L6566A(2007) 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

L6566A
(Rev.:2007)

Multi-mode controller for SMPS with PFC front-end

STMicroelectronics 

Application information

L6566A

Figure 7. Timing diagram showing short-circuit behavior (SS pin clamped at 5V)

Vcc

(pin 5)

VccON

VccOFF

Vccrestart

Short circuit occurs here

GD

(pin 4)

Trep

t

< 0.03Trep

Vcc_OK

t

Icharge

t

0.85 mA

t

Figure 8. Zero current detection block, triggering block, oscillator block and related

logic

L6566A

COMP

9

VFF

15

line

FFW D

ZCD 11

RZ1

RZ2

5.7V

BLANKING

TIME

blanking

START

-

+

100 mV

50 mV

Strobe

+

-

5V

MONO

STABLE

TURN-ON

LOGIC

OSCILLATOR

Reset

4:1

FAULT

S/H

Counter

PWM

7 CS

R

Q

S

4 GD

DRIVER

13

OSC

RT

+Vin

Q

Rs

20/51

Share Link: