Power Manager II Product Brief

IN-SYSTEM PROGRAMMABLE POWER SUPPLY MANAGEMENT CHIP
TM
Power Manager II
Integrate Common Board Power Management Functions
Lattice’s Power Manager II devices feature an innovative
programmable core and precision analog sensors to reduce
component count and increase reliability. Power Manager II
devices significantly reduce cost by integrating power management
board functions such as hot-swap controllers, power supply
OR’ing, sequencing, voltage monitoring, reset generation,
trimming, margining, and more. The resulting solution can be
customized to meet the needs of a wide variety of circuit boards
as opposed to using many types of single function ICs. And Lattice
programmability enables power management designs to meet
changing requirements without major circuit redesign or a board
re-spin.
Power Manager II – A Superior Solution
Cost Savings Through Integration
• Significantly reduce cost per function by integrating hotswap controller, OR’ing controller, power feed, sequencing
controller, reset generator, voltage/current measurement
and trimming and margining functions
Increased Reliability
• Supervise every supply
• 0.2% accuracy (typ.)
• Differential measurement
• Respond to events in <65µs
• Reduced component count
• Power management algorithm is ruggedized through
simulation
Reduced Risk
• Device configuration stored in on-chip non-volatile memory
• Change trip points, timing and sequencing without board
re-spins
• Use JTAG to make updates after assembly
• Power management algorithm is implemented using software
Key Features and Benefits
Up to 12 Differential Voltage Sensors for Monitoring
• Immune to noise on ground plane
• Improved monitoring and measurement accuracy
• Power supply voltage trimming to within 1%
Dual, Precision Programmable Comparator per Input
• Reliable board operation and fast fault detection
• Over-voltage, under-voltage and window flags
Ruggedized CPLD with Up to 48 Macrocells for Sequencing
and Supervisory Signal Logic
• Large operating power supply range (3.3V + 20% to 3.3V 15%)
• High glitch immunity
• Efficient logic implementation
• Able to integrate multiple power management functions
Up to 4 High-Voltage MOSFET Driver Outputs
• Provide power supply ramp rate control
• Implement hot swap, OR’ing and power feed functions
Voltage Measurement with 10-bit ADC through I2C
• Used for digital closed loop trimming
Up to 8 On-chip DACs for Margining and Trimming
• Convenient supply trimming/margining control
• Increase output voltage accuracy to 1%
I2C Bus Interface
• Control power supply sequence
• Measure voltage through ADC
• Closed loop power supply control via DAC
32-Pin QFN, 48-Pin TQFP, 100-Pin TQFP Industrial
Temperature
JTAG In-System Programmable with Non-Volatile E2CMOS®
Configuration Storage
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Power Manager II
Selector Guide
Application Cross Reference Guide by Device
Power Manager II Device Family
Function
Hot Swap to External
Systems
Power Feed to External
Systems
ProcessorPM
POWR607
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
-48V Hot-Swap Controller (Payload - isolated)
+12 / 24V Hot-Swap Controller
-48V Supply Feed
+12/24V Supply Feed
-48V Supply OR'ing Using MOSFET (Payload - Isolated)
Redundant Supply
Selection
+12/24V Supply OR'ing Using MOSFET
Supply Sequencing
Voltage Supervision
Reset Generation
Payload (Secondary)
Power Management
Watchdog Timer
POWR1014
POWR1014A
POWR1220AT8
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Voltage Measurement Using ADC
Power Supply Margining
Power Supply Voltage Trimming
Power Manager II Device Selection by Number of Rails
Number of Rails on Board
Function
<3
3 to 5
5 to 8
>8
Reset Generation
–
ProcessorPM™
POWR1014
POWR1220AT8
Voltage Supervision
–
ProcessorPM
POWR1014
POWR1220AT8
Watchdog Timer
–
ProcessorPM
POWR1014
POWR1220AT8
Minimal Sequencing <3 Groups
–
ProcessorPM
POWR1014
POWR1220AT8
Individual Supply Sequencing Control
ProcessorPM
POWR607
POWR1220AT8
POWR1220AT8
Hot-Swap Controller +5 or 12 or 24V
POWR607
POWR1014
POWR1220AT8
POWR1220AT8
Redundant Power Management 5/12/24V
POWR607
POWR1014
POWR1220AT8
POWR1220AT8
POWR1014A
POWR1014A
POWR1220AT8
POWR1220AT8
POWR1220AT8
POWR1220AT8
POWR1220AT8
POWR1220AT8
POWR607
POWR607
POWR607
POWR607
–
POWR607
POWR607
POWR607
POWR607
–
POWR607
POWR607
POWR607
POWR607
–
I2C, ADC Measurement
Supply Margining/Trimming
Hot-Swap Controller -48V
-48V
Primary
Redundant Power Management -48V
Supply
Management Power Feed -48V
Comments
Power Manager II devices in
these rows can integrate all
functions listed above in their
respective column
Applications
Power Manager II Application Example
5V Hot-Swap, 12V Hot-Swap + Power Feed
Q1
+12V
12V
Ch
CSA
C2
Q2
V2
DC-DC 2
Q3
V3
DC-DC 3
S_Dn
C_Pmp
CSA
D2
V1
DC-DC 1
3.3V
Q1
+5V
Sequencing, Monitoring,
Reset Generation,
Triming & Margining
5V
Reset_In
Alert_b
Brown_Out
Other_Resets
I2C Port
SCK
V3_Mon
V2_Mon
V1_Mon
En_V3_b
Trim_V3
En_V2_b
En_V1_b
V_Sens12V
Shut_Dn
FETDRV12V
I_Sens12V
V_In_12V
V_Sens5V
FETDRV5V
I_Sens5V
CPU Rst
Power Manager II
POWR1220AT8
BD_Sel_b
SDA
Voltage and Current
Measurement
Hot-Swap Controller Features
Voltage and Current Monitoring Features
Low starting current, backplane voltage dip upon card insertion
– almost eliminated, reduced hold-off capacitor size, short circuit
protection, over current protection, retry on fault, isolate card upon
secondary fault, operating power measurement.
Programmable thresholds with an accuracy of 0.2% (typ.), detects
faults on any rail (up to 12) in less than 64µs, monitors voltages
down to 0.67V – immune to ground voltage differences due to
differential sensing.
Power Feed Features
Supply Sequencing Features
Over current protection, fast shut down (<1µs) under short circuit
conditions, over/under current fault indication, retry on fault.
Completely programmable power up and power down sequencing,
shutdown sequencing upon fault, event driven sequencing,
programmable thresholds, time periods.
Power Manager II Integration
% of Total Cost
(1KU)
Hot-Swap
30%
Supply OR’ing
16%
Power Feed Control
13%
Supply Sequencing
31%
Voltage Monitoring
7%
Watchdog Timer
3%
Traditional Solution Total Cost
Power Manager II Based Solution Cost
100%
50%
Hot-Swap Control
Power Supply OR’ing
RELATIVE COST
Function
Power Feed
Up to
50%
Reduction
in BOM
Cost
Supply Sequencing
Voltage Monitoring
Trim/Margining
Watchdog Timer
TRADITIONAL
TM
Power
Manager II
NEW
TM
Power Manager II Family
Parameter
POWR1220AT8
POWR1014A
POWR1014
POWR607
ProcessorPM
Number of Analog Input Pins
12
10
10
6
6
Number of Programmable Comparators
24
20
20
6
6
Trip Points per Input
368
368
368
192
192
Typical Precision
0.2%
0.3%
0.3%
0.5%
0.5%
Lowest Supply Voltage Monitored
0.7V
0.7V
0.7V
0.7V
0.7V
Power-off Detection
75mV
75mV
75mV
75mV
75mV
Number of CPLD Macrocells
48
24
24
16
16
20 + 8 Trim Outputs
14
14
7
5
Number of FET Drivers
4
2
2
2
—
Number of TrimCells
8
—
—
—
—
10 Bits
10 Bits
—
—
—
Yes
Yes
—
—
—
2.8V to 3.9V
2.8V to 3.9V
2.8V to 3.9V
2.6V to 3.9V
2.6V to 3.9V
Number of Outputs
ADC Resolution
I2C Support
Operating Voltage
Package
Ordering Part Number
100-Pin TQFP
48-Pin TQFP
48-Pin TQFP
32-Pin QFN
24-Pin QFN
ispPAC®-POWR
1220AT8-02T100I
ispPAC-POWR
1014A-02T48I
ispPAC-POWR
1014-02T48I
ispPAC-POWR
607-01N32I
ispPAC-POWR
605-01N24I
Design Made Simple with PAC-Designer Software
PAC-Designer® software supports the Power Manager II family
of devices and includes both the digital logic fitter and waveform
simulators, offering the convenience of design and verification
of the power sequencing and monitoring circuit using PC-based
software. The verified design can be downloaded into a Power
Manager II device through the PC’s USB port using a USB Cable.
Set power supply
threshold voltage
Verify trimmed DC-DC voltage
using calculated resistor network
Specify sequencing and monitoring
steps in LogiBuilder
Set FET gate driver
voltage and ramp rate
Verify design using
waveform simulator
Program the verified design
in-system through the JTAG port
Applications Support
[email protected]
Copyright © 2013 Lattice Semiconductor Corporation. Lattice Semiconductor, L (stylized) Lattice Semiconductor Corp., Lattice (design), E2CMOS, ispDOWNLOAD, ispPAC, PAC-Designer, and ProcessorPM
are either registered trademarks or trademarks of Lattice Semiconductor Corporation in the United States and/or other countries. Other product names used in this publication are for identification purposes
only and may be trademarks of their respective companies.
July 2013
Order #: I0178G
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