VIPER53DIP
FEATURES
DESCRIPTION n SWITCHING FREQUENCY UP TO 300 k Hz n CURRENT LIMITATION The VIPer53 bines in the same package an enhanced current mode PWM controller with a n CURRENT MODE CONTROL WITH high voltage MDMesh Power Mosfet. Typical ADJUSTABLE LIMITATION applications cover off line power supplies with a n SOFT START AND SHUT DOWN CONTROL secondary power capability ranging up to 30W in n AUTOMATIC BURST MODE IN STAND-BY wide range input voltage or 50W in single CONDITION (“BLUE ANGEL” PLIANT) European voltage range and DIP-8 package, with the following benefits: n UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
- Overload and short circuit controlled by feedback monitoring and delayed device reset. n HIGH VOLTAGE STARTUP CURRENT ..
- Efficient standby mode by enhanced pulse SOURCE skipping. n OVERTEMPERATURE PROTECTION
- Primary regulation or secondary loop failure n OVERLOAD AND SHORT-CIRCUIT CONTROL protection through high gain error amplifier. BLOCK DIAGRAM
OSC DRAIN
ON/OFF OSCILLATOR
PWM...
