AL8812

AL8812 BOOST/BUCK DC-DC CONVERTER FOR DIMMABLE MR16 LED LAMPS Description The AL8812 is a monolithic control circuit containing the primary functions required for DC-to-DC converters with MOSFET in one package. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. Additionally a 60V, 3.6A MOSFET is integrated for reduced BOM cost and size. This series is specifically designed for buck and boost applications with a minimum number of external components. Pin Assignments NC 1 GATE 2 INPUT 3 VCC 4 SENSE 5 DRIVE 6 12 DRAIN 11 SOURCE 10 TIMING 9 GND 8 SW/E 7 SW/C U-DFN6040-12 Features Operation from 3.0V to 20V Input Integrated 60V, 3.6A MOSFET Low Standby Current Current Limiting Output Voltage Adjustable Frequency Operation to 100 kHz Precision 2% Reference Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Applications Low Voltage LED Lighting such as MR-16 General Purpose DC-DC Converter Notes: 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 <900ppm bromine, <900...