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LD7552BGS Datasheet(PDF) 11 Page - Leadtrend Technology

Part # LD7552BGS
Description  Green-Mode PWM Controller with Integrated Protections
PDF  16 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7552BGS Datasheet(HTML) 11 Page - Leadtrend Technology

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LD7552B
11
Leadtrend Technology Corporation
LD7552B-DS-01a January 2008
VCC
UVLO(on)
UVLO(off)
t
t
COMP
OLP
5.0V
t
OUT
60mS
Switching
Switching
Non-Switching
OLP trip Level
UVLO(off)
OLP Reset
Fig. 19
Fault Protection
There are several critical protections were integrated in the
LD7552B to prevent the power supply or adapter from being
damaged. Those damages usually come from open or short
condition on the pins of LD7552B. Under the conditions
listed below, the gate output will turn off immediately to
protect the power circuit ---
RT pin short to ground
RT pin floating
CS pin floating



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