LX24132AILQ datasheet, PDF - EEWORLD Datasheet

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LX24132AILQ: DescriptionLED Driver 5000uA Supply Current 56-Pin QFN EP; File Size1MB，53 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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LX24132AILQ Overview

LED Driver 5000uA Supply Current 56-Pin QFN EP

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OMPANY

ONFIDENTIAL

LX24132AILQ - 32 Port Display Backlight LED

Controller

DESCRIPTION

The LX

24132A is a 32 Port Display Backlight LED Controller. The

device is part of a chipset where each LX

24132A is capable of

controlling four LX

23108L 8 Port LED Drivers. Each LX

23108L 8

Port LED Driver contains eight FETs driving and controlling up to 4 x 8

LED channels, where each channel is capable of driving a current of up

to 200 mA.

The LX

24132A's internal power supply control circuitry adjusts the

voltage level of an external LED power source. This is done by

regulating the LED supply voltage to the optimum level, thus minimizing

the system power loss. At the same time, accurate current regulation

for each of the 32 LED strings is maintained.

The LX

24132A 32 Port Display Backlight LED Controller is configured

through the SPI interface which speeds up communication and reduces

the number of control signals between the LX

24132A and the Host

system (FPGA, Video Processor, CPU). The LX

24132A supports a

daisy chain connection in cases where more than 32 different LED

Controllers (different PWM/Duty cycle) are required. PWM output

signals can be synchronized with an external Video Processor V-Sync

signal.

Each one of the 32 PWM channels can be enabled/disabled by

external one out of four SCAN0-3 input pins.

The LX 24132A 32 Port Display Backlight LED Controller can detect

three types of system faults on each of its 32 channels

(over-temperature, open LEDs and short LEDs). After detecting the

faults the unit takes the required measures to protect the system.

KEY FEATURES

White or RGB LEDs Backlight

controller for large size display

panels

Up to 32 LED strings with ±2%

precision current matching

Wide dimming ratio with PWM and

LED current amplitude control

12-bit PWM duty-cycle resolution

and 8-bit resolution for LED current

setting

LED power supply voltage control

Automatic minimum FET Vd report

SPI communication interface

Open string, short LED and over-

temperature protection for each

individual channel

On-chip thermal monitoring

Synchronization to external input

pulse (Sync-In)

Enable/Disable PWM output by four

input pins (SCAN0-3)

Internal power supply trimming

DAC

WWW.

Microsemi

COM

IMPORTANT:

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

http://www.microsemi.com

PACKAGE ORDER INFO

(°C)

-40° to +85° C

Plastic MLPQ 8 x 8mm QFN 56 pin

RoHS Compliant/Pb free/MSL1

LX24132AILQ

Note

: Available in Tape & Reel. Add the letters ”TR” to the part number (LX24132AILQ -TR).

LX24132AILQ

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