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UCC29002DR1

更新时间： 2024-11-24 00:48:07
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德州仪器 - TI /
页数 文件大小 规格书
28页 1035K
描述
ADVANCED 8-PIN LOAD-SHARE CONTROLLER

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UCC29002DR1 数据手册

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SLUS495H − SEPTEMBER 2001 − REVISED AUGUST 2007  
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FEATURES  
DESCRIPTION  
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High Accuracy, Better Than 1% CurrentShare  
Error at Full Load  
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.  
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 SSI LoadShare Specification Compliant  
Disconnect from Load Share Bus at Stand-By  
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  
Load Share Bus Protection Against Shorts to  
GND or to the Supply Rail  
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8-Pin MSOP Package Minimizes Space  
Lead-Free Assembly  
using  
a
very low offset post-package-trimmed  
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current-sense amplifier and a high-gain negative  
feedback loop. And with the amplifier’s common mode  
range of 0-V to the supply rail, the current sense  
SYSTEM CONFIGURATIONS  
resistor, R  
, can be placed in either the GND return  
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Modules With Remote Sense Capability  
Modules With Adjust Input  
SHUNT  
path or in the positive output rail of the power supply.  
Modules With Both Remote Sense and Adjust  
Input  
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In Conjunction With the Internal Feedback E/A  
of OEM Power Supply Units  
TYPICAL LOW-SIDE CURRENT SENSING APPLICATION  
V+  
R
ADJ  
S+  
UCC39002  
LOAD  
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CS−  
CSO  
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POWER  
SUPPLY  
WITH  
REMOTE  
SENSE  
CS+  
VDD  
GND  
LS  
EAO  
ADJ  
S−  
V−  
R
SHUNT  
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Copyright 2007, Texas Instruments Incorporated  
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ꢞ ꢢ ꢟ ꢞꢗ ꢘꢬ ꢚꢙ ꢝ ꢥꢥ ꢣꢝ ꢛ ꢝ ꢜ ꢢ ꢞ ꢢ ꢛ ꢟ ꢧ  
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