VIPER53DIP

® VIPer53DIP VIPer53SP OFF LINE PRIMARY SWITCH TYPICAL OUTPUT POWER CAPABILITY TYPE DIP-8 PowerSO-10™ Note: European (195 - 265 Vac) 50W 65W US / Wide range (85 - 265 Vac) 30W 40W 10 1 Above power capabilities are given under adequate thermal conditions DIP-8 PowerSO-10™ FEATURES DESCRIPTION n SWITCHING FREQUENCY UP TO 300 kHz n CURRENT LIMITATION The VIPer53 combines 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” COMPLIANT) 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 www.DataSheet4U.com – 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 LATCH OVERTEMP. DETECTOR R1 R2 R3 UVLO COMPARATOR VDD 8.4/ 11.5V 0.5V STANDBY COMPARATOR 4V 150/400ns BLANKING PWM COMPARATOR 8V S FF R4 Q R5 0.5V H COMP BLANKING TIME SELECTION 1V CURRENT AMPLIFIER...