A8280

AiT Semiconductor Inc. www.ait-ic.com A8280 8-CH LED BACKLIGHT DRIVER WLED LINEAR DRIVER 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 20mA 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 20mA.  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 AiT 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- AiT Semiconductor Inc. www.ait-ic.com PIN DESCRIPTION A8280 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 Connectio...