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AP3983C Datasheet(PDF) 3 Page - Diodes Incorporated

Part # AP3983C
Description  HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER FOR OFF-LINE SMPS
PDF  13 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP3983C Datasheet(HTML) 3 Page - Diodes Incorporated

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AP3983B/C/D
Document number: DS36784 Rev. 4 - 2
3 of 13
www.diodes.com
July 2016
© Diodes Incorporated
AP3983B/C/D
Functional Block Diagram
Regulator
&
Bias
OVP/SCP/OTP/
OCkP/Max tONP
PFM
UVLO
CV_ctrl
PFM
Driver
R
Q
S
R
Q
S
FB
CS
CPC
VCC
D
GND
Constant Voltage
Control
Constant Current
Control
0.05V
3
5, 6
7
1
2
COMP
EA
Peak
Current
Control
& LEB
Pro
Shutdown
Line
Compensation
OSC
Timer
UV/OV
UV/OV
Vcs_X select
VALLEY
_ON
VLOAD
CC_ctrl
CS
Bang_bang
Vcs_X
Bang_bang
Detector
Bang_bang
VLOAD
Detect
Pulse
Cable
Compensation
VLOAD
UV
Detect_on
Low Pass Filter
VCPC
Vcs_X
tONS
tOFF
tOSC
tONS
Detector
512*tOSC
Detect_On
VFB_REF
VLINE
VCS_REF
tONS
4
CS



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