JH5553B
Description
The JH5553B（LP/H） is a high precision non-isolated buck driver with active PFC, specially designed for universal input offline constant current LED lighting. The driver with on-chip PFC circuit achieves high power factor and low THD. Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is fully utilized.
The JH5553B（ LP/H） integrates a 650V power MOSFET. With few external ponents, the LED output current can be precisely controlled.
The JH5553B（LP/H） remove the VCC capacitor,P capacitor and RCS resistor to simplify the external BOM. And it utilizes patented current detection,with few external ponents,it achieves high precision output current,excellent line regulation and load regulation.
Features
- Active-PFC for High PF and Low THD.
- No VCC and P capacitor.
- Integrated current sense resister.
- Critical Conduction Mode Operation.
- LED Short Protection.
- Cycle by Cycle Current Limit.
- Thermal Regulation Function.
- Adopts...
