OB OB3396AP

OB3396 is a primary side regulation off-line LED lighting controller 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. OB3396 is a cost effective PWM controller optimized for off-line LED lighting applications which can achieve LED current. Based on flyback converter topology working in DCM mode, It operates in primary side sensing and regulation, thus opto-coupler and TL431 are not required. Proprietary built-in CC control can achieve high precision LED current meeting LED lighting application requirements.

• High Precise Constant Current Regulation at Universal AC input
• Primary-side Sensing and Regulation Without TL431 and Opto-coupler
• Programmable CC Regulation
• Adjustable Constant Current and Output Power Setting
• Built-in Secondary Constant Current Control with Primary Side Feedback
• Built-in Adaptive Current Peak Regulation
• Built-in Primary winding inductance compensation
• Power on Soft-start
• Built-in Leading Edge Blanking (LEB)
• Cycle-by-Cycle Current Limiting
• VDD Under Voltage Lockout with Hysteresis (UVLO)
• VDD OVP
• VDD Clamp

• Low Power AC/DC offline SMPS for LED applications