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AP3703 Datasheet(PDF) 3 Page - BCD Semiconductor Manufacturing Limited

Part # AP3703
Description  LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
PDF  11 Pages
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Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited

AP3703 Datasheet(HTML) 3 Page - BCD Semiconductor Manufacturing Limited

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LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
AP3703
Preliminary Datasheet
3
BCD Semiconductor Manufacturing Limited
Feb. 2009 Rev. 1.0
Functional Block Diagram
Figure 3. Functional Block Diagram of AP3703
VCC
OUT
GND
FB
CS
Regulator
&
Bias
OVP
&
OCkP
Tonsec
Detector
S&H
0.1V
4.0V
pfm
Tons
UVLO
Vea
COMP
COMP
EA
Tons
V+
pfm_d
UVLO
pro
CV_ctrl
COMP
COMP
LEB Delay
430ns
pfm_d
pfm
pfm
Driver
RQ
S
RQ
S
V
DD
I
Tons
0.5V
0.46V
0.75*I
3.75V
CC_ctrl
Vea
V+
t
COMP
3
1
2
4
5



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