VIPER20B Datasheet | STMicroelectronics

® VIPer20B VIPer20BSP SMPS PRIMARY I.C. PRELIMINARY DATA T YPE VIPer20B/ SP V DSS 400V In 1.3 A R DS(on) 8.7 Ω FEATURE s ADJUSTABLE SWITCHING FREQUENCY UP TO 200KHZ s CURRENT MODE CONTROL s SOFT START AND SHUT DOWN CONTROL s AUTOMATIC BURST MODE OPERATION IN STAND-BY CONDITION ABLE TO MEET ”BLUE ANGEL” NORM (1W TOTAL POWER CONSUMPTION) s INTERNALLY TRIMMED ZENER REFERENCE s UNDERVOLTAGE LOCK-OUT WITH HYSTERESIS s INTEGRATED START-UP SUPPLY s AVALANCHE RUGGED s OVERTEMPERATURE PROTECTION s LOW STAND-BY CURRENT s ADJUSTABLE CURRENT LIMITATION BLOCK DIAGRAM PENTAWATT HV Power SO-10 DESCRIPTION VIPer20B™ bines on the same silicon chip a state-of-the-art PWM circuit together...