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LD7577 Datasheet(PDF) 3 Page - Leadtrend Technology

No. de pieza LD7577
Descripción Electrónicos  High Voltage Green-Mode PWM Controller with Brown-Out Protection
PDF  18 Pages
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Fabricante Electrónico  LEADTREND [Leadtrend Technology]
Página de inicio  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7577 Datasheet(HTML) 3 Page - Leadtrend Technology

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LD7577
3
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7577-DS-01 January 2009
Block Diagram
COMP
CS
OUT
internal bias
& Vref
GND
PWM
Comparator
Green
Mode
Control
Leading
Edge
Blanking
2R
R
R
SQ
Vref OK
PG
+
+
Slope
Compensation
28.0V
VCC
0.85V
30 mS
Delay
5.0V
OCP
Comparator
OLP
Comparator
Protection
OVP
UVLO
Comparator
OVP
Comparator
VCC OK
Vbias
32V
All
Blocks
65 KHz
OSC
BNO
1. 05V/0. 95V
Brownout Comparator
PDR
8.0V
OLP
OVP
BNOUT
R
SQ
Protection
PG
PG
1/ 2
Counter
R
S
Q
OLP
1mA
HV
PDR
4.0V/3.8V
Line OVP
Line OVP Comparator
16.0V/
10.0V
Driver
Stage



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