ICE2QS03G集成电路（IC）的ACDC转换器离线开关规格书PDF中文资料

ICE2QS03G属于集成电路（IC）的ACDC转换器离线开关。由英飞凌科技股份公司制造生产的ICE2QS03GAC DC 转换器，离线开关该系列是元器件级控制产品，用于构建将交流市电转换为直流电（通常电压大幅降低）的设备。集成和未集成系统主要开关元件的器件均包括在内。由于高输入输出电压比，以及此类系统中通常需要隔离，这些器件通常与外部变压器配合使用。尽管通常使用定制变压器来实现此用途，但也有许多专门用于此用途的库存产品，请参见“开关转换器，SMPS 变压器”标题。

描述 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.

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

特性 Features

• Quasiresonant operation till very low load

• Active burst mode operationat light/no load for low standby input power (< 100mW)

• Digital frequency reductionwith 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