OB2530N
Overview
- Primary-side sensing and regulation without power switch for low power AC/DC charger and TL431 and opto-coupler adapter applications. It operates in primary-side
- High precision constant voltage and current sensing and regulation. Consequently, regulation at universal AC input opto-coupler and TL431 could be eliminated.
- Multi-mode PWM/PFM operation for efficiency Proprietary Constant Voltage (CV) and Constant improving Current (CC) control is integrated as shown in the
- Integrated 1A 620V MOSFET figure below.
- Good dynamic response In CC control, the current and output power setting
- Programmable CV and CC regulation can be adjusted externally by the sense resistor
- Built-in primary winding inductance Rs at CS pin. In CV control, multi-mode operations compensation are utilized to achieve high performance and high
- Programmable cable drop compensation efficiency. In addition, good load regulation is
- No need for control loop compensation achieved by the built-in cable drop compensation.
- Audio noise free operation Device operates in PFM in CC mode at large load
