Features

 1050 V avalanche-rugged power MOSFET

 allowing ultra-wide VAC input range to be

covered

 Embedded HV startup and sense-FET

 Current mode PWM controller

 Drain current limit protection:

 -500 mA (VIPER265K)

 -700 mA (VIPER267K)

 Jittered switching frequency reduces the EMI

filter cost: 60 kHz ± 4kHz

 Standby power < 30 mW at 230 VAC

 Embedded E/A with 3.3 V reference

 Safe auto-restart after a fault condition

 Hysteretic thermal shutdown

 Built-in soft-start for improved system reliability

Applications

 SMPS for energy metering

 Auxiliary power supplies for 3-phase input

industrial systems

 LED lighting

 Air conditioning

Description

The device is a high voltage converter smartly

integrating a 1050 V avalanche-rugged power

section, with a PWM current mode control. The

1050 V-BV power MOSFET allows to extend input

voltage range, and reduce the size of the DRAIN

snubber circuit. This IC meets the most stringent

energy-saving standards as it has very low

consumption and operates in burst mode under

light load.

The integrated HV startup, sense-FET, error

amplifier and oscillator with jitter allow a complete

application to be designed with the minimum

number of components.

The VIPer26K supports the most common SMPS

topologies such as: isolated flyback with

optocoupler, primary-side regulation, non-isolated

flyback with resistive feedback, buck, and buck

boost.