Lot de 2 Circuits Intégrés – VIPer22A – SMPS – SMD CMS SOP8 – SGS THOMSON

Description

Low power OFF-line SMPS primary switcher

■ Fixed 60 kHz switching frequency
■ 9 V to 38 V wide range VDD voltage
■ Current mode control
■ Auxiliary undervoltage lockout with hysteresis
■ High voltage start-up current source
■ Overtemperature, overcurrent and overvoltage
protection with auto-restart

Typical applications cover off line power supplies for battery charger adapters, standby power supplies for TV or monitors, auxiliary supplies for motor control, etc. The internal control circuit offers the following benefits:
Large input voltage range on the VDD pin accommodates changes in auxiliary supply voltage. This feature is well adapted to battery charger adapter configurations.
Automatic burst mode in low load condition.
Overvoltage protection in HICCUP mode.