FTM Board Club
STMicroelectronics
STEVAL-ISA081V1
12 V /1 A SMPS wide range demonstration board based on the VIPER26

The STEVAL-ISA081V1 demonstration board is a switched mode power supply (SMPS) demonstration board and it is an isolated SMPS capable of delivering a 12 W output over a wide input voltage range.

It is designed for a mains application focusing on cost and size effective solutions.

The STEVAL-ISA081V1 SMPS generates 12 V nominal output voltage using primary regulation and it is based on the VIPER26 monolithic converter, integrating a high voltage MOSFET and PWM controller in one package.

Features
  • Vin: 85 ~ 305 Vrms / f: 45 ~ 66 Hz
  • Vout1: 12 VDC 10 %, 1 A (at 3.3 V not loaded)
  • Vout2: 3.3 VDC 4 %, 100 mA
  • Maximum total output current: 1 A
  • Standby < 120 mW at 230 VAC
  • Short-circuit: protected
  • PCB type and size: FR4, single-side 35 μm, 32 x 90 mm
  • Isolation: isolated 4 kV / 8 mm
  • EMI: according to EN55022 Class
  • RoHS compliant