LX23108A MICROSEMI [Microsemi Corporation], LX23108A Datasheet

LX23108A

Manufacturer Part Number

LX23108A

Description

8 Ports LED Back Light High Voltage Driver

Manufacturer

MICROSEMI [Microsemi Corporation]

Datasheet

1.LX23108A.pdf (2 pages)

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LED strings with a variable current of

up to 200mA peak.

LED strings supply voltage through an

external DC/DC converter; minimizing

the power dissipation while regulating

the LED currents for all 8 strings.

LX23108A - is a compact 8 Ports White

or RGB back light LED Driver, to be

used in large display notebooks, LCD

monitors, and TV sets. It is designed to

work together with the LX24132 LED

Controller as a chipset, driving up to 32

LX23108A provides the LX24132 LED

Controller

samples, that facilitate the control of the

Current regulation is maintained within

a ± 3 percent.

The LX23108A LED Driver includes 8

High Bandwidth Current Limiter Cells

with PWM Control (ON/OFF Signal).

The chip is designed to operate with

external

configuration

flexibility for system designers when

scaling up or down the LED currents for

meeting a wide range of high accuracy

application requirements.

IMPORTANT: For the most current data, consult MICROSEMI’s website:

http://www.microsemi.com

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

Sense

with

provides

its

Resistors.

PACKAGE ORDER INFO

MLPQ

In addition, the

ports

RoHS Compliant / Pb-free

D E S C R I P T I O N

LX23108AHILQ

(i.e. LX23108AILQ-TR)

LX23108ALILQ

maximum

voltage

Plastic 7 x 7mm 32 pin

Plastic 5 x5mm 32 pin

Such

The LX23108A LED Driver enables a

wide

through a combination of LED current

amplitude

control. In addition, the chipset

provides a thermally robust solution

through advanced system control;

including Drain Voltage Sensing for

Open/Shorts events and per string

Thermal Protection monitoring.

The LX23108A is offered in both

5x5mm

packages.

dimming

and 7x7mm 32 pin QFN

and

PWM

range,

duty-cycle

8 Ports LED Back Light High Voltage Driver

achieved

device/pc-board system. All of the above assume no ambient airflow.

The θ

•

THERMAL RESISTANCE

Junction Temperature Calculation: T

THERMAL RESISTANCE

numbers are guidelines for the thermal performance of the

22.5 ° C/W According to the JESD51-7

27.5 ° C/W According to the JESD51-7

White LED, or RGB Backlight Driver for

large size display panels

Up to 8 LED strings with ± 0.5% precision

current matching.

Wide dimming ratio with PWM duty-cycle

and LED current amplitude controls.

12 bit PWM duty-cycle resolution –

controlled by LX24132 LED Controller.

8 bit resolution for LED current setting –

controlled by LX24132 LED Controller.

Open string, short LED and Over-

Temperature protection per individual

channel.

LCD Monitor and TV

Large Signage Display

T H E R M A L D A T A

DATA SHEET

K E Y F E A T U R E S

A P P L I C A T I O N S

(°C) -40 to 85

JUNCTION TO AMBIENT

= T

+ (P

LX23108A

x θ

Related parts for LX23108A

LX23108A Summary of contents

Page 1

... LX23108A - is a compact 8 Ports White or RGB back light LED Driver used in large display notebooks, LCD monitors, and TV sets designed to work together with the LX24132 LED Controller as a chipset, driving LED strings with a variable current 200mA peak ...

Page 2

... RoHS / Pb-free Matte Tin Finish / MSL LX23108A PSEL_IN 24 THERM_OUT 23 VDMEAS 22 VIO 21 Exposed Pad Connected to AGND VREF 20 VCC 19 PSEL_CLK 18 PSEL_OUT LX23108AL (Top View) ...

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