BP9938D Overview
BP9938X is a high precision Buck constant current LED driver. The device operates in critical conduction mode and is suitable for 85Vac~265Vac universal input offline LED lighting. The BP9938X integrates a 500V power MOSFET.
BP9938D Key Features
- No VCC Capacitor and Startup Resistor
- Internal 500V Power MOSFET
- Integrated HV JFET for IC Power Supply
- No Auxiliary Winding
- Critical Conduction Mode Operation
- ±5% LED Output Current Accuracy
- LED Short Protection
- VCC Under Voltage Protection
- Thermal Regulation Function
- Available in SOT33-4 Package