HV9805 Description
The HV9805 driver integrated circuit (IC) is targeted at general LED lighting products, such as LED lamps and LED lighting fixtures with a maximum power rating of about 25W at 120VAC and about 50W at 230VAC. A two-stage topology provides true constant current drive for the LED load while drawing mains power with high power factor. The first stage, a boundary conduction mode boost converter, transfers power from the...
HV9805 Key Features
- Provides True DC Light and protects load from line voltage transients
- Driver topology includes
- Boundary Conduction Mode (BCM) Boost Converter with Power Factor Correction a) High Power Factor (98% typical) b) High E
- Linear Post-Regulator with Low Overhead Voltage a) Zero LED Current/Brightness Ripple b) Overvoltage Protection for LEDs
- Simple VDD Supply
- No Auxiliary Winding Required
- Boost Converter Cascode Switch
- Internal Switch rated at 700 mA peak
- Supports up to 25W at 120VAC
- Supports up to 50W at 230VAC