LX23108L Datasheet, PDF (1/2 Pages) Microsemi Corporation – 8 Port LED Driver

COMPANY CONFIDENTIAL
LX23108L- 8 Port LED Driver
Datasheet
DESCRIPTION
APPLICABLE
DOCUMENTS
Microsemi’s LX^®23108L is an 8-Port
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^®24132 32 port Display
Backlight LED Controller.
 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
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.
KEY FEATURES
 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
T_A (C)
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)
Copyright © 2009
Microsemi
10
2381 Morse Avenue, Irvine, CA 92614, USA; Within the USA: [phone], Outside the USA: [phone] Fax: [phone]