STMicroelectronics offers a complete tool line, tailored to the Offline constant current LED driver based on the VIPer17.

The STEVAL-ILL017V1 demonstration board is a 2 W non-isolated offline constant current LED driver based on the VIPer17. The board operates with an input ranging from 176 V to 264 VAC and provides 500 mA of constant current from a 7 VDC source, suitable for illuminating two LEDs in series.

The VIPer17 device is an offline converter with an 800 V rugged power section, a PWM control, overcurrent protection, overvoltage and overload protection, hysteretic thermal protection, soft-start and safe auto-restart after the removal of a fault condition. The brown-out protection function is embedded into the high voltage start-up. Burst mode operation and the very low consumption of the device combine to meet standby energy saving regulations. Advanced frequency jittering reduces EMI filter cost.


  • Input voltage 220 VAC +/- 20%
  • 800 V avalanche rugged power section
  • Provides 500 mA constant current for LED
  • High precision constant current with +/- 5% tolerance (1 sense resistor and 2 resistor bridges with +/- 1% precision)
  • Overtemperature protection
  • LED open-circuit protection
  • LED short-circuit protection
  • PWM operation with frequency jittering for low EMI
  • Operating frequency:
    • 60 kHz for L type
    • 115 kHz for H type
  • Standby power < 50 mW at 265 VAC
  • Adjustable and accurate overvoltage protection
  • On-board soft-start
  • Safe auto-restart after a fault condition


  • Adapters for PDAs, camcorders, electric shavers, cellular phones, videogames
  • Auxiliary power supply for LCD/PDP TVs, monitors, audio systems, computers, industrial applications
  • SMPS for set-top boxes, DVD players/ recorders, white goods

To learn more about VIPer17 product family, Click Here

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Mfr Part#: STEVAL-ILL017V1
Available In: BULK

Demo Board 2 W Non-Isolated Offline Constant Current LED Driver Based on VIPER17

Technical Specifications:

Type: Core Supported:
LED Driver Evaluation VIPer17
See the Download Center for a complete library of supporting documentation.


$62.82 USD (each)
1+ $62.82

Other quantities & packages (Reels) may also be available


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