scheme
Package
Identifier
Family
Sequencing
Option
Output
current
Output
voltage
T
J
T
120A0
X
P=Pico
J = DLynx
ΙΙ
T=with EZ
Sequence
120A
U=Micro
M=Mega
G=Giga
T=Tera
X=without
sequencing
On/Off
logic
Remote
Sense
3
X=
4 = positive
3=
programm
Remote
No entry =
able output
Sense
negative
Options
ROHS Compliance
-SR
-H
Z
S = Surface
Mount
Extra Ground
Pins
Z = ROHS6
R = Tape &
Reel
No entry =
Through hole
ABB Power Electronics Inc.’s digital non-isolated DC-DC products may be covered by one or more of the following patents licensed from Bel Power Solutions, Inc.: US20040246754, US2004090219A1,
US2004093533A1, US2004123164A1, US2004123167A1, US2004178780A1, US2004179382A1, US20050200344, US20050223252, US2005289373A1, US20060061214, US2006015616A1, US20060174145,
US20070226526, US20070234095, US20070240000, US20080052551, US20080072080, US20080186006, US6741099, US6788036, US6936999, US6949916, US7000125, US7049798, US7068021,
US7080265, US7249267, US7266709, US7315156, US7372682, US7373527, US7394445, US7456617, US7459892, US7493504, US7526660.
Outside the US Bel Power Solutions, Inc. licensed technology is protected by patents: AU3287379AA, AU3287437AA, AU3290643AA, AU3291357AA, CN10371856C, CN1045261OC, CN10458656C,
CN10459360C, CN10465848C, CN11069332A, CN11124619A, CN11346682A, CN1685299A, CN1685459A, CN1685582A, CN1685583A, CN1698023A, CN1802619A, EP1561156A1, EP1561268A2,
EP1576710A1, EP1576711A1, EP1604254A4, EP1604264A4, EP1714369A2, EP1745536A4, EP1769382A4, EP1899789A2, EP1984801A2, W004044718A1, W004045042A3, W004045042C1, W004062061
A1, W004062062A1, W004070780A3, W004084390A3, W004084391A3, W005079227A3, W005081771A3, W006019569A3, W02007001584A3, W02007094935A3
Contact Us
For more information, call us at
USA/Canada:
+1 888 546 3243, or +1 972 244 9288
Asia-Pacific:
+86-21-53899666
Europe, Middle-East and Africa:
+49.89.878067-280
Go.ABB/Industrial
GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no
liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or
information.
August 24, 2020
©2016 General Electric Company. All International rights reserved.
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