GE
Datasheet
2 × 12A Digital Dual Output MicroDLynxTM: Non-Isolated DC-DC Power
Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Features
RoHS Compliant
Applications
▪
Distributed power architectures
▪
Intermediate bus voltage applications
▪
Telecommunications equipment
▪
Servers and storage applications
▪
Networking equipment
▪
Industrial equipment
Vin+
VIN1
Vout+
MODULE
CI3
CI2
CI1
ON/OFF1
PGND
ON/OFF2
TRIM2
Compliant to REACH Directive (EC) No 1907/2006
▪
Compliant to IPC-9592 (September 2008), Category 2, Class II
▪
Wide Input voltage range (4.5Vdc-14.4Vdc)
▪
Each Output voltage programmable from 0.6Vdc to 5.5Vdc via
external resistor. Digitally adjustable down to 0.51Vdc
▪
Small size: 20.32 mm x 11.43 mm x 8.5 mm
(0.8 in x 0.45 in x 0.335 in)
▪
Wide operating temperature range -40°C to 85°C
▪
Digital interface through the PMBusTM # protocol
▪
Tunable LoopTM to optimize dynamic output voltage response
▪
Power Good signal for each output
▪
Fixed switching frequency with capability of external
synchronization
▪
180° Out-of-phase to reduce input ripple
▪
Output overcurrent protection (non-latching)
▪
Output Overvoltage protection
▪
Over temperature protection
▪
Ability to sink and source current
▪
Start up into Pre-biased output
▪
Cost efficient open frame design
CO2
RTrim1
▪
RADDR0
▪
GND
RTrim2
PGOOD2
▪
CTUNE2
SIG_GND
PGND
Compatible in a Pb-free or SnPb reflow environment
Remote On/Off
CO1
RADDR1
▪
▪
SYNC
CLK
TRIM1
DATA
ADDR0
SMBALRT#
ADDR1
Compliant to RoHS Directive 2011/65/EU and amended
Directive (EU) 2015/863
RTUNE1
VOUT1
VS+1
PGOOD1
▪
ANSI/UL* 62368-1 and CAN/CSA† C22.2 No. 62368-1 Recognized,
DIN VDE‡ 0868-1/A11:2017 (EN62368-1:2014/A11:2017)
ISO** 9001 and ISO 14001 certified manufacturing facilities
RTUNE2
CO3
CO4
CTUNE2
VS+2
VIN2
VOUT2
Description
The 2 × 12A Digital Dual MicroDlynxTM power modules are non-isolated dc-dc converters that can deliver up to 2 × 12A of output
current. These modules operate over a wide range of input voltage (VIN = 4.5Vdc-14.4Vdc) and provide precisely regulated output
voltages from 0.51Vdc to 5.5Vdc, programmable via an external resistor and PMBus control. Features include a digital interface using
the PMBus protocol, remote On/Off, adjustable output voltage, over current and over temperature protection. The PMBus interface
supports a range of commands to both control and monitor the module. The module also includes the Tunable Loop TM feature that
allows the user to optimize 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)
October 28, 2020
©2016 General Electric Company. All rights reserved.
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only,
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 data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter
Device
Symbol
Min
Max
Unit
Input Voltage
All
VIN1 and VIN2
-0.3
15
V
Continuous
VS+1, VS+2, SMBALERT#
All
-0.3
7
V
CLK, DATA, SYNC,
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
Operating Input Voltage
Maximum Input Current
Device
Symbol
Min
Typ
Max
Unit
All
VIN1 and VIN2
4.5
⎯
14.4
Vdc
All
IIN1,max &
IIN2,max
23
Adc
(VIN=4.5V to 14.4V, IO=IO, max )
VO,set = 0.6 Vdc
Input No Load Current
(VIN = 12Vdc, IO = 0, module enabled)
VO,set = 5.5Vdc
IIN1,No load &
IIN2,No load
IIN,1No load &
IIN2,No load
72
mA
210
mA
14
mA
Input Stand-by Current
(VIN = 12Vdc, module disabled)
All
IIN1,stand-by &
IIN2,stand-by
Inrush Transient
All
I12t & I22t
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN =4.5 to 14V,
IO= IOmax ; See Test Configurations)
All
Both Inputs
25
mAp-p
Input Ripple Rejection (120Hz)
All
Both Inputs
-68
dB
October 28, 2020
©2016 General Electric Company. All rights reserved.
1
A2s
Page 2
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Electrical Specifications (continued)
Parameter
Device
Output Voltage Set-point (with 0.1% tolerance for external
resistor used to set output voltage)
Output Voltage (Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range (selected by an external resistor)
(Some output voltages may not be possible depending on the
input voltage – see Feature Descriptions Section)
*0.51V possible through PMBus command
All
All
Symbol
VO1, set &
VO2, set
Vo1, set & VO2,
set
Min
-1.0
-3.0
All
VO1 & VO2
PMBus Adjustable Output Voltage Range
All
VO1,adj, VO2,adj
-15
PMBus Output Voltage Adjustment Step Size
All
Both outputs
0.4
Remote Sense Range
All
Both outputs
Output Regulation (for VO ≥ 2.5Vdc)
Typ
Max
+1.0
⎯
0.6*
0
+3.0
Unit
% VO,
set
% VO,
set
5.5
Vdc
+10
%VO,set
%VO,set
0.5
Vdc
Both Outputs
Line (VIN=VIN, min to VIN, max)
All
Both Outputs
⎯
+0.4
% VO, set
Load (IO=IO, min to IO, max)
All
Both Outputs
⎯
10
mV
Line (VIN=VIN, min to VIN, max)
All
Both Outputs
⎯
5
mV
Load (IO=IO, min to IO, max)
All
Both Outputs
⎯
10
mV
Temperature (Tref=TA, min to TA, max)
All
Both Outputs
⎯
0.4
% VO, set
50
100
mVpk-pk
20
38
mVrms
⎯
2×47
μF
Output Regulation (for VO < 2.5Vdc)
Output Ripple and Noise on nominal output at 25°C
(VIN=VIN, nom and IO=IO, min to IO, max Co = 2×0.1 + 2×47uF per
output)
Peak-to-Peak (5Hz to 20MHz bandwidth)
All
RMS (5Hz to 20MHz bandwidth)
All
External
⎯
Capacitance1
Without the Tunable LoopTM
ESR ≥ 1 mΩ
All
CO, max
ESR ≥ 0.15 mΩ
All
CO, max
⎯
1000
μF
ESR ≥ 10 mΩ
All
CO, max
⎯
5000
μF
Output Current (in either sink or source mode)
All
Io
12x2
Adc
Output Current Limit Inception (Hiccup Mode)
(current limit does not operate in sink mode)
All
IO, lim
150
% Io,max
Output Short-Circuit Current
All
IO1, s/c , IO1, s/c
6
Arms
VO,set = 0.6Vdc
η 1, η 2
79
%
VIN= 12Vdc, TA=25°C
VO, set = 1.2Vdc
η 1, η 2
88
%
IO=IO, max , VO= VO,set
VO,set = 1.8Vdc
η 1, η 2
91
%
VO,set = 2.5Vdc
η 1, η 2
93
%
VO, set = 3.3Vdc
η 1, η 2
94
%
VO,set = 5.0Vdc
η 1, η 2
95
%
With the Tunable
2×47
LoopTM
0
(VO≤250mV) ( Hiccup Mode )
Efficiency
All
fsw
500
⎯
⎯
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.
kHz
October 28, 2020
Page 3
Switching Frequency
1 External
©2016 General Electric Company. All rights reserved.
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Electrical Specifications (continued)
Parameter
Device
Frequency Synchronization
Symbol
Min
Typ
Max
Unit
All
Synch Frequency (2 x fswitch)
1000
Synchronization Frequency Range
All
High-Level Input Voltage
All
VIH
-5%
Low-Level Input Voltage
All
VIL
Minimum Pulse Width, SYNC
All
tSYNC
Maximum SYNC rise time
All
tSYNC_SH
kHz
+5%
2.0
kHz
V
0.4
100
V
ns
100
ns
General Specifications
Parameter
Device
Calculated MTBF (IO=0.8IO, max, TA=40°C) Telecordia Issue 3 Method 1 Case 3
Min
Typ
All
75,767,425
⎯
Weight
Max
4.5 (0.16)
Unit
Hours
⎯
g (oz.)
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
Input High Current
All
IIH1, IIH2
―
―
1
mA
Input High Voltage
All
VIH1, VIH2
2
―
VIN, max
Vdc
All
All
IIL1, IIL2
VIL1, VIL2
―
-0.2
―
―
20
0.6
μA
Vdc
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)
All
Tdelay1,
Tdelay2
―
2
―
msec
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)
All
Tdelay1,
Tdelay2
―
800
―
μsec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
All
―
6
―
msec
3.0
% VO, set
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)
Logic Low (Module ON)
Input low Current
Input Low Voltage
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Output voltage overshoot (TA = 25oC
VIN= VIN, min to VIN, max,IO = IO, min to IO, max)
With or without maximum external capacitance
October 28, 2020
Trise1,
Trise2
Both
Outputs
©2016 General Electric Company. All rights reserved.
Page 4
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Feature Specifications (cont.)
Parameter
Device
Symbol
Min
Typ
Max
Units
Over Temperature Protection
(See Thermal Considerations section)
All
Tref
135
°C
PMBus Over Temperature Warning Threshold*
All
TWARN
125
°C
Turn-on Threshold
All
Both Inputs
4.5
Vdc
Turn-off Threshold
All
Both Inputs
4.25
Vdc
Hysteresis
All
Both Inputs
0.15
PMBus Adjustable Input Under Voltage Lockout Thresholds
All
Both Inputs
4
Resolution of Adjustable Input Under Voltage Threshold
All
Both Inputs
Overvoltage threshold for PGOOD ON
All
Both Outputs
108.33
%VO, set
Overvoltage threshold for PGOOD OFF
All
Both Outputs
112.5
%VO, set
Undervoltage threshold for PGOOD ON
All
Both Outputs
91.67
%VO, set
Undervoltage threshold for PGOOD OFF
All
Both Outputs
87.5
%VO, set
Pulldown resistance of PGOOD pin
All
Both Outputs
40
Sink current capability into PGOOD pin
All
Both Outputs
Input Undervoltage Lockout
0.2
Vdc
14
Vdc
250
mV
PGOOD (Power Good)
Signal Interface Open Drain, Vsupply 5VDC
70
5
mA
* Over temperature Warning – Warning may not activate before alarm and unit may shutdown before warning
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 5
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput 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
Input High Voltage (CLK, DATA)
VIH
2.1
Input Low Voltage (CLK, DATA)
VIL
Input high level current (CLK, DATA)
IIH
Input low level current (CLK, DATA)
IIL
Typ
Max
Unit
PMBus Signal Interface Characteristics
Output Low Voltage (CLK, DATA, SMBALERT#)
IOUT=2mA
VOL
Output high level open drain leakage current (DATA,
SMBALERT#)
VOUT=3.6V
IOH
Pin capacitance
V
-10
10
μA
-10
10
mA
0.4?
V
10
μA
1
pF
400
kHz
0
CO
PMBus Operating frequency range
V
0.8
0
Slave Mode
FPMB
10
Receive Mode
Transmit Mode
tHD:DAT
0
300
ns
tSU:DAT
250
ns
Output current measurement range
IRNG
0
Output current measurement gain accuracy (at 25°C)
IACC
Data hold time
Data setup time
Measurement System Characteristics
VOUT measurement range
VOUT(rng)
VOUT measurement accuracy
October 28, 2020
©2016 General Electric Company. All rights reserved.
18
A
±1
A
0.5
5.8
V
-2
2
%
Page 6
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynxTM at 0.6Vo and 25oC.
90
12
85
10
Vin=4.5V
OUTPUT CURRENT, Io (A)
EFFICIENCY, (%)
80
75
70
Vin=14V
Vin=12V
65
60
55
Derating curve applies
to Both Outputs
8
6
4
2
0
50
2x0
2x2
2x4
2x6
2x8
2x10
2x12
55
60
85
OUTPUT VOLTAGE
VO (20mV/div)
IO (A) (5Adiv)
OUTPUT CURRENT,
OUTPUT VOLTAGES
VO (V) (30mV/div)
OUTPUT VOLTAGES
VIN (V) (10V/div)
INPUT VOLTAGE
Figure 4. Transient Response to Dynamic Load Change from 50%
to 100% on one output at 12Vin, Cout=2x47uF+7x330uF,
CTune=12nF, RTune=300Ω
VO (V) (200mV/div)
VON/OFF (V) (5V/div)
VO (V) (200mV/div)
ON/OFF VOLTAGE
80
TIME, t (20s /div)
Figure 3. Typical output ripple and noise (CO= 2×0.1uF+2×47uF
ceramic, VIN = 12V, Io = Io1,max, Io2,max, ).
OUTPUT VOLTAGES
75
Figure 2. Derating Output Current versus Ambient Temperature
and Airflow.
TIME, t (1s/div)
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 5. Typical Start-up Using On/Off Voltage (Vin=12V, Io =
Io1,max, Io2,max,).
October 28, 2020
70
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current.
65
Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io1,max, Io2,max,).
©2016 General Electric Company. All rights reserved.
Page 7
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynxTM at 1.2Vo and 25oC.
95
12
90
10
OUTPUT CURRENT, Io (A)
Vin=4.5V
85
EFFICIENCY, (%)
80
Vin=14V
75
Vin=12V
70
65
60
55
2x0
2x2
2x4
2x6
2x8
2x10
2x12
8
0.5m/s
(100LFM)
6
4
2
55
60
65
80
85
OUTPUT CURRENT,
VO (20mV/div)
VO (V) (30mV/div)
OUTPUT VOLTAGE
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (1s/div)
TIME, t (20s /div)
OUTPUT VOLTAGES
VO (V) (500mV/div)
VIN (V) (10V/div)
INPUT VOLTAGE
Figure 10. Transient Response to Dynamic Load Change on one
output from 50% to 100% at 12Vin, Cout=3x47uF+3x330uF,
CTune=2700pF & RTune=300Ω
VO (V) (500mV/div)
VON/OFF (V) (5V/div)
Figure 9. Typical output ripple and noise (CO= 2×0.1uF+2×47uF
ceramic, VIN = 12V, Io = Io1,max, Io2,max ).
ON/OFF VOLTAGE
75
IO (A) (5Adiv)
Figure 7. Converter Efficiency versus Output Current.
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 1. Typical Start-up Using On/Off Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
October 28, 2020
70
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT, IO (A)
OUTPUT VOLTAGES
NC
0
50
OUTPUT VOLTAGES
Derating curve applies
to Both Outputs
Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
©2016 General Electric Company. All rights reserved.
Page 8
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynxTM at 1.8Vo and 25oC.
100
14
95
12
EFFICIENCY, (%)
85
Vin=12V
OUTPUT CURRENT, Io (A)
Vin=4.5V
90
Vin=14V
80
75
10
1.0m/s
(200LFM)
Derating curve applies
to Both Outputs
0.5m/s
(100LFM)
6
4
2
0
70
2x0
2x2
2x4
2x6
2x8
2x10
2x12
55
OUTPUT VOLTAGE
VO (20mV/div)
IO (A) (5Adiv)
TIME, t (1s/div)
OUTPUT VOLTAGES
VIN (V) (10V/div)
INPUT VOLTAGE
Figure 16. Transient Response to Dynamic Load Change on one
output from 50% to 100% at 12Vin, Cout = 3x47uF+2x330uF,
CTune = 1800pF & RTune = 300Ω
VO (V) (500mV/div)
VON/OFF (V) (5V/div)
VO (V) (500mV/div)
ON/OFF VOLTAGE
85
TIME, t (20s /div)
Figure 15. Typical output ripple and noise (CO= 2×0.1uF+2×47uF
ceramic, VIN = 12V, Io = Io1,max, Io2,max).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
October 28, 2020
75
Figure 14. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT CURRENT,
VO (V) (30mV/div)
OUTPUT VOLTAGES
Figure 13. Converter Efficiency versus Output Current.
65
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT, IO (A)
OUTPUT VOLTAGES
NC
8
Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
©2016 General Electric Company. All rights reserved.
Page 9
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynxTM at 2.5Vo and 25oC.
100
12
95
10
EFFICIENCY, (%)
85
Vin=12V
OUTPUT CURRENT, Io (A)
Vin=4.5V
90
Vin=14V
80
75
8
NC
Derating curve applies
to Both Outputs
6
4
1m/s
(200LFM)
2
0
70
2x0
2x2
2x4
2x6
2x8
2x10
2x12
55
OUTPUT VOLTAGE
VO (50mV/div)
IO (A) (5Adiv)
TIME, t (1s/div)
OUTPUT VOLTAGES
VIN (V) (10V/div)
INPUT VOLTAGE
Figure 22. Transient Response to Dynamic Load Change on one
output from 50% to 100% at 12Vin, Cout=3x47uF+2x330uF,
CTune=1500pF & RTune = 300Ω
VO (V) (1V/div)
VON/OFF (V) (5V/div)
VO (V) (1V/div)
ON/OFF VOLTAGE
85
TIME, t (20s /div)
Figure 21. Typical output ripple and noise (CO= 2x0.1uF+2x47uF
ceramic, VIN = 12V, Io = Io1,max, Io2,max).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
October 28, 2020
75
Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT CURRENT,
VO (V) (30mV/div)
OUTPUT VOLTAGES
Figure 19. Converter Efficiency versus Output Current.
65
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT, IO (A)
OUTPUT VOLTAGES
0.5m/s
(100LFM)
Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
©2016 General Electric Company. All rights reserved.
Page 10
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynxTM at 3.3Vo and 25oC.
100
12
95
OUTPUT CURRENT, Io (A)
EFFICIENCY, (%)
NC
10
Vin=4.5V
90
Vin=14V
Vin=12V
85
80
75
8
Derating curve applies
to Both Outputs
0.5m/s
(100LFM)
4
2
1.5m/s
(300LFM)
0
70
2x0
2x2
2x4
2x6
2x8
2x10
55
2x12
OUTPUT VOLTAGE
VO (V) (50mV/div)
OUTPUT CURRENT,
IO (A) (5Adiv)
OUTPUT VOLTAGES
VO (V) (30mV/div)
OUTPUT VOLTAGES
VIN (V) (10V/div)
INPUT VOLTAGE
Figure 28 Transient Response to Dynamic Load Change on one
output from 50% to 100% at 12Vin, Cout=3x47uF+1x330uF,
CTune = 1200pF & RTune = 300Ω
VO (V) (1V/div)
VON/OFF (V) (5V/div)
VO (V) (1V/div)
ON/OFF VOLTAGE
85
TIME, t (20s /div)
Figure 27. Typical output ripple and noise (CO= 2x0.1uF+2x47uF
ceramic, VIN = 12V, Io = Io1,max, Io2,max).
OUTPUT VOLTAGES
75
Figure 26. Derating Output Current versus Ambient Temperature
and Airflow.
TIME, t (1s/div)
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
October 28, 2020
65
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT, IO (A)
Figure 25. Converter Efficiency versus Output Current.
1m/s
(200LFM)
6
Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
©2016 General Electric Company. All rights reserved.
Page 11
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Characteristic Curves
The following figures provide typical characteristics for the 2 × 12A Digital Dual MicroDlynxTM at 5Vo and 25oC.
14
100
3.0m/s
(600LFM)
12
95
OUTPUT CURRENT, Io (A)
Vin=7V
EFFICIENCY, (%)
90
Vin=14V
Vin=12V
85
80
75
10
NC
8
6
Derating curve applies
to Both Outputs
4
0.5m/s
(100LFM)
2
2x0
2x2
2x4
2x6
2x8
2x10
2x12
45
OUTPUT VOLTAGE
VO (50mV/div)
IO (A) (5Adiv)
TIME, t (1s/div)
75
85
TIME, t (20s /div)
VO (V) (2V/div)
OUTPUT VOLTAGES
VIN (V) (10V/div)
INPUT VOLTAGE
Figure 34. Transient Response to Dynamic Load Change on one
output from 50% to 100% at 12Vin, Cout=6x47uF, CTune=470pF
& RTune=300Ω
VO (V) (2V/div)
VON/OFF (V) (5V/div)
Figure 33. Typical output ripple and noise (CO = 2×0.1uF +
2×47uF ceramic, VIN = 12V, Io = Io1,max, Io2,max).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 35. Typical Start-up Using On/Off Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
October 28, 2020
65
Figure 32. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT CURRENT,
VO (V) (30mV/div)
OUTPUT VOLTAGES
Figure 31. Converter Efficiency versus Output Current.
55
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT, IO (A)
ON/OFF VOLTAGE
2m/s
(400LFM)
0
70
OUTPUT VOLTAGES
1.5m/s
(300LFM)
1m/s
(200LFM)
Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io1,max, Io2,max).
©2016 General Electric Company. All rights reserved.
Page 12
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
80
Input Filtering
70
3x47uF each output
The2 × 12A Digital Dual MicroDlynxTM 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 pin of the module, to minimize input ripple voltage
and ensure module stability.
60
4x47uF each output
Ripple (mVp-p)
Design Considerations
To minimize input voltage ripple, ceramic capacitors are
recommended at the input of the module. Figure 37 shows
the input ripple voltage for various output voltages at2 x
12A of load current with 2x22 µF or 3x22 µF ceramic
capacitors and an input of 12V.
200
50
40
30
20
10
0
0.5
4x22uF
1.5
2.5
3.5
4.5
Output Voltage(Volts)
150
Figure 38. Output ripple voltage for various output voltages
with total external 4x47 µF, 6x47 µF or 8x47 µF ceramic
capacitors at the output (2 x 12A load). Input voltage is 12V.
100
Safety Considerations
6x22uF
Ripple (mVp-p)
2x47uF each output
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* 62368-1 and CAN/CSA+ C22.2 No. 62368-1
Recognized, DIN VDE 0868-1/A11:2017 (EN623681:2014/A11:2017)
50
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Output Voltage(Volts)
Figure 37. Input ripple voltage for various output voltages
with 4x22 µF or 6x22 µF ceramic capacitors at the input (2
x 12A 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 0.1 µF
ceramic and 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 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 fast-acting
fuse with a maximum rating of 30A (voltage rating 125Vac) in
the positive input lead. (Littelfuse 456 Series or equivalent)
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 38 provides output ripple information for
different external capacitance values at various Vo and a full
load current of2 x 12A. 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 be achieved by using
the Tunable LoopTM feature described later in this data sheet.
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 13
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Analog Feature Descriptions
Remote On/Off
Output 1
The 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 two ON/OFF
inputs:
•
•
•
DUAL OUTPUT MODULE
Rpullup
Module ON/OFF can be controlled only through the
analog interface (digital interface ON/OFF
commands are ignored)
Module ON/OFF can be 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.
+3.3V
+VIN
I
10K
47K
ENABLE1
22K
ON/OFF
Q1
+
Q3
V
ON/OFF
_
22K
GND
Output 2
DUAL OUTPUT MODULE
+3.3V
+VIN
Analog On/Off
The2 × 12A Digital Dual MicroDlynxTM power modules feature
an On/Off pin for remote On/Off operation. Two On/Off logic
options are available. In the Positive Logic On/Off option,
(device code suffix “4” – see Ordering Information), the
module turns ON during a logic High on the On/Off pin and
turns OFF during a logic Low. With the Negative Logic On/Off
option, (no device code suffix, 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. For
either On/Off logic option, leaving the On/Off pin
disconnected will turn the module ON when input voltage is
present.
For positive logic modules, the circuit configuration for using
the On/Off pin is shown in Figure 39. When the external
transistor is in the OFF state, the internal transistor Q1 is
turned ON, and the internal PWM Enable# signal(normally low)
is pulled low causing the module to be ON. When ext.
transistor is turned ON, the On/Off pin is pulled low, and the
internal PWM Enable# signal(normally low) is pulled high and
the module is OFF. For negative logic On/Off modules, the
circuit configuration is shown in Fig. 40. When external
transistor is in the OFF state, the On/Off pin is pulled high,
transistor Q1 is turned ON and the internal PWM Enable signal
is pulled low and the module is OFF. To turn the module ON,
the external transistor is turned ON pulling the On/Off pin low,
turning transistor Q1 OFF resulting in the PWM Enable pin
going high and the module turns ON
Rpullup
I
10K
47K
ENABLE2
22K
ON/OFF
Q2
+
Q4
V
ON/OFF
_
22K
GND
Figure 39. Circuit configuration for using positive On/Off
logic.
Output 1
DUAL OUTPUT MODULE
+3.3V
+VIN
Rpullup
I
47K
ENABLE1
ON/OFF1
22K
Q1
+
Q3
V
ON/OFF1
_
22K
GND
Digital On/Off
Please see the Digital Feature Descriptions section.
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 14
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Figure 41. Output Voltage vs. Input Voltage Set Point Area
plot showing limits where the output voltage can be set for
different input voltages.
Output 2
VIN1(+)
DUAL OUTPUT MODULE
+3.3V
+VIN
Rpullup
VO1(+)
VIN2(+)
VO2(+)
VS+1
VS+2
TRIM1
TRIM2
ON/OFF1
47K
ON/OFF2
I
ENABLE2
ON/OFF2
22K
LOAD
Rtrim2
Q2
Rtrim1
+
Q4
V
ON/OFF2
_
SIG_GND
22K
GND
GND
Caution – Do not connect SIG_GND to GND elsewhere in the
layout
Figure 40. Circuit configuration for using negative On/Off
logic.
Figure 42. Circuit configuration for programming output
voltage using an external resistor.
Monotonic Start-up and Shutdown
The module has monotonic start-up and shutdown behavior
for any combination of rated input voltage, output current
and operating temperature range.
Startup into Pre-biased Output
Without an external resistor between Trim and SIG_GND pins,
each output of the module will be 0.6Vdc.To calculate the
value of the trim resistor, Rtrim for a desired output voltage,
should be as per the following equation:
12
Rtrim =
k
(Vo − 0.6)
The module can start into a prebiased output on either or
both outputs as long as the prebias voltage is 0.5V less than
the set output voltage.
Rtrim is the external resistor in kΩ
Analog Output Voltage Programming
The voltage of each output can be programmed to any voltage
from 0.6dc to 5.5Vdc by connecting a resistor between the 2
Trims and SIG_GND pins of the module. Restrictions on the
output voltage set point depending on the input voltage are
shown in the Output Voltage vs. Input Voltage Set Point Area
plot in Fig. 41. The Upper Limit curve shows that for output
voltages lower than 1V, the input voltage must be lower than
the maximum of 14.4V. When the output voltage is trimmed
lower than 0.6V, then the max input voltage shall be reduced
by the same factor. Currently the max input voltage for
0.6Vout is 13V. The Lower Limit curve shows that for output
voltages higher than 0.6V, the input voltage needs to be larger
than the minimum of 4.5V.
Vo is the desired output voltage.
Table 1 provides Rtrim values required for some common
output voltages.
Table 1
VO, set (V)
0.6
0.9
1.0
1.2
1.5
1.8
2.5
3.3
5.0
16
Input Voltage (v)
14
Rtrim (KΩ)
Open
40
30
20
13.33
10
6.316
4.444
2.727
12
Upper
10
8
Digital Output Voltage Adjustment
6
Please see the Digital Feature Descriptions section.
4
Remote Sense
Lower
2
0
0.5
1
1.5
2
2.5
3
3.5
4
Output Voltage (V)
October 28, 2020
4.5
5
5.5
6
The power module has a Remote Sense feature to minimize
the effects of distribution losses by regulating the voltage
between the sense pins (VS+ and VS-) for each of the 2
outputs. The voltage drop between the sense pins and the
©2016 General Electric Company. All rights reserved.
Page 15
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
VOUT and GND pins of the module should not exceed 0.5V. If
there is an inductor being used on the module output, then
the tunable loop feature of the module should be used to
ensure module stability with the proposed sense point
location. If the simulation tools and loop feature of the
module are not being used, then the remote sense should
always be connected before the inductor. The sense trace
should also be kept away from potentially noisy areas of the
board
Overcurrent Protection
Analog Voltage Margining
Please see the Digital Feature Descriptions section.
Output voltage margining can be implemented in the module
by connecting a resistor, Rmargin-up, from the Trim pin to the
ground pin for margining-up the output voltage and by
connecting a resistor, Rmargin-down, from the Trim pin to output
pin for margining-down.
Figure 43 shows the circuit
configuration for output voltage margining.
The POL
Programming Tool, available at www.gecriticalpower.com in
the Embedded Power group, also calculates the values of
Rmargin-up and Rmargin-down for a specific output voltage and %
margin. Please consult your local GE technical representative
for additional details.
Overtemperature Protection
Vo1
Rmargin-down
MODULE
To provide protection in a fault (output overload) condition,
the unit is equipped with internal current-limiting circuitry on
both outputs and can endure current limiting continuously. At
the point of current-limit inception, the unit enters hiccup
mode. The unit operates normally once the output current is
brought back into its specified range.
Digital Adjustable Overcurrent Warning
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 135oC(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.
Digital Temperature Status via PMBus
Please see the Digital Feature Descriptions section.
Digitally Adjustable Output Over and Under Voltage
Protection
Please see the Digital Feature Descriptions section.
Input Undervoltage Lockout
Q2
Trim1
Rmargin-up
Rtrim1
At input voltages below the input undervoltage lockout limit,
the module operation 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.
Q1
SIG_GND
Digitally Adjustable Power Good Thresholds
Please see the Digital Feature Descriptions section.
Vo2
Synchronization
Rmargin-down
MODULE
Q4
Trim2
Rmargin-up
Rtrim1
Q3
The module switching frequency can be synchronized to a
signal with an external frequency within a specified range.
Synchronization can be done by using the external signal
applied to the SYNC pin of the module as shown in Fig. 45,
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. If synchronization is not being used,
connect the SYNC pin to SIG_GND.
SIG_GND
MODULE
SYNC
Figure 43. Circuit Configuration for margining Output
voltage.
+
Digital Output Voltage Margining
─
Please see the Digital Feature Descriptions section.
October 28, 2020
©2016 General Electric Company. All rights reserved.
SIG_GND
Page 16
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Figure 45. External source connections to synchronize
switching frequency of the module.
the module, as shown in Fig. 47. This R-C allows the user to
externally adjust the voltage loop feedback compensation of
the module.
Measuring Output Current, Output Voltage and
Temperature
Please see the Digital Feature Descriptions section.
Tunable LoopTM
The module has a feature that optimizes transient response of
the module called Tunable LoopTM.
External capacitors are usually added to the output of the
module for two reasons: to reduce output ripple and noise
(see Figure 38) 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 Tunable LoopTM allows the user to externally adjust the
voltage control loop to match the filter network connected to
the output of the module. The Tunable LoopTM is implemented
by connecting a series R-C between the VS+ and TRIM pins of
Recommended values of RTUNE and CTUNE for different output
capacitor combinations are given in Table 2. Table 2 shows the
recommended values of RTUNE and CTUNE for different values of
ceramic output capacitors up to 1000uF that might be needed
for an application to meet output ripple and noise
requirements. Selecting RTUNE and CTUNE according to Table 2
will ensure stable operation of the module.
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 and
CTUNE in order to meet 2% output voltage deviation limits for
some common output voltages in the presence of a 6A to 12A
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 R-C to tune the module for
best transient performance and stable operation for other
output capacitance values.
VOUT1
VS+1
RTune
MODULE
Table 2. General recommended values of of RTUNE and CTUNE
for Vin=12V and various external ceramic capacitor
combinations.
CO
CTune
TRIM1
RTrim
SIG_GND
GND
Co
3x47F
4x47F
6x47F
10x47F
20x47F
RTUNE
300
300
300
300
300
CTUNE
220pF
330pF
1000pF
1800pF
3900pF
Table 3. Recommended values of RTUNE and CTUNE to obtain
transient deviation of 2% of Vout for a 6A step load with
Vin=12V.
VOUT2
VS+2
RTune
MODULE
CO
Vo
5V
Co
6x47F
RTUNE
300
CTUNE
470pF
V
84mV
CTune
TRIM2
RTrim
3.3V
2.5V
1.8V
1.2V
0.6V
3x47F + 3x47F + 3x47F + 3x47F + 2x47F +
330F 2x330F 2x330F 3x330F 7x330F
Polymer Polymer Polymer Polymer Polymer
300
300
300
300
300
1200pF 1500pF 1800pF
39mV
30mV
27mV
2700pF
12nF
20mV
10mV
Note: The capacitors used in the Tunable Loop tables are 47
μF/2 mΩ ESR ceramic and 330 μF/12 mΩ ESR polymer
capacitors.
SIG_GND
GND
Figure. 47. Circuit diagram showing connection of RTUNE and
CTUNE to tune the control loop of the module.
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 17
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
specifications 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 4 (1% tolerance 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.
Digital Feature Descriptions
PMBus Interface Capability
The 2 × 12A Digital Dual MicroDlynxTM 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 6 for a list of the specific commands supported).
Most module parameters can be programmed using PMBus
and stored as defaults for later use.
Table 4
Digit
0
1
2
3
4
5
6
7
All communication over the module PMBus interface must
support 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 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 6 for which command parameters can
be saved to non-volatile storage).
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 Low Power
DC specifications in section 3.1.2. The complete SMBus
specification is available from the SMBus web site, smbus.org.
ADDR1
PMBus Data Format
ADDR0
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
Data Byte Low
7 6 5 4 3
2 1 0 7 6 5 4 3 2 1 0
Exponent
Mantissa
MSB
RADDR0
RADDR1
SIG_GND
Figure 48. Circuit showing connection of resistors used to set
the PMBus address of the module.
PAGE
Both the outputs of the module can be configured, controlled
and monitored through only one physical address
MSB
The value is of the number is then given by
Value = Mantissa x 2 Exponent
PMBus Addressing
The power module can be addressed through the PMBus
using a device address. The module has 64 possible addresses
(0 to 63 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
October 28, 2020
Resistor Value (KΩ)
11
18.7
27.4
38.3
53.6
82.5
127
187
Format
Bit Position
Access
Function
Default
Value
7
r/w
PA
6
r
X
Unsigned Binary
5
4
3 2
r
r
r
r
X
X
X X
1
r
X
0
r/w
P0
0
X
X
X
0
X
X
X
PAGE Command Truth Table
PA
P0
Logic Results
0
0
All Commands address first output
0
1
All Commands address second output
1
0
Illegal input, Ignore write
©2016 General Electric Company. All rights reserved.
Page 18
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
1
1
All Commands address both outputs
If PAGE=11, then any read commands affect the first channel.
Any value to ready-only registers is ignored.
Bit Value
Operation (01h)
This is a paged register. The OPERATION command can be use
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
POL
1
0
r
CPA
0
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
October 28, 2020
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.
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
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 can be adjusted in the module via
PMBus. When setting this parameter, make sure that the
charging current for output capacitors can be delivered by the
module in addition to any load current to avoid nuisance
tripping of the overcurrent protection circuitry during startup.
The TON_RISE command sets the rise time in ms, and allows
choosing soft start times between 600μs and 9ms, with
possible values listed in Table 5. Note that the exponent is
fixed at -4 (decimal) and the upper two bits of the mantissa
are also fixed at 0.
Table 5
Rise Time
600μs
900μs
1.2ms
1.8ms
2.7ms
4.2ms
6.0ms
9.0ms
Exponent
11100
11100
11100
11100
11100
11100
11100
11100
Mantissa
00000001010
00000001110
00000010011
00000011101
00000101011
00001000011
00001100000
00010010000
Output Voltage Adjustment Using the PMBus
The VREF_TRIM parameter is important for a number of
PMBus commands related to output voltage trimming, and
margining. Each of the 2 output voltages of the module can be
set as the combination of the voltage divider formed by RTrim
and a 20kΩ upper divider resistor inside the module, and the
internal reference voltage of the module. The reference
voltage VREF is be nominally set at 600mV, and the output
regulation voltage is then given by
20000 + RTrim1
VOUT.1 =
VREF
RTrim1
©2016 General Electric Company. All rights reserved.
Page 19
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
20000 + RTrim 2
VOUT.2 =
VREF
RTrim 2
Hence the module output voltages is dependent on the value
of RTrim1 and Rtrim2 which are connected external to the
module.
The VREF_TRIM parameter is used to apply a fixed offset
voltage to the reference voltage canbe specified using the
“Linear” format and two bytes. The exponent is fixed at –9
(decimal). The resolution of the adjustment is 7 bits, with a
resulting step size of approximately 0.4%. The maximum trim
range is -20% to +10% of the nominal reference
voltage(600mV) in 2mV steps. Possible values range from 120mV to +60mV. The exception is at 0.6Vout where the
allowable trim range is only -90mV to +60mV to prevent the
module from operating at lower than 0.51Vdc. When
trimming the voltage below 0.6V, the module max. input
voltage operating point also reduces proportionally. As shown
earlier in Fig.41, the maximum permissible input voltage is
13V. For any voltage trimmed below 0.6V, the maximum input
voltage will have to be reduced by the same factor.
When PMBus commands are used to trim or margin the
output voltage, the value of VREF is what is changed inside the
module, which in turn changes the regulated output voltage of
the module.
The nominal output voltage of the module is adjustable with a
minimum step size of 0.4% over a +10% to -20% range from
nominal using the VREF_TRIM command over the PMBus.
The VREF_TRIM command can be used to apply a fixed offset
voltage to either of the output voltage command value using
the “Linear” mode with the exponent fixed at –9 (decimal).
The value of the offset voltage is given by
VREF( offset) = VREF _ TRIM 2 −9
This offset voltage is added to the voltage set through the
divider ratio and nominal VREF to produce the trimmed output
voltage. If a value outside of the +10%/-20% adjustment range
is given with this command, the module will set it’s output
voltage to the upper or lower limit value (as if VOUT_TRIM,
assert SMBALRT#, set the CML bit in STATUS_BYTE and the
invalid data bit in STATUS_CML.
Applications Example
For a design where the output voltage is 1.8V and the output
needs to be trimmed down by 20mV.
• The internal reference voltage is 0.6V. So we need to
determine how the 20mV translates to a change in the
internal reference voltage.
• Divider Ratio = Vref/Vout = 0.6/1.8 = 0.33
• Hence a 20mV change at 1.8Vo requires a 0.33x20mV =
6.6mV change in the reference voltage.
• Vref(offset) = - (6.6)/1000 = - 0.0066 Volts (- sign since we
are trimming down)
• Vref(offset) = Vref_Trim x 2 -9
• Vref_Trim = Vref(offset) x 512
October 28, 2020
• Vref_Trim = -0.0066 x 512 = -3.3 = -3 (rounded to nearest
integer
Output Voltage Margining Using the PMBus
Each output of the module can also have its output voltage
margined via PMBus commands. The command
STEP_VREF_MARGIN_HIGH will set the margin high voltage,
while the command STEP_VREF_MARGIN_LOW sets the
margin low voltage. Both the STEP_VREF_MARGIN_HIGH and
STEP_VREF_MARGIN_LOW commands will use the “Linear”
mode with the exponent fixed at –9 (decimal). Two bytes are
used for the mantissa with the upper bit [7] of the high byte
fixed at 0. The actual margined output voltage is a
combination of the STEP_VREF_MARGIN_HIGH or
STEP_VREF_MARGIN_LOW and the VREF_TRIM values as
shown below. The net permissible voltage range change is 30% to +10% for the margin high command and -20% to 0%
for the margin low command
VREF( MH ) =
(STEP _ VREF _ MARGIN _ HIGH + VREF _ TRIM ) 2 −9
Applications Example
For a design where the output voltage is 1.2V and the output
needs to be trimmed up by 100mV (within 10% of Vo).
• The internal reference voltage is 0.6V. So we need to
determine how the 100mV translates to a change in the
internal reference voltage.
• Divider Ratio = Vref/Vout = 0.6/1.2 = 0.5
• Hence a 100mV change at 1.2Vo requires a 0.5x100mV =
50mV change in the reference voltage.
• VREF(MH) = (50)/1000 = 0.05 Volts
• VREF(MH) = (Step_Vref_margin_high + Vref_trim) x 2 -9
• Assume Vref_Trim = 0 here
• Step_Vref_margin_high = VREF(MH) x 512
• Step_Vref_margin_high = 0.05 x 25.6 = 26 (rounded to nearest
integer
VREF( ML) =
(STEP _ VREF _ MARGIN _ LOW + VREF _ TRIM ) 2 −9
Applications Example
For a design where the output voltage is 1.8V and the output
needs to be trimmed down by 100mV (within -20% of Vo).
• The internal reference voltage is 0.6V. So we need to
determine how the 100mV translates to a change in the
internal reference voltage.
• Divider Ratio = Vref/Vout = 0.6/1.8 = 0.33
• Hence a 100mV change at 1.2Vo requires a 0.33x100mV =
33mV change in the reference voltage.
• VREF(MH) = -(33)/1000 = - 0.033 Volts (- sign since we are
margining down)
• VREF(ML) = (Step_Vref_margin_low + Vref_trim) x 2 -9
• Assume Vref_Trim = - 3 here (from V Ref_Trim example
earlier)
• Step_Vref_margin_low = VREF(ML) x 512 - Vref_trim
• Step_Vref_margin_low = -0.033 x 512 – (-3) = -16.9+3 = -13.9 = 14 (rounded to nearest integer
©2016 General Electric Company. All rights reserved.
Page 20
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
The module will support the margined high or low voltages
using the OPERATION command. Bits [5:2] are used to enable
margining as follows:
00XX
0101
0110
1001
1010
:
:
:
:
:
Margin Off
Margin Low (Act on Fault)
Margin Low (Act on Fault)
Margin High (Act on Fault)
Margin High (Act on Fault)
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
exponent is fixed at –1 (decimal). The upper five bits of the
mantissa are fixed at 0 while the lower six bits are
programmable with a default value of 19A (decimal). The
resolution of this warning limit is 500mA. The value of the
IOUT_OC_WARN_LIMIT can be stored to non-volatile memory
using the STORE_DEFAULT_ALL command.
Temperature Status via PMBus
The module will provide information related to temperature
of the module through the READ_TEMPERATURE_2 command.
The command returns external temperature in degrees
Celsius. This command will use the “Linear” data format with
a two byte data word where the upper five bits [7:3] of the
high byte will represent the exponent and the remaining three
bits of the high byte [2:0] and the eight bits in the low byte
will represent the mantissa. The exponent is fixed at 0
(decimal). The lower 11 bits are the result of the ADC
conversion of the external temperature
PMBus Adjustable Output Over, Under Voltage
Protection and Power Good
The module has a common command to set the PGOOD,
VOUT_UNDER_VOLTAGE(UV) and VOUT_OVER_VOLTAGE (OV)
limits as a percentage of nominal. Refer to Table 6 of the next
section for the available settings. The PMBus command
VOUT_OVER_VOLTAGE (OV) is used to set the output over
voltage threshold from two possible values: +12.5% or
+16.67% of the commanded output voltage for each output.
The module provides a Power Good (PGOOD) for each output
signal that is implemented with an open-drain output to
indicate that the output voltage is within the regulation limits
of the power module. The PGOOD signal is de-asserted to a
low state if any condition such as overtemperature,
overcurrent or loss of regulation occurs that would result in
the output voltage going outside the specified thresholds. The
PGOOD thresholds are user selectable via the PMBus (the
default values are as shown in the Feature Specifications
Section). Each threshold is set up symmetrically above and
below the nominal value. The PGL (POWERGOODLOW)
command will set the output voltage level above which
PGOOD is asserted (lower threshold). The
October 28, 2020
PGH(POWERGOODHIGH) command will set the level above
which the PGOOD command is de-asserted. This command
will also set two thresholds symmetrically placed around the
nominal output voltage. Normally, the PGL threshold is set
higher than the PGH threshold.
The PGOOD terminal can be connected through a pullup
resistor (suggested value 100K) to a source of 5VDC or
lower. The current through the PGood terminal should be
limited to a max value of 5mA
PMBus Adjustable Input Undervoltage Lockout
The module allows for adjustment of the input under voltage
lockout and hysteresis. The command VIN_ON allows setting
the input voltage turn on threshold for each output, while the
VIN_OFF command will set the input voltage turn off
threshold. For the VIN_ON command, possible values are
4.25V to 16V in variable steps. For the VIN_OFF command,
possible values are 4V to 15.75V in 0.5V steps. If other values
are entered for either command, they is mapped to the
closest of the allowed values.
Both the VIN_ON and VIN_OFF commands use the “Linear”
format with two data bytes. The upper five bits will represent
the exponent (fixed at -2) and the remaining 11 bits will
represent the mantissa. For the mantissa, the four most
significant bits are fixed at 0.
Measurement of Output Current and Voltage
The module is capable of measuring key module parameters
such as output current and voltage for each output and
providing this information through the PMBus interface.
Measuring Output Current Using the PMBus
The module measures current by using the inductor winding
resistance as a current sense element. The inductor winding
resistance is then the current gain factor used to scale the
measured voltage into a current reading. This gain factor is
the argument of the IOUT_CAL_GAIN command, and consists
of two bytes in the linear data format. The exponent uses the
upper five bits [7:3] of the high data byte in two-s
complement format and is fixed at –15 (decimal). The
remaining 11 bits in two’s complement binary format
represent the mantissa. 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 argument for this
command consists of two bytes composed of a 5-bit exponent
(fixed at -4d) and a 11-bit mantissa. This command has a
resolution of 62.5mA and a range of -4000mA to
+3937.5mA.
The READ_IOUT command provides module average output
current information. This command only supports positive or
current sourced from the module. If the converter is sinking
current a reading of 0 is provided. The READ_IOUT command
©2016 General Electric Company. All rights reserved.
Page 21
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
returns two bytes of data in the linear data format. The
exponent uses the upper five bits [7:3] of the high data byte in
two-s complement format and is fixed at –4 (decimal). The
remaining 11 bits in two’s complement binary format
represent the mantissa with the 11th bit fixed at 0 since only
positive numbers are considered valid.
Measuring Output Voltage Using the PMBus
The module provides output voltage information using the
READ_VOUT command for each output. In this module the
output voltage is sensed at the remote sense amplifier output
pin so voltage drop to the load is not accounted for. The
command will return two bytes of data all representing the
mantissa while the exponent is fixed at -9 (decimal).
Reading the Status of the Module using the PMBus
The module supports a number of status information
commands implemented in PMBus. However, not all features
are supported in these commands. 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
October 28, 2020
Flag
VOUT fault or warning
IOUT fault or warning
X
MFR
POWER_GOOD# (is negated)
X
X
Default
Value
0
0
0
0
0
0
0
0
X
0
STATUS_VOUT : Returns one byte of information relating to
the status of the module’s output voltage related faults.
Bit
Default
Flag
Position
Value
7
VOUT OV Fault
0
6
X
0
5
X
0
4
VOUT UV Fault
0
3
X
0
2
X
0
1
X
0
0
X
0
STATUS_IOUT : 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
IOUT OC Fault
X
IOUT OC Warning
X
X
X
X
X
Default
Value
0
0
0
0
0
0
0
0
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
Flag
OT Fault
OT Warning
X
X
X
X
X
X
Default
Value
0
0
0
0
0
0
0
0
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 Command
Packet Error Check Failed
Memory Fault Detected
X
X
Other Communication Fault
X
©2016 General Electric Company. All rights reserved.
Default
Value
0
0
0
0
0
0
0
0
Page 22
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
MFR_VIN_MIN : Returns minimum input voltage as two data
bytes of information in Linear format (upper five bits are
exponent – fixed at -2, and lower 11 bits are mantissa in two’s
complement format – fixed at 12)
MFR_VOUT_MIN : Returns minimum output voltage as two
data bytes of information in Linear format (upper five bits are
exponent – fixed at -10, and lower 11 bits are mantissa in
two’s complement format – fixed at 614)
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 (000011 corresponds to the
UDXS1212 series of module), while bits [7:3] indicate the
revision number of the module.
Low Byte
Bit
Position
7:2
1:0
Flag
Module Name
Reserved
Default
Value
000011
10
High Byte
Bit
Position
7:3
2:0
October 28, 2020
Flag
Module Revision Number
Reserved
Default
Value
None
000
©2016 General Electric Company. All rights reserved.
Page 23
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Summary of Supported PMBus Commands
Please refer to the PMBus 1.1 specification for more details of these commands.
Table 6
Hex
Code
Command
Non-Volatile
Memory Storage
Brief Description
Ability to configure, control and monitor each output by using only one physical
address of the module
00
PAGE
Format
Bit Position
7
Access
r/w
Function
PA
Default Value
0
PAGE Command Truth Table
6
r
X
X
Unsigned Binary
4
3
r
r
X
X
X
X
5
r
X
X
2
r
X
X
PA
P0
Logic Results
0
0
All Commands address first output
0
1
All Commands address second output
1
0
Illegal input, Ignore write
1
1
All Commands address both outputs
1
r
X
X
0
r/w
P0
0
1
r
X
X
0
r
X
X
Turn Module on or off. Also used to margin the output voltage
01
02
OPERATION
ON_OFF_CONFIG
Format
Bit Position
Access
Function
Default Value
7
r/w
On
0
6
r
X
0
5
r/w
0
Unsigned Binary
4
3
2
r/w
r/w
r/w
Margin
0
0
0
Bit 7: 0 Output switching disabled
1
Output switching enabled
Margin: 00XX Margin Off
0101 Margin Low ( Act on fault)
0110 Margin Low (Act on fault)
1001 Margin High (Act on fault)
1010 Margin High (Act on fault)
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/w
r
Function
X
X
X
pu
cmd
cpr
pol
cpa
Default Value
0
0
0
1
0
1
1
0
YES
Refer to Page 19 for details on pu, cmd, cpr, pol and cpa
03
CLEAR_FAULTS
10
WRITE_PROTECT
15
STORE_USER_ALL
October 28, 2020
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, PAGE 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, PAGE 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)
YES
Stores all of the current storable register settings in the EEPROM memory as the
new defaults on power up
©2016 General Electric Company. All rights reserved.
Page 24
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Hex
Code
Command
Brief Description
16
RESTORE_USER_ALL
Restores all of the storable register settings from the non-volatile memory
(EEPROM). The command should not be used while the device is actively switching
19
CAPABILITY
20
VOUT_MODE
35
VIN_ON
36
October 28, 2020
VIN_OFF
This command helps the host system/GUI/CLI determine key capabilities of the
module
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
PEC
SPD
ALRT
Reserved
Default Value
1
0
1
1
0
0
0
0
PEC – 1 Supported
SPD -01 – max of 400kHZ
ALRT – 1 – SMBALERT# supported
The module has MODE set to Linear and Exponent set to -10. 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
Exponent
Default Value
0
0
0
1
0
1
1
1
Mode: Value fixed at 000, linear mode
Exponent: Value fixed at 10111, Exponent for linear mode values is -9
Sets the value of input voltage at which the module turns on
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Exponent
Mantissa
Default Value
1
1
1
1
0
0
0
0
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
0
0
0
1
0
0
0
1
Exponent -2 (dec), fixed
Mantissa
The upper four bits are fixed at 0
The lower seven are programmable with a default value of 9(dec). This
corresponds to a default of 4.25V. Allowable values are
•
4.25, in steps of 0.25V upto 9.5V.
•
9.5V to 13V in increments of 0.5V
•
13V to 16V in increments of 1V
Sets the value of input voltage at which the module turns off
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Exponent
Mantissa
Default Value
1
1
1
1
0
0
0
0
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
0
0
0
0
1
0
0
0
Exponent -2 (dec), fixed
Mantissa
The upper four bits are fixed at 0
The lower seven are programmable with a default value of 8(dec). This
corresponds to a default of 4.0V.
Allowable values are
•
4.00, in steps of 0.25V upto 9.75V.
•
10.25V to 11.75V in increments of 0.5V
•
12V
•
13.75V to 16.75V in increments of 1V
©2016 General Electric Company. All rights reserved.
Non-Volatile
Memory Storage
YES
YES
Page 25
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Hex
Code
Command
38
IOUT_CAL_GAIN
39
IOUT_CAL_OFFSET
46
IOUT_OC_FAULT_LIMIT
Value maybe locked
Non-Volatile
Memory Storage
Brief Description
Returns the value of the gain correction term used to correct the measured output
current
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r/w
Function
Exponent
Mantissa
Default Value
1
0
0
0
1
0
0
V
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
V: Variable based on factory calibration
Returns the value of the offset correction used to correct the measured output
current
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r/w
r
r
Function
Exponent
Mantissa
Default Value
1
1
1
0
0
V
V
V
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
V: Variable based on factory calibration
Sets the output overcurrent fault level in A (cannot be changed)
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Exponent
Mantissa
Default Value
1
1
1
1
1
0
0
0
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
0
0
1
0
1
0
0
0
YES
YES
YES
Determines module action in response to an IOU_OC_FAULT_LIMIT or a VOUT
undervoltage (UV) fault
47
IOUT_OC_FAULT_RESPONSE
Format
Bit Position
Access
7
r
6
r
Function
X
X
Default Value
0
0
5
r/w
RS
[2]
1
Unsigned Binary
4
3
r/w
r/w
RS
RS
[1]
[0]
1
1
2
r
1
r
0
r
x
X
X
1
0
0
YES
RS[2:0] – Retry Setting
000 Unit does not attempt to restart
111 Unit goes through normal soft start continuously
Any other value is not acceptable
4A
IOUT_OC_WARN_LIMIT
Value may be locked
October 28, 2020
Sets the output overcurrent warning level in A
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Exponent
Mantissa
Default Value
1
1
1
1
1
0
0
0
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
0
0
1
0
0
1
1
0
©2016 General Electric Company. All rights reserved.
Page 26
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Hex
Code
4F
Command
OT_FAULT_LIMIT
Value may be locked
51
OT_WARN_LIMIT
Value may be locked
61
TON_RISE
78
STATUS_BYTE
79
STATUS_WORD
7A
STATUS_VOUT
October 28, 2020
Brief Description
Non-Volatile
Memory Storage
Sets the overtemperature fault level in °C
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
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
0
1
1
1
YES
Sets the over temperature warning level in °C
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
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
0
1
1
1
1
1
0
1
YES
Sets the rise time of the output voltage during startup.
Supported Values – 0.6, 0.9, 1.2, 1.8, 2.7, 4.2, 6.0, 9.0msec. Value of 0 instructs unit to
bring its output to programmed value as quickly as possible
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r/w
Function
Exponent
Mantissa
Default Value
1
1
1
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
1
1
0
0
0
0
0
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
None
VOUT IOUT_ VIN_U
Flag
X
OFF
TEMP CML of the
_OV
OC
V
Above
Default Value
0
0
0
0
0
0
0
0
Returns two bytes of information with a summary of the module’s fault/warning conditions
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
IOUT/P
Flag
VOUT
X
MFR PGOOD
X
X
X
OUT
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
None of
VOUT_ IOUT_O
Flag
X
OFF
VIN_UV TEMP
CML
the
OV
C
above
Default Value
0
X
0
0
0
0
0
0
YES
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
Flag
VOUT_OV
X
X
VOUT_UV
X
X
X
X
Default Value
0
0
0
0
0
0
0
0
©2016 General Electric Company. All rights reserved.
Page 27
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Hex
Code
Command
7B
7D
STATUS_IOUT
STATUS_TEMPERATURE
7E
STATUS_CML
80
STATUS_MFR_SPECIFIC
Non-Volatile
Memory Storage
Brief Description
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 Fault X
IOUT OC Warning
X
X X X X
Default Value
0
0
0
0
0
0 0 0
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
Access
r
r
r
r
r
r
r
r
Flag
OT_FAULT
OT_WARN
X
X
X
X
X
X
Default Value
0
0
0
0
0
0
0
0
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
Memory
Other
Invalid
Invalid PEC
Flag
fault
X
X
Comm
X
Command Data Fail
detected
Fault
Default Value
0
0
0
0
0
0
0
0
Returns one byte of information with the status of the module specific faults or warning
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
R
Flag
OTFI
x
X
IVADDR
X
X
X
TWOPH_EN
Default Value
0
0
0
0
0
0
0
OTFI – Internal Temperature above Thermal Shutdown threshold
IVADDR – PMBUs address is not valid
TWOPH_EN – Module is in 2 phase mode
8B
8C
October 28, 2020
0
READ_VOUT
Returns the value of the output voltage of the module. Exponent is fixed at -9.
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
0
0
0
0
0
0
0
0
READ_IOUT
Returns the value of the output current of the module
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
Access
r
r
r
r
R
r
r
Function
Exponent
Mantissa
Default Value
1
1
1
0
0
V
V
Bit Position
7
6
5
4
3
2
1
Access
r
r
r
r
r
r
r
Function
Mantissa
Default Value
V
V
V
V
V
V
V
V - Variable
©2016 General Electric Company. All rights reserved.
0
r
V
0
r
0
Page 28
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Table 6 (Continued)
Hex
Code
8E
98
Command
READ_TEMPERATURE_2
PMBUS_REVISION
D0
MFR_SPECIFIC_00
D4
VREF_TRIM
D5
STEP_VREF_MARGIN_HIGH
October 28, 2020
Non-Volatile
Memory Storage
Brief Description
Returns the value of the external temperature in degree Celsius
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
Access
r
r
r
r
R
r
r
Function
Exponent
Mantissa
Default Value
0
0
0
0
0
V
V
Bit Position
7
6
5
4
3
2
1
Access
r
r
r
r
r
r
r
Function
Mantissa
Default Value
V
V
V
V
V
V
V
V - Variable
0
r
V
0
r
0
Returns one byte indicating the module is compliant to PMBus Spec. 1.1 (read only)
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
Returns module name information
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Reserved
Default Value
0
0
0
0
0
0
0
0
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Module Name
Reserved
Default Value
0
0
0
0
1
1
1
0
Applies a fixed offset to the reference voltage. Max trim range is -20% to +10% in 2mV
steps. Permissible values range between -120mV and +60mV. The offset is calculated as
VREF_TRIMx2-9. Exponent fixed at -9(dec)
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r/w
r
r
r
r
r
r
r
Function
Mantissa
Default Value
V
V
V
V
V
V
V
V
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
V
V
V
V
V
V
V
V
Applies a fixed offset to the reference voltage. Adjustment is 0% to +10% in 2mV steps.
Permissible values range between 0mV and +60mV. The offset is calculated as
(STEP_VREF_MARGIN_HIGH + VREF_TRIM)x2-9. Exponent fixed at -9(dec). Net output
voltage includes VREF_TRIM adjustment and ranges from -30% to 10%
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
V
V
V
V
V
V
V
V
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r/w
r/w
r/w
r/w
r/w
Function
Mantissa
Default Value
V
V
V
V
V
V
V
V
©2016 General Electric Company. All rights reserved.
YES
YES
YES
Page 29
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Table 6 (Continued)
Hex
Code
D6
D7
D8
Command
STEP_VREF_MARGIN_LOW
PCT_VOUT_FAULT_PG_LIMIT
Non-Volatile
Memory
Storage
Brief Description
Applies a fixed negative offset to the reference voltage. Adjustment is -20% to 0% in 2mV
steps. Permissible values range between -120mV and 0mV) The offset is calculated as
(STEP_VREF_MARGIN_LOW + VREF_TRIM)x2-9.Exponent fixed at -9(dec). Net output voltage
includes VREF_TRIM adjustment and ranges from -30% to 10%
Format
Linear, two’s complement binary
Bit Position
7
6
5
4
3
2
1
0
Access
r
r
r
r
r
r
r
r
Function
Mantissa
Default Value
V
V
V
V
V
V
V
V
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
V
V
V
V
V
V
V
V
Single command to set PGOOD, VOUT_UNDER_VOLTAGE(UV) and
VOUT_OVER_VOLTAGE(OV) limits as percentage of nominal
Format
Bit Position
7
6
5
2
1
0
Access
r
r
r
r
r
r
r/w
r/w
Function
X
X
X
X
X
X
PCT_
MSB
PCT_
LSB
X
X
X
X
X
X
0
Default Value
0
PAGE Command Truth Table
Unsigned Binary
4
3
PCT_M
SB
PCT_LS
B
UV (%)
PGL
LOW
(%)
PGL
HIGH
(%)
PGH
HIGH
(%)
PGH
LOW (%)
OV (%)
0
0
-16.67
-12.5
-8.33
12.5
8.33
16.67
0
1
-12.5
-8.33
-4.17
8.33
4.17
12.5
1
0
-29.17
-20.83
-16.67
8.33
4.17
12.5
1
1
-41.67
-37.5
-33.33
8.33
4.17
12.5
YES
Used to set delay to turn-on or turn-off modules as a ratio of TON_RISE. Values can range
from 0 to 7 and are a multiple of TON_RISE TIME
Format
Unsigned Binary
Bit Position
7
6
5
4
3
2
1
0
SEQUENCE_TON_TOFF_DELAY
Access
r/w
r/w
r/w
r
r/w
r/w
r/w
r
Function
TON_DELAY
TOFF_DELAY
Default Value
0
0
0
0
0
0
0
0
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 30
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A 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 49. The preferred
airflow direction for the module is in Figure 50.
temperatures at these points should not exceed 135oC. 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.
25.4_
(1.0)
Wind Tunnel
PWBs
Power Module
Figure 50. Preferred airflow direction and location of hotspot of the module (Tref).
76.2_
(3.0)
x
12.7_
(0.50)
Probe Location
for measuring
airflow and
ambient
temperature
Air
flow
Figure 49. Thermal Test Setup.
The thermal reference points, Tref used in the specifications
are also shown in Figure 50. For reliable operation the
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 31
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Example Application Circuit
Requirements:
Vin:
12V
Vout:
1.8V
Iout:
2 × 9A max., worst case load transient is from 6A to 9A
Vout:
1.5% of Vout (27mV) for worst case load transient
Vin, ripple
1.5% of Vin (180mV, p-p)
Vin+
VIN1
PGOOD1
Vout+
VOUT1
VS+1
RTUNE1
MODULE
SYNC
CI3
CI2
CI1
CTUNE2
CLK
TRIM1
DATA
ADDR0
SMBALRT#
ADDR1
ON/OFF1
CO1
CO2
CO3
CO4
CO5
CO6
RTrim1
RADDR1
RADDR0
SIG_GND
PGND
PGND
GND
RTrim2
ON/OFF2
TRIM2
PGOOD2
RTUNE2
CTUNE2
VS+2
VIN2
VOUT2
CI1
Decoupling cap - 4x0.1F/16V, 0402 size ceramic capacitor
CI2
4x22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
CI3
470F/16V bulk electrolytic
CO1
Decoupling cap - 2x0.1F/16V, 0402 size ceramic capacitor
CO2
3 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CO3
1 x 330F/6.3V Polymer (e.g. Sanyo Poscap)
CO4
Decoupling cap - 2x0.1F/16V, 0402 size ceramic capacitor
CO5
3 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CO6
1 x 330F/6.3V Polymer (e.g. Sanyo Poscap)
CTune1
1200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune1
300 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim1
10k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
CTune2
1200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune2
300 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim2
10k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
Note: The DATA, CLK and SMBALRT pins do not have any pull-up resistors inside the module. Typically, the SMBus master controller
will have the pull-up resistors as well as provide the driving source for these signals.
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 32
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Mechanical Outline
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.)
Pin1 (VSNS1) at this corner
Use this Black Dot for orientation
and pin numbering
PIN
1
2
3
5
4
18
6
FUNCTION
PIN
FUNCTION
1
VSNS1
15
ADDR1
2
VOUT1
16
TRIM1
3
PGND
17
SIG_GND
4
VOUT2
18
TRIM2
VSNS2
19
SYNC
20
PGND
5
6
17
16
15
October 28, 2020
19
20
21
22
23
24
25
27
28
14
26
13
12
11
10
SMBALERT#
7
7
DATA
21
PGND
8
8
CLK
22
PGND
9
ENABLE1
23
PGND
10
ENABLE2
24
PGND
11
VIN
25
PGND
12
PGND
26
PGND
13
VIN
27
PGOOD2
14
ADDRO
28
PGOOD1
9
©2016 General Electric Company. All rights reserved.
Page 33
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Recommended Pad Layout
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.)
SIG_
GND
October 28, 2020
PIN
FUNCTION
PIN
FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VSNS1
VOUT1
PGND
VOUT2
VSNS2
SMBALERT#
DATA
CLK
ENABLE1
ENABLE2
VIN
PGND
VIN
ADDRO
15
16
17
18
19
20
21
22
23
24
25
26
27
28
ADDR1
TRIM1
SIG_GND
TRIM2
SYNC
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGOOD2
PGOOD1
©2016 General Electric Company. All rights reserved.
Page 34
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Packaging Details
The 12V Digital Dual MicroDlynxTM2 × 12A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 200
modules per reel.
All Dimensions are in millimeters and (in inches).
Black Dot on the label is the orientation marker for locating Pin 1 (bottom right corner)
Reel Dimensions:
Outside Dimensions:
330.2 mm (13.00)
Inside Dimensions:
177.8 mm (7.00”)
Tape Width:
44.00 mm (1.732”)
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 35
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12AOutput Current
Surface Mount Information
Pick and Place
The2 × 12A Digital Dual MicroDlynxTM 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
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
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.
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
3mm. The maximum nozzle outer diameter, which will safely
fit within the allowable component spacing, is 7 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.
Figure 51. 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
Power Systems will comply with J-STD-020 Rev. D
(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. 50. Soldering outside of the recommended
profile requires testing to verify results and performance.
MSL Rating
The2 x 12A Digital Dual MicroDlynxTM 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).
October 28, 2020
©2016 General Electric Company. All rights reserved.
Page 36
GE
Datasheet
2 × 12A Digital Dual MicroDlynxTM: Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 12A Output Current
Ordering Information
Please contact your GE Sales Representative for pricing, availability and optional features.
Table 9. Device Codes
Device Code
Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic
Sequencing
Comcodes
UDXS1212A0X3-SRZ
4.5 – 14.4Vdc
0.51 – 5.5 Vdc
12Ax2
Negative
No
150026732
UDXS1212A0X43-SRZ
4.5 – 14.4Vdc
0.51 – 5.5 Vdc
12Ax2
Positive
No
150033761
Table 10. Coding Scheme
Package
Identifier
Family
U
P=Pico
U=Micro
M=Mega
Sequencing
Option
Input
Voltage
Output
current
Output
voltage
D
X
S
1212A0
X
D=Dlynx
Digital
T=with EZ
Sequence
Special:
4.5 – 14V
2 × 12A
V = DLynx
Analog.
X=without
sequencing
G=Giga
On/Off
logic
X=
4=
programma positive
ble output
No entry
=
negative
Remote
Sense
Options
3
-SR
Z
3=
Remote
Sense
S = Surface
Mount
Z = ROHS6
ROHS Compliance
R = Tape &
Reel
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:
+1 877 546 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.
October 28, 2020
©2016 General Electric Company. All International rights reserved.
Version 1.9
工商网监
湘ICP备2023018690号
