VIPER28LE

VIPER28系列 23.5 V 3.5 mA 离线 转换器 PWM控制器 - SDIP-10

Description

The device is an off-line converter with an 800 V rugged power section, a PWM control, two levels of over-current protection, over-voltage 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.

Features

■ 800 V avalanche rugged power section

■ PWM operation with adjustable limiting current

■ 30 mW stand-by power at 265 Vac

■ Operating frequency:

– 60 kHz for L type

– 115 kHz for H type

■ Frequency jittering for low EMC

■ Output overvoltage protection

■ High primary current protection 2nd OCP

■ Extra power timer for peak current management

■ On-board soft-start

■ Safe auto-restart after a fault condition

■ Hysteretic thermal shutdown

Application

■ Auxiliary power supply for consumer and home equipment

■ ATX auxiliary power supply

■ Low / medium power AC-DC adapters

■ SMPS for set-top boxes, DVD players and recorders, white goods