For further information contact your local STMicroelectronics sales office.

February 2013

Doc ID 024268 Rev 1

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STEVAL-ISA116V1

5 W, 2-output wide-range buck converter based on the VIPER26LD

Data brief

Features

– frequency: 45 - 65 Hz

– 16 V @ 0.3 A continuous operation

– 5 V through LDO

feedback disconnection and overheating)

Description

The STEVAL-ISA116V1 demonstration board

implements a double-output power supply set in

buck topology using the VIPER26LD, a new off-

line high voltage converter by STMicroelectronics.

The features of the device include an 800 V

avalanche-rugged power section, PWM operation

at 60 kHz with frequency jittering for lower EMI,

current limiting with adjustable set point, on-board

soft-start, safe auto-restart after a fault condition

and low standby power consumption.

The protection features include thermal shutdown

with hysteresis, delayed overload protection and

open loop failure protection. All protection is auto-

restart mode.

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