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HVLED805 based evaluation board: 4.2 W isolated LED driver with primary side current regulation
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The EVALHVLED805 is a demonstration board equipped with the new HVLED805 PWM current mode LED driver and is designed for European mains. It can control, with very good accuracy, from 1 to 3 LEDs having a nominal current of 350 mA. The HVLED805 has integrated high voltage startup and an 800 V power MOSFET. The high MOSFET's breakdown voltage allows very robust and reliable applications and reduces the size of the snubber and the relative power dissipation. Its accurate primary-current control eliminates the need of the optocoupler which impacts the cost, the compactness and the lifetime of the application while still maintaining a very good LED accuracy (below 5 %). Moreover, this converter, specifically designed for quasi-resonant (QR) flyback converters, enables very low turn-on losses and EMI emissions.

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Errata Sheet
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Data Brief

Key Features

  • Input voltage range (VIN): 185 - 265 VAC
  • Main frequency (fL): 50 - 60 Hz
  • Maximum (rated) output power: 4.2 W
  • Output: IOUT= 350 mA ± 5%
  • Over voltage = 12 V max
  • Current ripple < 10% IOUT
  • Minimum switching frequency in normal mode: 70 kHz
  • Target average efficiency (from 1 to 3 LEDs) > 70 %
  • Maximum input power in no-load < 100 mW


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1225: 4.2 W off-line LED driver with primary side regulation
2.0 571 KB

Hardware Resources

Board Manufacturing Specification

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Gerber files for EVALHVLED805 board
1.0.0 43 KB

Bill of Materials

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BOM for EVALHVLED805 board
1.0.0 38 KB

Schematic Pack

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Board Schematics for EVALHVLED805 board
1.0.0 54 KB

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