ICE3AS02G datasheet(3/22 Pages) INFINEON

3 / 22 page

Type

FOSC

Package

ICE3AS02

100kHz

PG-DIP-8

ICE3BS02

67kHz

PG-DIP-8

ICE3AS02G

100kHz

PG-DSO-8

ICE3BS02G

67kHz

PG-DSO-8

Version 1.2

02 Sep 2005

ICE3AS02 / ICE3BS02

ICE3AS02G / ICE3BS02G

Off-Line SMPS Current Mode Controller

with integrated 500V Startup Cell

P-DSO-8-3, -6

test

PG-DIP-8

PG-DSO-8

Product Highlights

• Active Burst Mode to reach the lowest Standby Power

Requirements < 100mW

• Protection features (Auto Restart Mode) to increase

robustness and safety of the system

• Adjustable Blanking Window for high load jumps to increase

system reliability

• PB-free Plating and RoHS compilant

Features

• 500V Startup Cell switched off after Start Up

• Active Burst Mode for lowest Standby Power

@ light load controlled by Feedback Signal

• Fast load jump response in Active Burst Mode

• 100/67kHz internally fixed switching frequency

• Auto Restart Mode for Overtemperature Detection

• Auto Restart Mode for VCC Overvoltage Detection

• Auto Restart Mode for Overload and Open Loop

• Auto Restart Mode for VCC Undervoltage

• Blanking Window for short duration high current

• User defined Soft Start

• Minimum of external components required

• Max Duty Cycle 72%

• Overall tolerance of Current Limiting

< ±5%

• Internal PWM Leading Edge Blanking

• Soft switching for low EMI

Description

The F3 Controller provides Active Burst Mode to reach the

lowest Standby Power Requirements <100mW at no load. As

the controller is always active during Active Burst Mode, there

is an immediate response on load jumps without any black out

in the SMPS. In Active Burst Mode the ripple of the output

voltage can be reduced <1%. Furthermore, to increase the

robustness and safety of the system, the device enters into Auto

Restart Mode in the cases of Overtemperature, VCC

Overvoltage, Output Open Loop or Overload and VCC

Undervoltage. By means of the internal precise peak current

limitation, the dimension of the transformer and the secondary

diode can be lowered which leads to more cost efficiency. An

adjustable blanking window prevents the IC from entering Auto

Restart Mode or Active Burst Mode unintentionally in case of

high load jumps.

SoftS

VCC

Bulk

Converter

DC Output

ICE3AS02/G ICE3BS02/G

Snubber

Power

Management

PWM Controller

Current Mode

85 ... 270 VAC

Typical Application

Sense

Gate

Startup Cell

Precise Low

Tolerance Peak

Current Limitation

SoftS

GND

VCC

Control Unit

Active Burst Mode

Auto Restart Mode

ICE3AS02G Datasheet(PDF) 3 Page - Infineon Technologies AG

ICE3AS02G Datasheet(HTML) 3 Page - Infineon Technologies AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Datasheet Download

Link URL