EVALHVLED805：HVLED805 based evaluation board: 4.2 W isolated LED driver with primary side current regulation
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.
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
产品规格
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
许可协议
样片和购买
| 型号 | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| EVALHVLED805 | HVLED805 | 24.50 | - | NEC | EAR99 | - |
质量和可靠性
| 型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| EVALHVLED805 | CARD | Industrial | Not compliant | |
