VIPER38

VIPER38 VIPerPlus family: peak power high-voltage converter Figure 1. Typical application н ,ŝŐŚsŽůƚĂŐĞ ŝŶƉƵƚ (37 '5$,1 &217 9,3HU 9'' ;ŽƉƚŝŽŶĂůͿ )% Ͳ *1' н ŽƵƚƉƵƚ Ͳ Features  800 V avalanche-rugged power MOSFET allowing ultra wide range input Vac to be achieved  Embedded HV start-up and sense FET  PWM current-mode controller  OCP with selectable threshold (IDlim) and 2nd OCP with higher value (IDMAX) to protect the IC from transformer saturation or short-circuit of the secondary diode  30 mW no-load consumption at 230 Vac  Two operating frequencies: – 60 kHz (L type) or 115 kHz (H type)  Jittered frequency reduces the EMI  Extra power timer (EPT) blanks the overload current for few seconds Datasheet - production data  Output overvoltage protection with tight tolerance and digital noise filter  Soft-start reduces the stress during startup and increases IC lifetime  Automatic restart after a fault condition  Thermal shutdown increases system reliability and IC lifetime Applications  Auxiliary power supply for consumer and home equipment  Power supply for energy meters and data concentrators  Adapters Description The device is a high-voltage converter that smartly integrates an 800 V rugged power MOSFET with PWM current-mode control. The power MOSFET allows a very high input Vac to be applied, just limited from its breakdown voltage. This IC is capable of meeting more stringent energy-saving standards as it has very low consumption and ...