The MP4032-1 is a TRIAC-dimmable, primary-side controlled, offline, LED lighting driver with an integrated 500V MOSFET. It can achieve a high power factor and accurate LED current control for lighting applications in a single-stage converter. The proprietary real-current control can accurately control the secondary-side LED current using primary-side information. It simplifies LED lighting systems and increases efficiency by removing the secondary feedback components and the current-sensing resistor. The MP4032-1 has a power-factor correction function and works in boundary-conduction mode that reduces power losses. The DRAIN pin can supply current to the internal charging circuit for start-up without a perceptible delay. The proprietary dimming control extends the TRIAC-based dimming range. The multiple protections greatly enhance system reliability and safety. These protections include VCC under-voltage lockout, LED over-voltage and over-current protections, short-circuit protection, and over-temperature protection. The MP4032-1 is available in an SOIC8-7A package.
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The EV4032-1-S-00AEvaluation Board is designed to demonstrate the capabilities of MP4032-1. The MP4032-1 is a TRIAC-dimmable, primary-side‑controlled, offline, LED lighting driver with an integrated 500V MOSFET. It can achieve a high power factor and accurate LED current control for lighting applications in a single-stage converter.. It works in boundary conduction mode for reducing the MOSFET and Diode switching losses.
The EV4032-1-S-00A is typically designed for driving a 6.5W Triac dimmable LED bulb with 18VTYP, 350mA LED load from 108VAC to 132VAC, 60Hz.
The EV4032-1-S-00A has an excellent efficiency and meets IEC61547 surge immunity, IEC61000-3-2 Class C harmonics and EN55015 conducted EMI requirements. It has multi-protection function as over-voltage protection, short-circuit protection, cycle by cycle current limit, etc.