Copyright © 2009

Microsemi

2381 Morse Avenue, Irvine, CA 92614, USA; Within the USA: (800) 713-4113, Outside the USA: (949) 221-7100 Fax: (949) 756-0308

10

LX23108L- 8 Port LED Driver

Datasheet

C

Y

C

L

D E S C R I P T I O N

A P P L I C A B L E

D O C U M E N T S

K E Y F E A T U R E S

Microsemi’s LX

LED Driver used to drive LED strings.

The

LX23108L

has

eight

internal

current limiters with high bandwidth

PWM controls used to maintain the

required LED current.

The LX23108L is controlled and driven

by the LX

Backlight LED Controller.

Each LX24132 can control up to four

LX23108Ls. The LX23108L can drive

currents of up to 100 mA @ 100%

PWM, or 200 mA @ 50% PWM. The

device is designed to operate with

external

sense

resistors

used

for

scaling

the

LEDs

currents.

Such

configuration

provides

maximum

flexibility for the system designers to

change

the

LED

current

while

maintaining high accuracy.

A dedicated per channel PWM control

signal

coming

from

the

LX24132

enables/disables each of the eight

channels. The LX23108L is available

in a 32 pin, 5 mm x 5 mm QFN

package.

 LX24132/ LX23108L AN-182

Designing a Low Current LED BL

Driver System, Catalogue

Number 06-0077-080

 LX24132 Datasheet

32 Port LED Driver Catalogue

Number 06-0073-058



Excellent thermal performance.



High current accuracy: ± 2%

overall chipset (LX24132 and

LX23108L) precision current

accuracy



Driving capability (Constant –

Current Sink) 0 mA to 100 mA

@ 100% PWM, or 200 mA @

50% PWM



Per channel PWM signal



Fault detection and protection:



Open string



Short LED



Over-temperature

protection per channel

IMPORTANT: For the most current data, consult Microsemi's website:

http://www.microsemi.com

PACKAGE ORDER INFO

Plastic 5 x 5 mm QFN 32 pin

RoHS compliant / Pb free

-40 to +85

C

LX23108LILQ

Note: Available in Tape & Reel. Append the letters ”TR” to

the part number. (i.e. LX23108LILQ-TR)