ICE2QS03G データシートの表示（PDF） - Infineon Technologies

部品番号

コンポーネント説明

メーカー

ICE2QS03G

Quasi-Resonant PWM Controller

Infineon Technologies 

ICE2QS03G

Quasi-Resonant PWM Controller

Product Highlight

• Active burst mode for low standby power

• Digital frequency reduction for better overall system efficiency

• Integrated power cell for IC self-power supply

ICE2QS03G

PG-DSO-8

Features

• Quasiresonant operation till very low load

• Active burst mode operation at light/no load for low

standby input power (< 100mW)

• Digital frequency reduction with decreasing load

• Power cell for VCC pre-charging with constant

current

• Built-in digital soft-start

• Foldback correction and cycle-by-cycle peak

current limitation

• Auto restart mode for VCC Overvoltage protection

• Auto restart mode for VCC Undervoltage protection

• Auto restart mode for openloop/overload protection

• Latch-off mode for adjustable output overvoltage

protection

• Latch-off mode for Short-winding protection

Description

ICE2QS03G is a quasi-resonant PWM controller

optimized for off-line switch power supply applications

such as LCD TV, CRT TV and notebook adapter. The

digital frequency reduction with decreasing load

enables a quasi-resonant operation till very low load.

As a result, the overall system efficiency is significantly

improved compared to other conventional solutions.

The active burst mode operation enables an ultra-low

power consumption at standby mode with small and

controllable output voltage ripple. Based on the

BiCMOS technology, the product has a wide operation

range (up to 26V) of IC power supply and lower power

consumption. The numerous protection functions give

a full protection of the power supply system in failure

situations. All of these make the ICE2QS03G an

outstanding controller for quasi-resonant flyback

converter in the market.

Typical Application Circuit

Type

ICE2QS03G

Version 2.1

Package

PG-DSO-8

3

February 5, 2010

Share Link: