MP4021A Primary Side Control Offline LED Controller with Active PFC The Future of Analog IC Technology DESCRIPTION FEATURES The MP4021A is a primary-sidecontrol offline Real current control without secondary- LED lighting controller that achieves high power feedback circuit factor and accurate LED current for isolated Typical 1.5% load regulation single-power-stage lighting applications in a Unique architecture for superior line single SOIC8 package. The proprietary real- regulation current control method accurately controls LED High power factor 0.9 over universal input current from primary-side information. Eliminating voltage the secondary-side feedback components and Boundary conduction mode improves the optocoupler significantly simplifies the LED efficiency lighting system design. Ultra-low (20A) start-up current Low (1mA) quiescent current The MP4021A integrates power factor correction and works in boundary conduction mode to Input UVLO reduce the MOSFET switching losses. Cycle-by-cycle current limit Over-voltage protection The extremely low start-up current and quiescent Short-circuit protection current reduces the total power consumption and Over-temperature protection provides a high-efficiency solution for lighting Available in an SOIC8 package applications. The multi-protection features of MP4021A greatly APPLICATIONS enhance system reliability and safety. The Solid-state lighting MP4021A features over-voltage protection, short- Industrial and commercial lighting circuit protection, cycle-by-cycle current limiting, Residential lighting V UVLO, and auto-restart over-temperature CC All MPS parts are lead-free and adhere to the RoHS directive. For MPS green protection. status, please visit MPS website under Products, Quality Assurance page. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. The MP4021A is under patent pending. TYPICAL APPLICATION MP4021A Rev.1.05 www.MonolithicPower.com 1 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP4026 & MP4027MP4021APRIMARY SIDE CONTROL OFFLINE LED CONTROLLER WITH ACTIVE PFC ORDERING INFORMATION Part Number* Package Top Marking SOIC8 MP4021GS-A MP4021-A * For Tape & Reel, add suffix Z (e.g. MP4021GS-AZ) PACKAGE REFERENCE TOP VIEW MULT COMP 1 8 ZCD FB 2 7 VCC 3 6 GND 4 5 GATE CS SOIC8 (4) (1) Thermal Resistance JA JC ABSOLUTE MAXIMUM RATINGS SOIC8 ...................................96......45... C/W Input Voltage V ......................... -0.3V to +30V CC ZCD Pin............................................ -7V to +7V Notes: Other Analog Inputs and Outputs..... -0.3V to 7V 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the Max. Gate Current ....................................1.2A (2) maximum junction temperature T(MAX), the junction-to- J Continuous Power Dissipation (T = +25C) A ambient thermal resistance , and the ambient temperature JA SOIC8........................................................1.3W T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX)=(T (MAX)- D J Junction Temperature..............................150C T )/ . Exceeding the maximum allowable power dissipation A JA Lead Temperature ...................................260C will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry Storage Temperature...............-65C to +150 C protects the device from permanent damage. (3) 3) The device is not guaranteed to function outside of its Recommended Operating Conditions operation conditions. 4) Measured on JESD51-7 4-layer board. Supply Voltage V ....................... 10.3V to 23V CC Operating Junction Temp. (T ). -40C to +125C J MP4021A Rev.1.05 www.MonolithicPower.com 2 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP4026 & MP4027