LXMG1930-28-01 Microsemi Analog Mixed Signal Group, LXMG1930-28-01 Datasheet

LED MODULE 3-STRING BOOST DRIVER

LXMG1930-28-01

Manufacturer Part Number
LXMG1930-28-01
Description
LED MODULE 3-STRING BOOST DRIVER
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet

Specifications of LXMG1930-28-01

Voltage - Input
4.75 ~ 28V
Voltage - Output
35V
Current - Output
15mA ~ 50mA
Power (watts)
6.2W
Mounting Type
Panel Mount
Termination Style
Terminal Block
Size / Dimension
2.72" L x 1.098" W x 0.236" H (69mm x 27.9mm x 6.0mm)
Operating Temperature
-30°C ~ 80°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Copyright © 2009
Rev. 1.1, 2009-11-25
white LED driver for medium size LCD
LED backlight panels. It is designed to
drive up to three strings of LEDs to a
maximum of 35V at up to 50mA per string.
converter and three programmable 15 to 50
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
LXMG1930-28-0x 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:
LXMG1930-28-01
LXMG1930-28-03
LXMG1930-28-04
Part Number
TM
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
Molex 53261-0871 or equivalent
Source
Analog Dimming
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 5mA 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 three output connectors.
Potentiometer
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 LXMG1930-28-0x includes over
Analog Mixed Signal Group
The module comes in a small form
Microsemi
®
PWM Signal
LXMG1930-28-01
http://www.microsemi.com
current
3-String 5W LED Backlight Boost Driver Module
mirror
SW1
SW2
SW3
SW4
P
circuitry
LXMG1930-28-0x
Kyocera 04-6298-006-000-883+ or equivalent
RODUCTION
Hirose DF19G-8P-1H or equivalent
String Current From
Molex 53261-0471 or equivalent
Programmable LED
15mA to 50mA in
5mA Steps
Externally
Output Connector
• Drives Up To 3 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
• Output Over Voltage Protection
• LED Over Temperature Protection
• Medium Size White LED Backlight
• Portable Instrumentation Displays
• Medical Instrument Displays
CN4
Higher Current
in 5mA Steps from 15mA to 50mA
For Matching Various Panel
Requirements
Current Matching
10:1 Ratio
Dimming Such As DC Voltage,
PWM Signal and Potentiometer
Input
LCD Displays
D
ATASHEET
K E Y F E A T U R E S
A P P L I C A T I O N S
String Voltage up to 35V
String LED Panels. LED
String-to-String Current
Drives Up To Three
Precision
Matching
Page 1

Related parts for LXMG1930-28-01

LXMG1930-28-01 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 three output connectors. http://www.microsemi.com LXMG1930-28-01 CN1 SW1 SW2 SW3 SW4 DC Voltage Potentiometer ...

Page 2

... LED LED V = 12V 31.2V 50mA LED LED Strings Open All Output Strings Fault Timeout V = 12V 31.2V 50mA LED LED Strings L DIP-SW1 Microsemi Analog Mixed Signal Group LXMG1930-28-0x D RODUCTION ATASHEET R.C. Max Units 12 28 2.2 35 DIP-SW1 open IN Min Typ Max 4. 100 1.5 ...

Page 3

... Delta current SW1~3 = OFF to DIP-SW1= ON Delta current SW1~3 = OFF to DIP-SW2= ON Delta current SW1~3 = OFF to DIP-SW3= ON VDIP-SW1 0. CSX At the lowest CS pin 50mA; CSX DIP- SW1 Rated LED current Microsemi Analog Mixed Signal Group LXMG1930-28- RODUCTION ATASHEET ; DIP-SW1 open IN Min Typ Max 400 500 600 100 25000 2 ...

Page 4

... Common LED High Side Drive Voltage CN3-6 CSC Channel C Cathode Sink Driver CN3 Connect CN3 Connect CN4 (Molex 53261-0471) for LXMG1930-28-01 CN4-1 Anode Common LED High Side Drive Voltage CN4-2 CSA Channel A Cathode Sink Driver CN4-3 CSB Channel B Cathode Sink Driver ...

Page 5

... LED Backlight Boost Driver Module ® SW3 (20mA) SW4 (not used) LED String Current OFF OFF OFF OFF DOWN - OFF 4 Microsemi Analog Mixed Signal Group LXMG1930-28- RODUCTION ATASHEET Notes 15mA Minimum String current 20mA 25mA 30mA 35mA 40mA 45mA 50mA Maximum String Current Page 5 ...

Page 6

... DIA. OLE MM 49.88mm ±0.2 1.96in. SW1 SW2 SW3 SW4 53.48mm ±0.2 2.11in 2.72in. PCB tolerances ± 0.5mm , M3 recommended mounting screws Microsemi Analog Mixed Signal Group LXMG1930-28- RODUCTION ATASHEET LED High Side Drive Voltage 1 2 CSA 3 4 CSB 5 6 CSC 1 CSA ...

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 LXMG1930-28- 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 LXMG1930-28-0x 3-String 5W LED Backlight Boost Driver Module ® P RODUCTION ...

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