BL8582 Datasheet, PDF (1/6 Pages) SHANGHAI BELLING CO., LTD. – Single-Wire Dimming, 3-Channels WLED Linear Drive

BL8582
Single-Wire Dimming, 3-Channels WLED Linear Drive
DESCRIPTION
The BL8582 is a CMOS based White/Blue
LED driver with stand-alone capability. The
driver is primarily designed for LED
backlighting of LCD display powered by Li-ion
battery With its high efficiency, low standby
current and wide range of input supply
voltage, the BL8582 is suitable for
applications such as portable device display
and keypad backlighting. It can realize
dimming control through EN pin. Inner the
device, there is a 4-bit counter, so the LED
current can be set at 16 levels with 1/15 Imax
step. BL8582 has three LED channels with a
SOT-23-6 package.
FEATURES
• 2.7 to 5.5V input range
• Single-wire dimming control with linear
16-steps.
• PWM dimming control
• LED sink current of max. 20mA
• Independent current sink circuit for each
LED output
• Low standby current
• High accuracy current match on each
channel
APPLICATIONS
• Small Size Color LCD Backlights Driver
• Mobile Phone, Portable DeviEN Keypad
Backlights Driver
TYPICAL APPLICATION
www.belling.com.cn
1