STEVAL-ISA035V1:Non-isolated offline power supply demonstration board based on the VIPER22A-E

Many appliances today use non-isolated power supplies to furnish the low output power required to run a microcontroller, LED displays, and relays or AC switches. This type of power supply has a single rectifier to reference the neutral to output ground in order to fire Triacs or AC switches.

This demonstration board can use the VIPER12A-E or the VIPER22A-E, which are pinfor- pin compatible and can supply power for a wide variety of applications.

The VIPER12A-E is used for 12 V at 200 mA and 16 V at 200 mA, while the VIPER22A-E is used for 12 V at 350 mA and 16 V at 350 mA.

The same board can be used for any output voltage from 10 V to 35 V.

For more design details, please refer to application note AN1357.

Key Features

  • Integrated short-circuit protection
  • 70% to 80% efficiency at full load
  • Input voltage range 85 Vac to 264 Vac
  • Lowest possible component count
  • Input voltage frequency 50/60 Hz
  • No-load consumption around 200 mW
  • Integrated thermal overload protection
Product Specifications
DescriptionVersionSize
DB0693: Non-isolated offline power supply demonstration board based on the VIPER22A-E2.188 KB
Board Manufacturing Specifications
DescriptionVersionSize
PCB layout1.0131 KB
Bill of Materials
DescriptionVersionSize
Bill of materials1.050 KB
Schematic Packs
DescriptionVersionSize
Board schematic1.0348 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ISA035V1VIPER22ADIP-E56.351NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISA035V1CARDIndustrialEcopack2
Non-isolated offline power supply demonstration board based on the VIPER22A-E STEVAL-ISA035V1
Non-isolated offline power supply demonstration board based on the VIPER22A-E STEVAL-ISA035V1
Non-isolated offline power supply demonstration board based on the VIPER22A-E STEVAL-ISA035V1
Non-isolated offline power supply demonstration board based on the VIPER22A-E STEVAL-ISA035V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2