L6566B datasheet(1/51 Pages) STMICROELECTRONICS

Numer części	L6566B

Szczegółowy opis	Multi-mode controller for SMPS

PDF	51 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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1 / 51 page

May 2008

Rev 2

1/51

51

L6566B

Multi-mode controller for SMPS

Features

■ Selectable multi-mode operation:

fixed frequency or quasi-resonant

■ On-board 700 V high-voltage start-up

■ Advanced light load management

■ Low quiescent current (< 3 mA)

■ Adaptive UVLO

■ Line feedforward for constant power capability

vs mains voltage

■ Pulse-by-pulse OCP, shutdown on overload

(latched or autorestart)

■ Transformer saturation detection

■ Programmable frequency modulation for EMI

reduction

■ Latched or autorestart OVP

■ Brownout protection

■ -600/+800 mA totem pole gate driver with

active pull-down during UVLO

■ SO16N package

Applications

■ Hi-end AC-DC adapter/charger

■ LCD TV/monitor, PDP

■ digital consumer, IT equipment

■ single-stage PFC

SO16N

www.st.com

Figure 1.

Block diagram

+

-

+

-

ZERO CURRENT

DETECTOR

50 mV

100 mV

VCC

915

7

ZCD

COMP

VFF

CS

GD

4

11

3

LINE VOLTAGE

FEEDFORWARD

1.5 V

+

-

4.5V

DIS

8

LATCH

LEB

14V

Ref erence

voltages

5

VCC

10

Internal supply

VREF

UVLO

VOLTAGE

REGULATOR

&

ADAPTIVE UVLO

FMOD

6

IC_LATCH

DISABLE

UVLO

Q

12

+

-

+

-

0.450V

0.485V

AC_OK

16

13

AC_FAIL

UVLO_SHF

VCC

5.7V

1

HV

SOFT-START

&

FAULT MNGT

14

SS

OSC

MODE/SC

+-

OSCILLATOR

R

S

Q

MODE SELECTION

&

TURN-ON LOGIC

OVERVOLTAGE

PROTECTION

15 µA

7.7V

OCP

PWM

TIME

OUT

TIME

OUT

+

-

Vth

BURST-MODE

LOW CLAMP

& DISABLE

OFF2

IHV

Hiccup-mode

OCP logic

3 V

400 uA

DRIVER

OCP2

6.4V

VCC

Icharge

OVPL

OVP

OVPL

OVP

Podobny numer części - L6566B

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	L6566B	485Kb / 51P	Multi-mode controller for SMPS 20-Aug-2007
	L6566BH	1Mb / 51P	Multimode controller for SMPS 16-Apr-2012
	L6566BHTR	1Mb / 51P	Multimode controller for SMPS 16-Apr-2012
	L6566BTR	485Kb / 51P	Multi-mode controller for SMPS 20-Aug-2007

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Podobny opis - L6566B

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	L6566A	494Kb / 51P	Multi-mode controller for SMPS with PFC front-end 20-Aug-2007
	L6566B	485Kb / 51P	Multi-mode controller for SMPS 20-Aug-2007
	L6566A	543Kb / 51P	Multi-mode controller for SMPS with PFC front-end 29-May-2008
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STMicroelectronics	L6566BH	1Mb / 51P	Multimode controller for SMPS 16-Apr-2012
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Infineon Technologies A...	ICE3BR1065JF	2Mb / 36P	Off-Line SMPS Current Mode Controller Version 2.1, 6 May 2011
Infineon Technologies A...	ICE3BR4765JZ	1Mb / 32P	Off-Line SMPS Current Mode Controller Version 2.1, 30 Aug 2011

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