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UCC29002D Datasheet

  • UCC29002D

  • ADVANCED 8-PIN LOAD-SHARE CONTROLLER

  • 19頁

  • TI

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UCC29002
UCC39002
SLUS495C 鈭?SEPTEMBER 2001 鈭?REVISED JULY 2003
ADVANCED 8 PIN
LOAD SHARE CONTROLLER
FEATURES
D
High Accuracy, Better Than 1% CurrentShare
D
D
D
D
D
D
D
D
D
Error at Full Load
High-Side or Low-Side (GND Reference)
Current-Sense Capability
Ultra-Low Offset Current Sense Amplifier
Single Wire Load Share Bus
Full Scale Adjustability
Intel
餂?/div>
SSI LoadShare Specification Compliant
Disconnect from Load Share Bus at Stand-By
Load Share Bus Protection Against Shorts to
GND or to the Supply Rail
8-Pin MSOP Package Minimizes Space
Lead-Free Assembly
DESCRIPTION
The UCC39002 is an advanced, high performance and
low cost loadshare controller that provides all
necessary functions to parallel multiple independent
power supplies or dc-to-dc modules. Targeted for high
reliability applications in server, workstation, telecom
and other distributed power systems, the controller is
suitable for N+1 redundant systems or high current
applications where off-the-shelf power supplies need to
be paralleled.
The BiCMOS UCC39002 is based on the automatic
master/slave architecture of the UC3902 and UC3907
load share controllers. It provides better than 1%
current share error between modules at full load by
using a very low offset post-package-trimmed
current-sense amplifier and a high-gain negative
feedback loop. And with the amplifier鈥檚 common mode
range of 0-V to the supply rail, the current sense resistor
can be placed in either the GND return path or in the
positive output rail of the power supply.
SYSTEM CONFIGURATIONS
D
Modules With Remote Sense Capability
D
Modules With Adjust Input
D
Modules With Both Remote Sense and Adjust
D
Input
In Conjunction With the Internal Feedback E/A
of OEM Power Supply Units
TYPICAL LOW-SIDE CURRENT SENSING APPLICATION
V+
RADJ
S+
UCC39002
1
POWER
SUPPLY
WITH
REMOTE
SENSE
2
3
4
S鈭?/div>
RSENSE
V鈭?/div>
CS鈭?/div>
CS+
VDD
GND
CSO
LS
EAO
ADJ
8
7
SYSTEM+鈭?/div>
6
5
SYSTEM+
LS BUS
LOAD
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
錚?/div>
2002, Texas Instruments Incorporated
www.ti.com
1
o

UCC29002D 產(chǎn)品屬性

  • 75

  • 集成電路 (IC)

  • PMIC - 電源管理 - 專用

  • -

  • 負荷分載控制器

  • 2.5mA

  • 4.375 V ~ 14.25 V

  • -40°C ~ 105°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

  • 296-19045-ND - EVAL MODULE FOR UCC39002

  • 296-13024-5

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