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LD7538GL Datasheet(PDF) 3 Page - Leadtrend Technology

Part # LD7538GL
Description  Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
PDF  17 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7538GL Datasheet(HTML) 3 Page - Leadtrend Technology

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LD7538
3
Leadtrend Technology Corporation
LD7538-DS-00
November 2012
Block Diagram
Int.OSC
COMP
CS
OUT
internal bias &
Vref
PWM
Comparator
16.0V/
7.5V
Green-
Mode
Control
Leading
Edge
Blanking
2R
R
R
S
Q
Vref OK
PG
+
+
Slope
Compensation
28.5V
VCC
0.85V
OLP Delay
Counter
4.4V
OCP
Comparator
OLP
Comparator
VCC OVP
VCC OVP
UVLO
Comparator
Driver
Stage
VCC OVP
Comparator
R
S
Q
VCC OK
Protection
PG
Vbias
OLP
All
Blocks
GND
Protection
Latch
Latch
VBIAS
Duty
0.2V
CS OVP
OUT
Sample
Delay
VF
R
S
Q
Protection/L
atch
PG
OUT
OTP
Vbias
OTP Latch
Comparator
100 uA
1.05V/
0.95V
CS OVP
OTP
OTP
Latch



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