R2A20113SP(2009) 데이터 시트보기 (PDF) - Renesas Electronics

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R2A20113SP
(Rev.:2009)

Critical Conduction Mode PFC Control IC

Renesas Electronics 

R2A20113SP

Block Diagram

VREF 4

VREF: 5V

UVLO

ON: 12V

OFF: 9.2V

27.5V

8 VCC

40k

CS 5

5p

RT 3

10p

Zero

Current

Detector

OCP COMP

–

+

–0.4V

SQ

RQ

Delay

Restart

SQ

RQ

Ramp Low

Detect

–

+

1V 0.2V

–

+

SQ

R

7 OUT

6 GND

GD Disable

OVP BLOCK

COMP

Discharge

FB

Error Amp

–

+

2.51V

1 FB

2 COMP

4.0V

GD Disable

Static OVP

+

–

FB

VFB × 1.09V/100mVhys

COMP

Discharge

Dynamic OVP

+

–

OVP BLOCK

–

+

FB open detect

VFB × 1.05V

0.5V/0.2Vhys

REJ03F0279-0200 Rev.2.00 Jul 08, 2009

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