A8280 Datasheet | AiT Semiconductor

DESCRIPTION FEATURES The A8280 is a CMOS based White/Blue LED driver - 8-channel output with stand-alone capability. The driver is primarily - 2.7 to 5.5V input range designed for LED backlighting of LCD display - PWM dimming control, suggested 1KHz powered by Li-ion battery. With its high efficiency, - LED sink current of 20m A low standby current and wide range of input supply - Independent current sink circuit for each LED voltage, the A8280 is suitable for applications such output as portable device display and keypad backlighting. - Low standby current There are eight identical channels in A8280, each of - High accuracy current match on each channel which can drive one LED by current rating of 20m A. - Available in QFN16(3x3) Package The A8280 is available in QFN16(3x3) package. APPLICATION ORDERING INFORMATION Package Type Part Number QFN16 (3x3) A8280Q16R Q16 A8280Q16VR Note R: Tape & Reel V: Green Package Ai T provides all Pb free products Suffix “ V “ means Green Package - LCD screen backlights driver - Mobile phone, portable device keypad backlights driver TYPICAL APPLICATION REV1.0 - SEP 2011 RELEASED - -1- Ai T Semiconductor Inc. .ait-ic. PIN DESCRIPTION 8-CH LED BACKLIGHT DRIVER WLED LINEAR DRIVER Pin # 1 2 3 4 5 6 7 8, 10, 11, 12, 13 9 14 15 16 Symbol D6 D5 D4 D3 D2 D1 GND NC EN VIN D8 D7 Top View Function RGB or WLED Cathode Connection Pin RGB or WLED Cathode Connection Pin RGB or WLED Cathode Connection Pin RGB or WLED Cathode Connection Pin RGB or WLED Cathode Connection Pin RGB or WLED Cathode Connection Pin Ground No connect Chip Enable and Dimming Control Power supply RGB or WLED Cathode Connection Pin RGB or WLED Cathode Connection...