LXM1653-01 View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
Manufacturer
LXM1653-01 Datasheet PDF : 6 Pages
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P ATENT P ENDING
LXM1653-01
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
TYPICAL APPLICATIONS
AC/DC
Adapter
R2, 25k
Sytem Battery
(NiCd, NiMH, etc.)
3.3 or 5V
R1
100k
From Power
Management
Logic
CMOS
or TTL
VREF
BRITE
SLEEP
VIN
LAMP HI
LXM1653
LAMP LO
AGND
GND
FIGURE 21 — NOTEBOOK SYSTEM APPLICATION
2.0VDC
1K TO
100K
BRITE
12VDC
VIN
LAMP HI
LXM1653
ON / OFF
SLEEP
GND
LAMP LO
CCFL
TUBE
CFL
TUBE
Inside
LCD
Panel
FIGURE 22 — POTENTIOMETER BRIGHTNESS CONTROL
+5V
+5V
U1
S1
"Increase"
47k
N.O.
R1
UC
RH
From Logic
(optional)
D
RW
N.O.
DC
RL
S2
"Decrease" 47k
+5V
VREF
BRITE
AGND
LXM1653
• S1 & S2 are momentary push buttons,
normally open contacts.
• U1 = 100k digital pot.
• R1 value optional for choosing dimming
range.
FIGURE 23 — NONVOLATILE DIGITAL BRIGHTNESS CONTROL
4
Copyright © 1997
Rev. 0.1 3/97
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