EVALHVLED805 HVLED805 evaluation board: insulated LED driver with primary current control
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.
技术特性
- 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%
- 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
| 功能框图
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EVALHVLED805 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| EVALHVLED805 |
Preview |
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1000 |
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DATA BRIEF
| 描述 |
版本 |
大小 |
| EVALHVLED805 : DB1225: 4.2 W off-line LED driver with primary side regulation |
2 |
571KB |
BILL OF MATERIALS
SCHEMATIC PACKS
PCB LAYOUTS
