KA5H0280RTU集成电路（IC）的ACDC转换器离线开关规格书PDF中文资料

KA5H0280RTU属于集成电路（IC）的ACDC转换器离线开关。由安森美半导体公司制造生产的KA5H0280RTUAC 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

The Power Switch product family is specially designed for

an off-line SMPS with minimal external components. The

Power Switchconsist of highvoltage power SenseFET and

current mode PWM IC. IncludedPWM controller features

integrated fixed oscillator, under voltage lock out, leading edge

blanking, optimized gate turn-on/turn-off driver, thermal shut

down protection, over voltage protection, and temperature

compensated precision current sources for loop

compensation and fault protection circuitry-compared to

discrete MOSFET and controller or RCC switching converter

solution. The Power Switchcan reduce total component count,

design size, weight and at thesame time increase efficiency,

productivity, and system reliability. It has a basic platform

well suited for cost-effectivedesign in either a flyback

converter or a forward converter.

特性 Features

• Precision Fixed Operating Frequency (100/67/50kHz)

• Low Start-up Current (Typ. 100uA)

• Pulse by Pulse Current Limiting

• Over Load Protection

• Over Voltage Protection (Min. 25V)

• Internal Thermal Shutdown Function

• Under Voltage Lockout

• Internal High Voltage Sense FET

• Auto-Restart Mode