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LD7830GS Datasheet(PDF) 3 Page - Leadtrend Technology

Part # LD7830GS
Description  High Power Factor Flyback LED Controller with HV Start-up
PDF  18 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7830GS Datasheet(HTML) 3 Page - Leadtrend Technology

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LD7830
3
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7830-DS-01a
August 2012
Block Diagram
CS
OUT
internal bias
& Vref
GND
PWM
Comparator
Vref OK
16V/7.5V
VCC
OCP
UVLO
Driver
Stage
VCC OK
All Block
ZCD
0.1V/0.2V
COMP
OLP
26V
VCC OVP
0.80V
Zero ON Time
VCC OVP
HV
Leading
Edge
Blanking
0.5V
Comparator
4.8V
Vref
Fmax limit
PG
PG
ZCD Blanking
PG
1 / 4
Counter
R
S
Q
OLP
PDR
PDR
6.5V
ZCD
Zero ON Time
OLP delay
Zero ON
Time
Ramp generator
Start Timer
HV
Regulator
R
S
Q
S
R
Q



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