STEVAL-ISA134V1:12 V - 4 W, 115 kHz isolated flyback based on the VIPer06

The STEVAL-ISA134V1 demonstration board is a a 12 V - 4 W power supply in isolated flyback topology using the VIPer06, a new off-line high voltage converter by STMicroelectronics.

The VIPer06 features an 800 V avalanche rugged power section, PWM operation at 115 kHz with frequency jittering for lower EMI, cycle-by-cycle current limit with adjustable set point, on-board soft-start and safe auto-restart after a fault condition.

Protection features available include thermal shutdown with hysteresis, delayed overload protection, and open loop failure protection (the latter available only if auxiliary winding is used).

This flyback converter design is suitable for various applications, such as external adapter or as an auxiliary power supply in consumer equipment.

Key Features

  • AC main input voltage VIN : 85 VAC - 265 VAC
  • Main frequency fL : 50 Hz; 60 Hz
  • Output voltage VOUT : 12 V
  • Max output current IOUT : 333 mA
  • Precision of output regulation ΔVOUT_LF : ± 5%
  • High frequency output voltage ripple: ΔVOUT_HF 50 mV
  • Min active mode efficiency ηAV = 71%
  • Max ambient operating temperature: TAMB = 60 °C
Product Specifications
DescriptionVersionSize
DB1941: 12 V - 4 W, 115 kHz isolated flyback based on the VIPer061.0223 KB
Application Notes
DescriptionVersionSize
AN4372: STEVAL-ISA134V1: 12 V / 4 W, 115 kHz isolated flyback2.01 MB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ISA134V1 gerber files1.0345 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ISA134V1 BOM3.047 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ISA134V1 schematics1.0139 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-ISA134V1VIPER06HN51.451NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISA134V1CARDIndustrialEcopack2
12 V - 4 W, 115 kHz isolated flyback based on the VIPer06 STEVAL-ISA134V1
STEVAL-ISA134V1: 12 V / 4 W, 115 kHz isolated flyback STEVAL-ISA134V1
STEVAL-ISA134V1: 12 V / 4 W, 115 kHz isolated flyback STEVAL-ISA134V1
STEVAL-ISA134V1: 12 V / 4 W, 115 kHz isolated flyback STEVAL-ISA134V1
STEVAL-ISA134V1: 12 V / 4 W, 115 kHz isolated flyback STEVAL-ISA134V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2