VIPER27中文资料VIPerPlus系列：固定频率12W高性能离线高压转换器数据手册ST规格书

描述 Description

The device is an off-line converter with an 800 V rugged power section, a PWM control, two levels of over-current protection, overvoltage and overload protections, hysteretic thermal protection, soft-start and safe auto-restart after any fault condition removal. Burst mode operation and device very low consumption help to meet the standby energy saving regulations.

Advance frequency jittering reduces EMI filter cost. Brown-out function protects the switch mode power supply when the rectified input voltage level is below the normal minimum level specified for the system. The high voltage start-up circuit is embedded in the device.

特性 Features

• 800 V avalanche rugged power section
• PWM operation with frequency jittering for low EMI
• Operating frequency:
•60 kHz for L type
•115 kHz for H type
• Standby power

简介

VIPER27属于集成电路（IC）的ACDC转换器离线开关。由制造生产的VIPER27AC 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。