OB3399UAP-H Overview
OB3399x is a primary side regulation off-line LED lighting power switch which can achieve accurate LED current. It significantly simplifies LED lighting system design by eliminating the secondary side feedback circuitry. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below.
OB3399UAP-H Key Features
- High Precise Constant Current Regulation at
- Primary-side Sensing and Regulation Without
- HV MOSFET integrated
- Adjustable Constant Current and Output
- Adjustable Constant Voltage Load
- Built-in Primary Winding Inductance
- Built-in Leading Edge Blanking (LEB)
- Cycle-by-Cycle Current Limiting
- VDD Under Voltage Lockout with Hysteresis
- Latched over temperature protection (OTP)