MP4031 TRIAC and Analog Dimmable, Primary-SideControlled Offline LED Controller with Active PFC The Future of Analog IC Technology DESCRIPTION FEATURES The MP4031 is a TRIAC and analog dimmable, Primary-Side-Control without Secondary-Side primary-sidecontrolled, offline LED lighting Feedback controller with active PFC. It can output an Internal Charging Circuit at the Supply Pin for accurate LED current for an isolated lighting Fast Start-Up application with a single-stage converter. The Accurate Line Regulation proprietary real-currentcontrol method can High Power Factor accurately control the LED current using primary- Operates in Boundary Conduction Mode side information. It can significantly simplify LED Flicker-Free, Phase-Controlled TRIAC lighting system design by eliminating secondary- Dimming with Expanded Dimming Range. side feedback components and the optocoupler. Analog-Dimming Compatible The MP4031 implements power-factor correction Cycle-by-Cycle Current Limit and works in boundary-conduction mode to Over-Voltage Protection reduce MOSFET switching losses. Over-Load Protection Over-Temperature Protection The MP4031 has an integrated charging circuit at Available in an 8-Pin SOIC Package the supply pin for fast start-up without a perceptible delay. APPLICATIONS The proprietary dimming control expands the Solid-State Lighting, including: TRIAC-based dimming range. o Industrial and Commercial Lighting o Residential Lighting The special current sense structure can implement analog dimming. 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. The MP4031 has multiple protections that greatly MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. enhance system reliability and safety, including over-voltage protection, overload protection, supply-pin under-voltage lockout, and over- temperature protection. All fault protections feature auto-restart. The MP4031 is available in an 8-pin SOIC package. MP4031 Rev.1.03 www.MonolithicPower.com 1 9/5/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. MP4031PRIMARY-SIDECONTROLLED, OFFLINE LED CONTROLLER WITH PFC TYPICAL APPLICATION Analog Dimming Application N:1 EMI Filter MP4031 1 MULT COMP ZCD GND VCC D CS /DIM S V A DIM Analog with Triac Dimming Application MP4031 Rev.1.03 www.MonolithicPower.com 2 9/5/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved.