AL8821SP-13

AL8821 50V, 2A BOOST LED DRIVER Pin Assignments The AL8821 is a boost converter that delivers an accurate constant current for MR16 and similar LED Lamps. With proprietary control scheme, the LED driver is compatible with many commonly used electronic transformers and provides designs with High Power Factor (PF) and low Total Harmonic Distortion (THD) for these applications. The operation frequency is up to 1MHz that allows the use of small size inductor. With the package of SO-8EP, the AL8821 has small thermal resistance and can be used for wide range of output power. The driver can be used for dimmable MR16 application and can be compatible with leading-edge dimmer and trailing-edge dimmer. (Top View) 8 NC 7 VCC 3 6 VIN 4 5 NC SW 1 CS 2 FB COMP EP Features  Wide Input Voltage Range: 5V to 36V  Internal 50V NDMOS Switches  Continuous Conduction Mode (CCM) Operation  Up to 1MHz Switching Frequency Applications  High PF > 0.9 and Low THD < 30% and Low Ripple < 20%  Compatible With Leading-edge Dimmer And Trailing-edge Dimmer     Internal Protections   Under Voltage Lock Out (UVLO)  Output Open  Over Temperature Protection (OTP) Pb-free SO-8EP  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3) Notes: SO-8EP Non-dimmable MR16 Lamps Dimmable MR16 Lamps General Illumination Lamps 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain