ZY8140 40A DC-DC Intelligent POL
8V to 14V Input • 0.5V to 3.65V Output
Data Sheet
Member of the
Applications
• Low voltage, high density systems with
Intermediate Bus Architectures (IBA)
• Point-of-load regulators for high performance
DSP, FPGA, ASIC, and microprocessors
• Desktops, servers, and portable computing
• Broadband, networking, optical, and
communications systems
Benefits
• Integrates digital power conversion with
intelligent power management
• Eliminates the need for external power
management components
• Completely programmable via industry-standard
2
I C communication bus
• One part that covers all applications
• Reduces board space, system cost and
complexity, and time to market
Family
Features
• RoHS lead free and lead-solder-exempt products are
available
• Wide input voltage range: 8V–14V
• High continuous output current: 40A
• Programmable output voltage range: 0.5V–3.65V
• Efficiency up to 94%
• Active digital current share
• Single-wire serial communication bus for frequency
synchronization, programming, and monitoring
• Real time voltage, current, and temperature
measurements, monitoring, and reporting
• Optimal voltage positioning with programmable slope
of the VI line
• Overcurrent, overvoltage, undervoltage, and
overtemperature protections with programmable
thresholds and types
• Programmable fixed switching frequency 0.5-1.0MHz
• Programmable turn-on and turn-off delays
• Programmable turn-on and turn-off voltage slew rates
with tracking protection
• Programmable feedback loop compensation
• Power Good signal with programmable limits
• Programmable fault management
• Start up into the load pre-biased up to 100%
• Current sink capability
• Industry standard size through-hole single-in-line
package: 1.8”x0.55”
• Low height of 1.1”
• Wide operating temperature range: 0 to 70ºC
• UL 60950-1/CSA 22.2 No. 60950-1-07 Second
Edition, IEC 60950-1: 2005, and EN 60950-1:2006
Description
Power-One’s point-of-load converters are recommended for use with regulated bus converters in an Intermediate
Bus Architecture (IBA). The ZY8140 is an intelligent, fully programmable multiphase step-down point-of-load DCDC module integrating digital power conversion and intelligent power management. When used with ZM7300
Series Digital Power Managers, the ZY8140 completely eliminates the need for external components for
sequencing, tracking, protection, monitoring, and reporting. All parameters of the ZY8140 are programmable via
2
the industry-standard I C communication bus and can be changed by a user at any time during product
development and service.
Reference Documents:
• ZM7300G Series Digital Power Manager. Data Sheet
• ZM7300 Digital Power Manager Programming Manual
• Power-One I2C Graphical User Interface Program
2
• ZM00056-KIT USB to I C Adapter Kit. User Manual
ZD-01977 Rev. 1.4, 5-May-2011
www.power-one.com
Page 1 of 29
ZY8140 40A DC-DC Intelligent POL
8V to 14V Input • 0.5V to 3.65V Output
Data Sheet
1.
Ordering Information
ZY
81
40
y
Product
family: ZOne
Module
Series:
Server Class
Intelligent POL
Converter
Output
Current:
40A
RoHS compliance:
No suffix - RoHS compliant
1
with Pb solder exemption
G - RoHS compliant for all
six substances
–
zz
2
Packaging Option :
R1 – 30 pc Tray
Q1 – 1 pc sample for
evaluation only
Dash
______________________________________
1
The solder exemption refers to all the restricted materials except lead in solder. These materials are Cadmium (Cd), Hexavalent chromium
(Cr6+), Mercury (Hg), Polybrominated biphenyls (PBB), Polybrominated diphenylethers (PBDE), and Lead (Pb) used anywhere except in
solder.
2
Packaging option is used only for ordering and not included in the part number printed on the POL converter label.
3
Z-One evaluation board is available in only one configuration: ZM7300-KIT-HKS.
Example: ZY8140G-R1: A 30-piece tray of RoHS compliant POL converters. Each POL converter is labeled
ZY8140G.
2.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect longterm reliability, and cause permanent damage to the converter.
3.
Parameter
Conditions/Description
Min
Max
Units
Operating Temperature
Controller case temperature
0
105
°C
Input Voltage
250ms Transient
15
VDC
Environmental and Mechanical Specifications
Parameter
Conditions/Description
Min
Nom
Max
Units
Ambient Temperature Range
0
70
°C
Storage Temperature (Ts)
-55
125
°C
15
grams
500
Hz
G
oct/min
sweeps
G
ms
Weight
Frequency Range
Magnitude
Sweep Rate
Repetitions in each axis (Min-Max-Min Sweep)
Acceleration
Duration
Number of shocks in each axis
5
0.5
1
2
50
11
10
MTBF
Calculated Per Telcordia Technologies SR-332
23
Peak Reflow Temperature
ZY8140
Peak Reflow Temperature
ZY8140G
Lead Plating
ZY8140 and ZY8140G
100% Matte Tin
Moisture Sensitivity Level
per JEDEC J-STD-020C
ZY8140
ZY8140G
2
3
Operating Vibration
(sinusoidal)
Non-Operating Shock
(half sine)
ZD-01977 Rev. 1.4, 5-May-2011
www.power-one.com
MHrs
245
220
°C
260
°C
Page 2 of 29
ZY8140 40A DC-DC Intelligent POL
8V to 14V Input • 0.5V to 3.65V Output
Data Sheet
4.
Electrical Specifications
Specifications apply at the input voltage from 8V to 14V, output load from 0 to 40A, ambient temperature from 0°C
to 70°C, 110µF ceramic output capacitance, and default performance parameters settings unless otherwise noted.
4.1
4.2
Input Specifications
Parameter
Conditions/Description
Min
Input voltage (VIN)
Refer to Figure 1
8
Input Current (at no load)
VIN=12V
Maximum Input Current
VIN=8V, VOUT=3.6V
Nom
Max
Units
14
VDC
23
mADC
19.7
ADC
Max
Units
3.65
VDC
VDC
Output Specifications
Parameter
Output Voltage Range (VOUT)
Output Voltage Setpoint Accuracy
Conditions/Description
1
Programmable
Default (no programming)
VIN=12V, IOUT=0.5*IOUT MAX,
FSW=500kHz, room temperature
Min
Nom
0.5
0.5
±1.2% or 10mV whichever is
greater
-40
2
40
%VO.SET
Output Current (IOUT)
VIN MIN to VIN MAX
ADC
Line Regulation
VIN MIN to VIN MAX
±0.5
%VOUT
Load Regulation
0 to IOUT MAX
±0.5
%VOUT
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Peak-to-Peak
Ripple and Noise
BW=20MHz
Full Load
50% - 75% load step, Slew rate 1A/µs
COUT=330µF, FSW=1MHz
to 10% of peak deviation
VIN=12V, VOUT=0.75V
VIN=12V, VOUT=1.0V
VIN=12V, VOUT=2.5V
VIN=12V, VOUT=3.3V
200
25
15
20
25
30
mV
µs
mV
mV
mV
mV
Efficiency
FSW=500kHz
Full Load
Room temperature
VIN=12V, VOUT=0.5V
VIN=12V, VOUT=0.75V
VIN=12V, VOUT=1.0V
VIN=12V, VOUT=1.2V
VIN=12V, VOUT=1.8V
VIN=12V, VOUT=2.5V
VIN=12V, VOUT=3.3V
75.3
81.9
85.3
87
90.2
92.1
93.5
%
%
%
%
%
%
%
Temperature Coefficient
VIN=12V, VOUT =2.5V, IOUT=0.5*IOUT MAX
35
ppm/°C
Switching Frequency
(3 phases combined)
Default
Programmable, 250kHz steps
Default
Programmable, 0.5% steps
500
Duty Cycle
500
0
50
1,000
50
1
kHz
kHz
%
%
ZY8140 is a step-down converter, thus the output voltage is always lower than the input voltage as show in Figure 1.
At the negative output current (bus terminator mode) efficiency of the ZY8140 degrades resulting in increased internal power dissipation.
Therefore maximum allowable negative current under specific conditions is 20% lower than the current determined from the derating curves
shown in paragraph 5.5.
2
ZD-01977 Rev. 1.4, 5-May-2011
www.power-one.com
Page 3 of 29
ZY8140 40A DC-DC Intelligent POL
8V to 14V Input • 0.5V to 3.65V Output
Data Sheet
Figure 1. Output Voltage as a Function of Input Voltage
4.3
Protection Specifications
Parameter
Conditions/Description
Min
Nom
Max
Units
Output Overcurrent Protection
Type
Threshold
Default
Programmable
Default
Programmable in 11 steps
Threshold Accuracy
40
Non-Latching, 130ms period
Latching/Non-Latching
140
%IOUT
140
%IOUT
-25
25
%IOCP.SET
Output Overvoltage Protection
Default
Programmable
Default
Programmable in 10% steps
110
Threshold Accuracy
Measured at VO.SET=2.5V
-2
Delay
From instant when threshold is exceeded until
the turn-off command is generated
Type
Threshold
ZD-01977 Rev. 1.4, 5-May-2011
www.power-one.com
1
Non-Latching, 130ms period
Latching/Non-Latching
130
%VO.SET
130
%VO.SET
2
%VOVP.SET
6
μs
Page 4 of 29
ZY8140 40A DC-DC Intelligent POL
8V to 14V Input • 0.5V to 3.65V Output
Data Sheet
Output Undervoltage Protection
Default
Programmable
Default
Programmable in 5% steps
75
Non-Latching, 130ms period
Latching/Non-Latching
75
%VO.SET
90
%VO.SET
Threshold Accuracy
Measured at VO.SET=2.5V
-2
2
Delay
From instant when threshold is exceeded until
the turn-off command is generated
Type
Threshold
%VUVP.SET
6
μs
Overtemperature Protection
Type
Default
Programmable
Turn Off Threshold
Temperature is increasing
120
°C
Turn On Threshold
Temperature is decreasing after the module was
shut down by OTP
110
°C
Threshold Accuracy
Delay
Non-Latching, 130ms period
Latching/Non-Latching
-5
From instant when the controller junction
temperature reaches the OTP threshold until the
turn-off command is generated
5
2
°C
ms
Tracking Protection (when Enabled)
Type
Default
Programmable
Threshold
Enabled during output voltage ramping up
Threshold Accuracy
Delay
Disabled
Latching/Non-Latching, 130ms period
-50
From instant when threshold is exceeded until
the turn-off command is generated
±250
mVDC
50
mVDC
6
μs
120
°C
Overtemperature Warning
Threshold
Always enabled, reported in Status register
Threshold Accuracy
-5
Hysteresis
Delay
From instant when threshold is exceeded until
the warning signal is generated
5
°C
3
°C
6
μs
Power Good Signal (PGOOD pin)
Logic
Lower Threshold
VOUT is inside the PG window
VOUT is outside the PG window
Default
Programmable in 5% steps
90
Upper Threshold
Delay
From instant when threshold is exceeded until
status of PG signal changes
Threshold Accuracy
Measured at VO.SET=2.5V
-2
High
Low
90
N/A
95
110
%VO.SET
6
μs
2
___________________
1
Minimum OVP threshold is 1.0V
ZD-01977 Rev. 1.4, 5-May-2011
www.power-one.com
%VO.SET
%VO.SET
Page 5 of 29
%VO.SET
ZY8140 40A DC-DC Intelligent POL
8V to 14V Input • 0.5V to 3.65V Output
Data Sheet
4.4
Feature Specifications
Parameter
Conditions/Description
Min
Nom
Max
Units
Current Share
Type
Current Share Accuracy
Active, Single Line
IOUT MIN≥20%*IOUT NOM
±20
%IOUT
348.75
Degree
degree
Interleave
Interleave (Phase Shift)
Default
Programmable in 11.25° steps
0
0
Sequencing
Turn ON Delay
Turn OFF Delay
Default
Programmable in 1ms steps
Default
Programmable in 1ms steps
0
0
0
0
ms
ms
ms
ms
255
63
Tracking
Turn ON Slew Rate
Turn OFF Slew Rate
Default
Programmable in 7 steps
Default
Programmable in 7 steps
0.1
-0.1
0.1
-0.1
8.33
1
-8.33
1
V/ms
V/ms
V/ms
V/ms
Optimal Voltage Positioning
Load Regulation
Default
Programmable in 7 steps
0
0
3.02
mV/A
mV/A
Feedback Loop Compensation
Zero1 (Effects phase lead and
increases gain in mid-band)
Zero 2 (Effects phase lead and
increases gain in mid-band)
Pole 1 (Integrator Pole, effects
loop gain)
Pole 2 (Effects phase lag and
limits gain in mid-band)
Pole 3 (High frequency low- pass
filter to limit PWM noise)
Programmable
0.05
50
kHz
Programmable
0.05
50
kHz
Programmable
0.05
50
kHz
Programmable
1
1000
kHz
Programmable
1
1000
kHz
Monitoring
Voltage Monitoring Accuracy
1 LSB=22mV
-1%VOUT
– 1 LSB
1%VOUT
+ 1 LSB
mV
Current Monitoring Accuracy
30%IOUT NOM