AP3765 Ver la hoja de datos (PDF) - BCD Semiconductor

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AP3765

LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER

BCD Semiconductor 

Preliminary Datasheet

LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER

Functional Block Diagram

AP3765

6

0 .1 V

FB

COMP

pfm

Tonsec

Detector

VCC

3

Tons

Regulator

&

UVLO

Bias

EA

4.0V

OCkP

Constant Voltage Control

CV_ ctr l

RQ

S

pfm Driver 1 OUT

4

CS

Peak Current Control & LEB

Tons

Constant Current Control

RQ

CC_ctrl

S

2, 5 GND

Figure 3. Functional Block Diagram of AP3765

Feb. 2010 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

3

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