L6564H datasheet(1/35 Pages) STMICROELECTRONICS

部品番号	L6564H

部品情報	High voltage startup transition-mode PFC

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1 / 35 page

This is information on a product in full production.

June 2012

Doc ID 022960 Rev 2

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35

L6564H

High voltage startup transition-mode PFC

Datasheet

− production data

Features

■ Onboard 700 V startup source

■ Fast “bi-directional” input voltage feedforward

(1/V2 correction)

■ Accurate adjustable output overvoltage

protection

■ Protection against feedback loop

disconnection (latched shutdown)

■ Inductor saturation protection

■ AC brownout detection

■ Low (

≤100 µA) startup current

■ 6 mA max. operating bias current

■ 1% (@ TJ = 25 °C) internal reference voltage

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

active pull-down during UVLO

■ SO-14 package

Application

■ PFC pre-regulators for:

– High-end AC-DC adapter/charger

– IEC61000-3-2 or JEITA-MITI compliant

SMPS, in excess of 400 W

– SMPS for LED luminaires

Figure 1.

Block diagram

SO-14

AM11475v1

VFF

S

R

Q1

STARTER

LEB

Q1

VOLTAGE

REGULATOR

UVLO

-+

-

+

2.5 V

-

+

MULTIPLIER

Internal Supply Bus

Voltage

ref erences

+

-

0.23 V

-

+

Vcc

GD

CS

GND

MULT

INV

PFC_OK

ZCD

Disable

OVP

UVLO

Disable

Q

S

R

DISABLE

L_OVP

UVLO

Error Amplif ier

COMP

Ideal rectif ier

1/V2

2.5 V

2.4 V

OVP

+

-

L_OVP

12

Starter

OFF

11

8

-

+

0.7V

1.4V

Detector

Zero Current

ON/OFF Control

14

3

13

6

1

2

DETECTOR

MAINS DROP

4

5

+

-

1.7 V

Disable

Icharge

HVS

0.27 V

1.66 V

-

+

0.8 V

0.88 V

ON/OFF Control

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