VIPer100A - STMicroelectronics

VIPer100A SMPS PRIMARY I.C.

VIPer100™/100A, made using VIPower M0 Technology, combines on the same silicon chip a state-of-the-art PWM circuit together with an optimized high voltage avalanche rugged Vertical Power MOSFET (620V or 700V / 3A). Typical applications cover off line power supplies with a secondary power capability of 50W in wide range condition and 100W in single range or w.

Features

e range or with doubler configuration. It is compatible from both primary or secondary regulation loop despite using around 50% less components when compared with a discrete solution. Burst mode operation is an additional feature of this device, offering the possibility to operate in stand-by mode without extra components. DRAIN ON/OFF OSCILLATOR SECURITY LATCH V DD PWM LATCH S R1 FF Q R2 R3 UVLO LOGIC R/S FF S Q OVERTEMP. DETECTOR 0.5V _ + + _ 0.5 V + _ 1.7 µ s DELAY 25 0 ns BLANKING 1 V/A ERROR _ AMPLIFIER 13 V + 4.5 V CURRENT AMPLIFIER COMP SOURCE FC00231 May 1999 1/20 .