EVALHVLED805

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製品概要

概要

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.

特徴
Input voltage range (V_IN): 185 - 265 V_AC

Main frequency (f_L): 50 - 60 Hz

Maximum (rated) output power: 4.2 W

Output: I_OUT= 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
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