■ FEATURES BL8581  BL8581

No external component required

PWM dimming control available

Low noise and EMI

LED sink current of 20mA

Independent current sink circuit for each LED

output

Versatile supply voltage range

Low standby current

High accuracy current match on each channel

■ APPLICATIONS BL8581  BL8581

Small Size Color LCD Backlights Driver

Mobile Phone, Portable Device Keypad

Backlights Driver

■ DESCRIPTOIN

The BL8580/1 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 BL8580/1

is suitable for applications such as portable

device display and keypad backlighting.

In portable application, three or

four-channel LED solutions are popular.

BL8580 has three LED channels with a

SOT-23-6 package. BL8581 has four LED

channels with a SOP-8 package BL8581  BL8581
 BL8581  BL8581
 BL8581  BL8581
 BL8581  BL8581
 BL8581  BL8581
 BL8581  BL8581
 BL8581  BL8581 BL8581  BL8581 BL8581  BL8581 BL8581  BL8581