STEVAL-ISA171V1:12 V - 15 W quasi resonant flyback converter based on the VIPER35HD

The STEVAl-ISA171V1 implements a 15 W power supply designed in quasi resonant flyback topology for a wide-range AC input voltage. Its key features are its small size and minimal bill of material, high efficiency and low standby consumption.

The core of the application is the VIPER35, the quasi-resonant offline high voltage converter from the VIPerPLUS product family.

The VIPER35 integrates an 800 V rugged power MOSFET with PWM current-mode control.

Extremely low consumption under no-load conditions is ensured thanks to burst mode operation that reduces the average switching frequency and minimizes all frequency-related losses.

The VIPER35 operates in quasi resonant mode, a feature that helps to meet the EMI standards.

Key Features

  • Wide input voltage range: 90 VAC to 264 VAC
  • Output voltage: 12 V
  • Output current: 1.25 A
  • Rated output power: 15 W
  • Quasi resonant operation
  • Input power standby @ 230 VAC : < 30 mW
  • Active mode efficiency: > 82%
  • EMI: pre-compliance with EN55022-Class-B
  • RoHS compliant
产品规格
DescriptionVersionSize
DB2744: 12 V - 15 W quasi resonant flyback converter based on the VIPER35HD1.0216 KB
应用手册
DescriptionVersionSize
AN4812: 15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters1.01 MB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ISA171V1 gerber files1.0326 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ISA171V1 BOM1.064 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ISA171V1 schematic1.048 KB
许可协议
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
样片和购买
型号Core ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ISA171V1VIPER35HD57.581NECEAR99ITALY
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISA171V1CARDIndustrialEcopack2
12 V - 15 W quasi resonant flyback converter based on the VIPER35HD STEVAL-ISA171V1
15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters STEVAL-ISA171V1
15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters STEVAL-ISA171V1
15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters STEVAL-ISA171V1
15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters STEVAL-ISA171V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2