LXMG1960-28-01 Microsemi Analog Mixed Signal Group, LXMG1960-28-01 Datasheet

LXMG1960-28-01

Manufacturer Part Number

LXMG1960-28-01

Description

LED MODULE 6-STRING BOOST DRIVER

Manufacturer

Microsemi Analog Mixed Signal Group

Datasheet

1.LXMG1960-28-01.pdf (8 pages)

Specifications of LXMG1960-28-01

Voltage - Input

4.75 ~ 28V

Voltage - Output

35V

Current - Output

25mA

Power (watts)

5.5W

Mounting Type

Panel Mount

Termination Style

Terminal Block

Size / Dimension

2.72" L x 1.10" W x 0.24" H (69mm x 27.9mm x 6mm)

Operating Temperature

-30°C ~ 80°C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Rev. 1.1, 2009-11-25

white LED driver for medium size LCD

LED backlight panels. It is designed to

drive up to six strings of LEDs to a

maximum of 35V at up to 25mA per string.

converter and six programmable 10-25 mA

precision current sinks. It is designed to

work over a wide input voltage range

(4.75V to 28V) providing maximum

flexibility.

boost only design requiring the input

supply voltage to not exceed the output

LED string voltage.

BRITE_A which adjusts the LED display

brightness by controlling the amplitude of

the LED string current.

and can be controlled by a PWM signal,

the application of a DC control voltage or

use of a potentiometer tied as a rheostat.

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

Patents Pending

Analog – Current Amplitude

LXMG1960-28-0x module is a boost

The module consists of a boost

The module provides a dimming input:

The BRITE_A input is very flexible

DIMMING INPUT:

LXMG1960-28-01

LXMG1960-28-03

Part Number

Dimming

However the converter is a

11861 Western Avenue, Garden Grove, CA. 92841, 800-877-6458, 714-898-8121, Fax: 714-893-2570

Voltage Range

4.75V to 28V

Wide Input

D E S C R I P T I O N

Supports Multi-Method

DC Voltage

Source

Analog Dimming

Molex 53261-0871 or

Input Connector

typically provides for 1% percent string to

string matching at the rated output current.

The magnitude of the string current is

easily programmed, in 1mA steps through

an on board DIP switch.

voltage protection (OVP), and short and

open LED protection. If one string opens,

its current sink will be disabled and the

other strings will continue to operate

normally. Likewise if one or several LEDs

in a string short it will continue to function

with no adverse affect on the other strings.

With the use of an external thermistor the

module can provide LED current fold back

in an over temperature situation.

factor PCB and uses an 8 pin input and one

of two output connectors.

Potentiometer

equivalent

O R D E R I N F O R M A T I O N

P R O D U C T H I G H L I G H T

CN1

Precision

The LXMG1960-28-0x includes over

Analog Mixed Signal Group

The module comes in a small form

Microsemi

PWM Signal

LXMG1960-28-01

http://www.microsemi.com

current

•

6-String 5W LED Backlight Boost Driver Module

mirror

SW1

SW2

SW3

SW4

Hirose DF14A-15P-1.25H or equivalent

circuitry

LXMG1960-28-0x

RODUCTION

Molex 53261-0771 or equivalent

String Current From

Programmable LED

10mA to 25mA in

1mA Steps

Externally

Output Connector

• Drives Up To 6 String LED Panels

• Strings Can Be Combined For

• Wide Input Voltage 4.75V-28V

• String Voltage Up To 35V

• LED String Current Programmable

• 1% Typical String-to-String

• Analog Dimming Provides For a

• Supports Multiple Methods Of

• Over Voltage Protection

• LED Over Temperature Protection

• Medium Size White LED Backlight

• Portable Instrumentation Displays

• Medical Instrument Displays

Higher Current

in 1mA Steps from 10 to 25mA

For Matching Various Panel

Requirements

Current Matching

10:1 Ratio

Dimming Such As DC Voltage,

PWM Signal and Potentiometer

Input

LCD Displays

CN2

ATASHEET

K E Y F E A T U R E S

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

Drives Six String LED

Panels. LED String

Voltage up to 35V

Current Matching

String-to-String

Precision

Page 1

Related parts for LXMG1960-28-01

LXMG1960-28-01 Summary of contents

Page 1

... With the use of an external thermistor the module can provide LED current fold back in an over temperature situation. The module comes in a small form factor PCB and uses an 8 pin input and one of two output connectors. http://www.microsemi.com LXMG1960-28-01 CN1 SW1 SW2 SW3 SW4 DC Voltage Potentiometer ...

Page 2

... Strings IN LED LED V = 12V;V = 31.2V 25mA; 6 Strings IN LED LED Open all output strings Fault Timeout V = 12V 31.2V 25mA; IN LED LED 6 Strings L H Microsemi Analog Mixed Signal Group LXMG1960-28-0x D RODUCTION ATASHEET R.C. Max Units 12 28 2.2 35 Min Typ Max 4. 100 1.25 1.5 ...

Page 3

... Delta current SW1~4 = OFF to DIP-SW2= ON Delta current SW1~4 = OFF to DIP-SW3= ON Delta current SW1~4 = OFF to DIP-SW4= ON VDIP-SW1 0. CSX At the lowest CS pin 25mA; CSX Rated LED current Microsemi Analog Mixed Signal Group LXMG1960-28- RODUCTION ATASHEET Min Typ Max 400 500 600 100 25000 2.5 5 ...

Page 4

... Analog Dimming Input. BRITE_A 0~2.5V→Io 10%~100%. 100Hz<f <25kHz, 3.3V PWM and CN1-7 BRITE_A 500kohms Rheostat are Equivalent Dimming Methods. Open = Maximum Programmed String Current CN1 Connect, Leave This Pin Open CN2 (Molex 53261-0771) for LXMG1960-28-01 CN2-1 Anode Common LED High Side Drive Voltage CN2-2 CSA Channel A Cathode Sink Driver CN2-3 ...

Page 5

... OFF ON OFF ON OFF OFF ON OFF ON OFF ON OFF DOWN - OFF 4 Microsemi Analog Mixed Signal Group LXMG1960-28- RODUCTION ATASHEET Notes 10mA Minimum String current 11mA 12mA 13mA 14mA 15mA 16mA 17mA 18mA 19mA 20mA 21mA 22mA 23mA 24mA 25mA Maximum String Current Page 5 ...

Page 6

... OUNTING H 3.18 ±.08 DIA. OLE MM 49.88mm ±0.2 1.96in. SW1 SW2 SW3 SW4 69 mm 2.72in. PCB tolerances ± 0.5mm , M3 recommended mounting screws Microsemi Analog Mixed Signal Group LXMG1960-28- RODUCTION ATASHEET LED High Side Drive Voltage 1 2 CSA 3 4 CSB 5 6 CSC 7 8 CSD ...

Page 7

... Schottky diode. Likewise if any of the low side current sink drivers (CSx) are directly shorted to ground it will result in damage to the fuse, Schottky diode and possibly the LED string. Microsemi Analog Mixed Signal Group LXMG1960-28- RODUCTION ATASHEET Therefore the input voltage should not ...

Page 8

... Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © 2009 Rev. 1.1, 2009-11-25 11861 Western Avenue, Garden Grove, CA. 92841, 800-877-6458, 714-898-8121, Fax: 714-893-2570 LXMG1960-28-0x 6-String 5W LED Backlight Boost Driver Module ® P RODUCTION ...

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