LXM1612-05-02 MICROSEMI, LXM1612-05-02 Datasheet - Page 4
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LXM1612-05-02
Manufacturer Part Number
LXM1612-05-02
Description
Manufacturer
MICROSEMI
Datasheet
1.LXM1612-05-02.pdf
(6 pages)
Specifications of LXM1612-05-02
Operating Temperature Classification
Commercial
Pin Count
10
Lead Free Status / RoHS Status
Not Compliant
Copyright © 2000
Rev. 1.0a, 2005-01-10
lamp current magnitude to adjust light output, RangeMAX
inverters use a fixed lamp current value with a duty cycle control
method.
(continuous lamp current) down to a 2% duty cycle, allowing the
lamp to be dimmed to less than 1% of its full brightness.
design consideration was given to controlling lamp start voltage
to softly start current flow. This eliminates current overshoot that
can result in premature cathode wear and reduce lamp life.
LAMP VOLTAGE & LAMP CURRENT – Burst Mode Operation
Rather than using the traditional dimming technique of varying
The lamp current burst width can be modulated from 100%
As can be seen in Trace 4 of Figure 3 photo at right, careful
I N T E G R A T E D
Figure 1 – 50% Burst Duty Cycle
2.5V
0.25 -
DC
V
V
SYNC
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
BRITE
Ramp Gen
Ramp
P R O D U C T S
+
-
Comparator
H O W R A N G E M A X W O R K S
Figure 4 – RangeMAX Block Diagram
Linfinity Microelectronics Division
Microsemi
Transform er
I
SENSE
Driver
5V Highly-Integrated, Digital Dimming CCFL Inverter Module
V
SENSE
Figure 3 – 2% Burst Duty Cycle (Expanded Time Base)
High Voltage
Transform er
P
RODUCTION
Figure 2 – 2% Burst Duty Cycle
D
ATASHEET
V
V
LXM1612-05-xx
LO
HI
Page 4