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參數(shù)資料
| 型號： | ISPPAC-POWR6AT6-01NN32I |
| 廠商： | LATTICE SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | In-System Programmable Power Supply Monitoring and Margining Controller |
| 中文描述： | 6-CHANNEL POWER SUPPLY SUPPORT CKT, QCC32 |
| 封裝： | 5 X 5 MM, LEAD FREE, QFN-32 |
| 文件頁數(shù)： | 1/34頁 |
| 文件大小： | 906K |
| 代理商： | ISPPAC-POWR6AT6-01NN32I |
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www.latticesemi.com
1
6at6_01.0
ispPAC-POWR6AT6
In-System Programmable Power Supply
Monitoring and Margining Controller
April 2006
Features
Power Supply Margin and Trim Functions
Trim and margin up to six power supplies
Dynamic voltage control through I
Four hardware selectable voltage profiles
Independent Digital Closed-Loop Trim function
for each output
Analog Input Monitoring
Six analog monitor inputs
Differential input architecture for accurate
remote ground sensing
10-bit ADC for direct voltage measurements
2-Wire (I
C/SMBus Compatible) Interface
Readout of the ADC
Dynamic trimming/margining control
Other Features
Programmable analog circuitry
Wide supply range, 2.8V to 3.96V
In-system programmable through JTAG
Industrial temperature range: -40°C to +85°C
32-pin QFN package, only 5mm x 5mm, lead-
free option
Preliminary Data Sheet
2006 Lattice Semiconductor Corp. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at www.latticesemi.com/legal. All other
brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without
notice.
Description
Lattice’s Power Manager II ispPAC-POWR6AT6 is a
general-purpose power-supply monitoring and margin-
ing controller, incorporating in-system programmable
analog functions implemented in non-volatile E
technology. The ispPAC-POWR6AT6 device provides
six independent analog input channels to monitor up to
six power supply test points. Each of these input chan-
nels offers a differential input to support remote ground
sensing.
2
CMOS
The ispPAC-POWR6AT6 incorporates six DACs for gen-
erating a trimming voltage to control the output voltage
of a power supply. The trimming voltage can be set to
four hardware selectable preset values (voltage profiles)
or can be dynamically loaded in to the DAC through the
I
C bus. Additionally, each power supply output voltage
can be maintained typically within 0.5% tolerance
across various load conditions using the Digital Closed
Loop Control mode. The operating voltage profile can
be selected using external hardware pins.
2
■
2
C
■
■
2
■
Application Block Diagram
Po
w
er S
u
pply
Margin/Trim
Control
6 Analog
Monitor Inp
u
ts
I
2
C
Interface
6 Analog
Trim O
u
tp
u
ts
ADC
ispPAC-POWR6AT6
3.3
V
2.5
V
1.
8V
POL#1
POL#2
POL#3
O
u
i
Trim
V
o
u
t
V
o
u
t
Trim
V
o
u
t
Trim
V
o
u
t
Trim
V
o
u
t
Trim
V
o
u
t
Trim
CPU
I
2
C
B
u
s
The on-chip 10-bit A/D converter can both be used to
monitor the V
MON
voltage through the I
for implementing digital closed loop mode for maintain-
ing the output voltage of all power supplies controlled by
the monitoring and trimming section of the ispPAC-
POWR6AT6 device.
2
C bus as well as
The I
controller to measure the voltages connected to the
V
MON
analog monitor inputs and load the DACs for the
generation of the trimming voltages of the external DC-
DC converters.
2
C bus/SMBus interface allows an external micro-
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