BL8088 Datasheet, PDF (1/5 Pages) SHANGHAI BELLING CO., LTD. – 8-Channel WLED Linear Driver

DESCRIPTION
The BL8088 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 BL8088 is suitable for
applications such as portable device display and
keypad backlighting. There are eight identical
channels in BL8088, each of which can drive one
LED by current rating of 20mA.
BL8088 is available with QFN 3X3-16 package
TYPICAL APPLICATION
Vin
VIN
1uF
D1
EN
B^LC8¹0⁹8⁸⁸
EN
D2
D3
D4
D5
GND
D6
D8 D7
BLOCK DIAGRAM
BL8088
8-Channel WLED Linear Driver
FEATURES
 8-channel output
 2.7 to 5.5V input range
 PWM dimming control, suggested 1KHz
 LED sink current of 20mA
 Independent current sink circuit for each LED
output
 Low standby current
 High accuracy current match on each channel
APPLICATIONS
 LCD screen backlights driver
 Mobile phone, portable device keypad
backlights driver
PIN ASSIGNMENT
NC NC NC EN
NC
NC
VIN
KD
GND
LLNYW
D8
D1
D7
D2
D6 D5 D4 D3
www.belling.com.cn
1