UC3501

UNISONIC TECHNOLOGIES CO., LTD UC3501 Preliminary CMOS IC HIGH EFFICIENT, LOW COST FLASHLIGHT LED DRIVE  DESCRIPTION UTC UC3501 is Flashlight ASIC chip, Using LSI technology, Specifically designed for single dry battery, Plus 1 of inductors, May constitute a drive circuit for LED flashlights.  FEATURES * High efficiency:85%~90% * Low cost * Simply add-ins one inductor  ORDERING INFORMATION Package TO-92 TO-92 Pin Assignment 1 2 3 O D G O D G Packing Tape Box Bulk Order Number Lead Free Halogen Free UC3501L-T92-B UC3501G-T92-B UC3501L-T92-K UC3501G-T92-K Note: Pin Assignment: G: GND D: VDD O: OUT  MARKING INFORMATION PACKAGE UTC UC3501 1 MARKING TO-92 L: Lead Free G: Halogen Free Data Code www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 4 QW-R502-A63.b Free Datasheet http://www.Datasheet4U.com UC3501  BLOCK DIAGRAM Preliminary CMOS IC VDD OSCILLATOR ERROR AMPLIFIER VFM CONTROL VOUT VREF VIX LIMITER GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R502-A63.b Free Datasheet http://www.Datasheet4U.com UC3501  ABSOLUTE MAXIMUM RATING Preliminary CMOS IC PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 6 V Output Current IOUT 150 mA Operating Junction Temperature TJ -40~85 °C Storage Temperature TSTG -55~150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ...