MP4032-1 Primary-Side-Controlled, Offline LED Driver with Fully-Integrated Internal MOSFET The Future of Analog IC Technology DESCRIPTION FEATURES Real Current Control without Secondary The MP4032-1 is a TRIAC-dimmable, primary- Feedback Circuit side-controlled, offline, LED lighting driver with an integrated 500V MOSFET. It can achieve a Internal MOSFET with 500V High Voltage high power factor and accurate LED current Rating control for lighting applications in a single-stage Less than 6W Output Power converter. The proprietary real-current control Internal Charging Circuit for Fast Start-Up can accurately control the secondary-side LED Accurate Line Regulation current using primary-side information. It Flicker-Free, Phase-Controlled TRIAC simplifies LED lighting systems and increases Dimming with Extended Dimming Range efficiency by removing the secondary feedback High Power Factor components and the current-sensing resistor. Boundary-Conduction Mode VCC UVLO The MP4032-1 has a power-factor-correction Cycle-by-Cycle Current Limiting function and works in boundary-conduction mode that reduces power losses. The DRAIN Over-Voltage Protection pin can supply current to the internal charging Short-Circuit Protection circuit for start-up without a perceptible delay. Over-Temperature Protection The proprietary dimming control extends the Available in SOIC8-7A Package TRIAC-based dimming range. APPLICATIONS The multiple protections greatly enhance Solid-State Lighting system reliability and safety. These protections Industrial and Commercial Lighting include VCC under-voltage lockout, LED over- Residential Lighting voltage and over-current protections, short- circuit protection, and over-temperature All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. protection. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. The MP4032-1 is available in an SOIC8-7A The MP4032-1 is patent pending. package. Warning: Although this board is designed to satisfy safety requirements, the engineering prototype has not been agency approved. Therefore, all testing should be performed using an isolation transformer to provide the AC input to the prototype board. MP4032-1 Rev. 1.02 www.MonolithicPower.com 1 7/15/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved. MP4032-1PRIMARY-SIDE-CONTROLLED, OFFLINE LED DRIVER WITH FULLY-INTEGRATED MOSFET TYPICAL APPLICATION TRIAC Damper Dimmer EMI & Filter Bleeder COMP DRAIN MULT ZCD CS VCC GND MP4032-1 MP4032-1 Rev. 1.02 www.MonolithicPower.com 2 7/15/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved.