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Description

The STEVAL-ISA113V1 demonstration board is a

12 V-0.35 A power supply set in non-isolated

flyback topology using the new VIPER06HS

offline high-voltage converter by

STMicroelectronics.

The features of the device include an 800 V

avalanche rugged power section, PWM operation

at 115 kHz with frequency jittering for lower EMI,

current limiting with adjustable set point, onboard

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

and a low standby power.

The protection features available include a

thermal shutdown with hysteresis, delayed

overload protection, and open loop failure

protection.

Features

■ Universal input mains range:

– input voltage 90 - 265 VAC

– frequency 45 - 65 Hz

■ Single-output voltage: 12 V at 0.35 A

continuous operation

■ Standby mains consumption: < 30 mW at

230 VAC

■ Average efficiency: > 74

■ Fully protected against faults (overload,

feedback disconnection and overheating)

■ EMI: according to EN55022-Class-B

■ RoHS compliant