VIPER53SP Datasheet PDF - ST Microelectronics

DESCRIPTION

●The VIPer53 combines in the same package an enhanced current mode PWM controller with a high voltage MDMesh Power Mosfet. Typical applications cover off line power supplies with a secondary power capability ranging up to 30W in wide range input voltage or 50W in single European voltage range and DIP-8 package, with the following benefits:

●– Overload and short circuit controlled by feedback monitoring and delayed device reset.

●– Efficient standby mode by enhanced pulse skipping.

●– Primary regulation or secondary loop failure protection through high gain error amplifier.

●FEATURES

●SWITCHING FREQUENCY UP TO 300 kHz

●CURRENT LIMITATION

●CURRENT MODE CONTROL WITH ADJUSTABLE LIMITATION

●SOFT START AND SHUT DOWN CONTROL

●AUTOMATIC BURST MODE IN STAND-BY CONDITION (“BLUE ANGEL” COMPLIANT)

●UNDERVOLTAGE LOCKOUT WITH HYSTERESIS

●HIGH VOLTAGE STARTUP CURRENT SOURCE

●OVERTEMPERATURE PROTECTION

●OVERLOAD AND SHORT-CIRCUIT CONTROL