3 W non-isolated offline LED driver demonstration board based on the VIPer22A-E

The progress made in the field of LEDs is visible on an almost day-by-day basis. Many high power LEDs are currently on the market, such as 0.7 A and 1 A devices. However, the most commonly used LEDs are those with a current of 0.350 A.

This demonstration board is designed for 350 mA LEDs and is capable of driving three 1 W LEDs in series with high-precision constant current (± 5% tolerance). The design is based on the VIPer22AE, which combines a dedicated current mode PWM controller with a high voltage power MOSFET on the same silicon chip.

The internal control circuit offers a large input voltage range on the VDD pin, accommodates changes in auxiliary supply voltage, and supports automatic burst mode in low load conditions. The board also features protections against overtemperature, overcurrent and overvoltage conditions.

Key Features

  • 230 VAC input version with no electrolytic capacitor
  • LED short-circuit protection
  • RoHS compliant
  • Input voltage: 90 to 265 VRMS
  • Capable of driving 3 x 1 W LEDs in series with high-precision constant current (± 5% tolerance)
  • Provides 350 mA constant current for LEDs
  • LED open circuit protection
  • EN55015 & EN6100-3-2 compliant
  • Overtemperature protection

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Design

Technical Documentation

Product Specifications
Description Version Size
DB0927 DB0927: 3 W non-isolated offline LED driver demonstration board based on the VIPer22A-E 2.1 140 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
Gerber files for STEVAL-ILL026V1 board 1.0 181 KB
Bill of Materials
Description Version Size
BOM for STEVAL-ILL026V1 board 1.0 19 KB
Schematic Packs
Description Version Size
Board schematics for STEVAL-ILL026V1 board 1.0 10 KB

Legal

License Agreement
Description Version Size
Evaluation products license agreement 1.0 125 KB
Support & Community
Related Applications

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ILL026V1 VIPER22ASTR-E Active 64.93 1 NEC EAR99 ITALY MORE INFO Buy Direct Add to cart DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-ILL026V1 ActiveCARDIndustrialEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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