L6563ATR datasheet(1/39 Pages) STMICROELECTRONICS

No de pièce	L6563ATR

Description	Advanced transition-mode PFC controller

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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March 2007

Rev 4

1/39

39

L6563

L6563A

Advanced transition-mode PFC controller

Features

■ Very precise adjustable output overvoltage

protection

■ Tracking boost function

■ Protection against feedback loop failure

(Latched shutdown)

■ Interface for cascaded converter's PWM

controller

■ Input voltage feedforward (1/V2)

■ Inductor saturation detection (L6563 only)

■ Remote ON/OFF control

■ Low (≤ 90µA) start-up current

■ 5mA max. quiescent current

■ 1.5% (@ TJ = 25°C) internal reference voltage

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

active pull-down during UVLO

■ SO14 package

Applications

PFC pre-regulators for:

■ HI-END AC-DC adapter/charger

■ Desktop PC, server, WEB server

■ IEC61000-3-2 OR JEIDA-MITI compliant

SMPS, in excess of 350W

Table 1. Device summary

Part number

Package

Packaging

L6563

SO-14

Tube

L6563TR

SO-14

Tape & Reel

L6563A

SO-14

Tube

L6563ATR

SO-14

Tape & Reel

SO-14

www.st.com

Figure 1.

Block diagram

+

-

VREF2

Vbias

(INTERNAL SUPPLY BUS)

+

-

2.5V

R1

R2

+

-

ZERO CURRENT

DETECTOR

VCC

14

12

3

4

ZCD

VCC

INV

COMP

MULT

CS

GD

13

11

GND

12

MULTIPLIER

R

S

Q

STARTER

1.7V

+

-

6

TBO

2.5V

PFC_OK

7

1:1

CURRENT

MIRROR

-

RUN

10

0.52V

0.6V

PWM_LATCH

8

5

VFF

LEADING-EDGE

BLANKING

1:1

BUFFER

from

VFF

1.4V

0.7V

PWM_STOP

9

Vbias

UVLO

COMPARATOR

0.2V

0.26V

15 V

SAT

DISABLE

LATCH

UVLO

3V

SAT

Ideal diode

1 / V 2

Starter

OFF

Driver

Q

TRACKING

BOOST

ON/OFF CONTROL

(BROWNOUT DETECTION)

LINE VOLTAGE

FEEDFORWARD

INDUCTOR

SATURATION

DETECTION

( not in L6563A )

FEEDBACK

FAILURE

PROTECTION

VOLTAGE

REGULATOR

Voltage

references

Numéro de pièce similaire - L6563ATR

Fabricant	No de pièce	Fiches technique	Description
STMicroelectronics	L6563ATR	765Kb / 37P	ADVANCED TRANSITION-MODE PFC CONTROLLER

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Description similaire - L6563ATR

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L6563ATR Fiches technique(PDF) 1 Page - STMicroelectronics

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