Part Number : BP9022
Manufacturers : Bright Power Semiconductor
Function : Precision PSR LED constant current driver chip
BP9022 is a high precision primary side feedback constant current LED driver chips. Chip inductor current in discontinuous mode for 85Vac ~ 265Vac full range of input voltage, power 5W or less anti-Excited isolated LED constant current power supply. BP9022 chip integrated 650V power switch, use the primary.
The feeding mode, without secondary feedback circuitry, and without compensation circuitry. It requires minimal external components to achieve excellent constant current characteristic. Collection With a patented drive and current detection methods, chip operating current pole Low, no transformer auxiliary winding detection and power supply, further reducing External components, greatly saving system cost and size.
BP9022 chip inside with high-precision current sampling circuit, while mining With the patented constant current control technology, can achieve high-precision LED Constant Stream output and excellent line voltage regulation. By adjusting the external resistor LED open-circuit voltage can be precisely controlled.
1. Internal integrated 650V power MOSFET
2. PSR constant current control without secondary feedback circuitry
3. No transformer auxiliary winding detection and power supply
4. LED open-circuit voltage can be adjusted by external resistor
5. The chip ultra low operating current
Datasheet Download : [ BP9022.PDF ]