LXM1653-01 View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
Manufacturer
LXM1653-01 Datasheet PDF : 6 Pages
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Conn.
CN1
CN1-1
CN1-2
CN1-3
CN1-4
CN1-5
CN1-6
CN1-7
CN1-8
CN2
CN2-1
CN2-2
PRODUCT DATABOOK 1996/1997
FLOATING OUTPUT DRIVE, CCFL INVERTER MODULES
PR E L I M I N A RY D ATA S H E E T
P ATENT P ENDING
LXM1653-01
FUNCTIONAL PIN DESCRIPTION
Pin
Description
VIN
GND
SLEEP
BRITE
AGND
VREF
Input voltage. (+6.5 to +18V )
DC
Power supply return.
Logical high on this pin enables inverter operation. Logical low removes power from the module and
the lamp. A floating input is sensed as a logical low and will disable inverter operation. If not used,
connect SLEEP to V .
IN
Brightness control input. Apply 0.0 to 2.0 volts DC to control lamp brightness. Lamp current varies
linearly with input voltage. Open circuit or 2.0V gives maximum brightness. This input may also be
driven with a PWM logic signal. See Application Notes Section.
Brightness control signal return. For best results do not run VIN power supply return current through this pin.
Reference Voltage Output. 2.5V @ 500µA max. For use with external dimming circuit.
LAMP HI
LAMP LO
High-voltage connection to high side of lamp. Connect to lamp terminal with shortest lead length. Do
not connect to ground.
High-voltage connection to low side of lamp. Connect to lamp terminal with longer lead length.
This lead may be safely connected to ground, but may not result in specified performance depending on
system wiring and lamp characteristics.
APPLICATION DIAGRAM
9.0
8.0
7.0
6.0
5.0
4.0
3.0
6
7
8
9
VIN - (Volts DC)
10 18
FIGURE 1 — MAXIMUM LAMP CURRENT vs. INPUT VOLTAGE FOR TYPICAL LAMP VOLTAGES
Copyright © 1997
Rev. 0.1 3/97
3
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