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Description

The STEVAL-ISA115V1 evaluation board is a 12

V / 0.15 A power supply set in buck topology with

the VIPER06XS, 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 30 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 low standby power consumption.

Available protection features include thermal

shutdown with hysteresis, delayed overload

protection and open loop failure protection. All

protection is auto-restart mode.

Features

? Universal input mains range:

? input voltage: 90 VAC - 264 VAC

? frequency: 45 Hz - 65 Hz

? Single-output voltage: 12 V @ 0.15 A

continuous operation

? Standby mains consumption: < 50 mW @

265 VAC

? Average efficiency: > 75

? Fully protected against faults (overload,

feedback disconnection and overheating)

? EMI: in accordance with EN55022-Class-B

? RoHS compliant