LXMG1621-04 Microsemi Analog Mixed Signal Group, LXMG1621-04 Datasheet - Page 8

• Manufacturer Part Number: LXMG1621-04
• Description: MOD INVERTER CCFL DIM DUAL 5MA
• Manufacturer: Microsemi Analog Mixed Signal Group
• Series: LXMG1621r
• Type: Inverters for CCFL and UV Lampsr

Specifications of LXMG1621-04

• Voltage - Input: 12V
• Output: 1800V
• Size / Dimension: 4.88" L x 1.26" W (124mm x 32mm)
• Mounting Type: Chassis Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LXM1621-04R; LXM1621-04R

Copyright © 2007
Rev. 1.2, 2010-08-20
HIGHLIGHTS (CONTINUED)
•
In applications with no access to a vertical sync, the
inverter burst frequency can be allowed to “free run” at
95Hz.
disturbances may be found under certain video conditions.
This performance is acceptable for many applications, but
synchronization must be used when no disturbance can be
tolerated.
< 10k
* use 4.99k for 5V PWM amplitude, 15k for 3.3V PWM
amplitude, and omit for 2.5V PWM amplitute.
TM
from System
PWM Signal
Figure 8 - PWM Brightness Control
2.5V
V
0
0 < P.W. < 100% of period
SYNC
< 100µs
In this non-synchronous mode, minor display
DC
5V
P.W.
Figure 7- Brightness Control
SLEEP
BRITE
4.99k*
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
4.99k
V
LXMG1621-xx
SYNC
H O W T H E R A N G E M A X W O R K S ( C O N T I N U E D )
12V
V
IN
GND
4.7µF
LXMG1621-
BRITE
V
V
V
T Y P I C A L A P P L I C A T I O N
HI2
HI1
LO
xx
Analog Mixed Signal Group
®
Microsemi
RangeMAX™
•
•
•
•
•
D
IGITAL
The brightness control may be a simple 10k potentiometer
or a voltage output DAC. A PWM signal from a micro-
controller may also be used with a suitable filter such as
shown in figure 8.
If synchronization to the video frame rate is desired,
connect the vertical sync pulse from the system video
controller to the appropriate V
synchronization is desired, connect V
If you need to turn the inverter ON/OFF remotely, connect
a 3V or 5V logic signal to the SLEEP input. If remote
ON/OFF is not needed, connect the SLEEP input to V
any other voltage greater than 2.2V
Connect V
V
If both lamp wires have heavy high voltage insulation,
connect the longest wire to V
to ground (GND pin) on the inverter PCB. Always insure
a good lamp return by using a wire. Do not rely on a
chassis ground connection
Also available in single lamp inverters are the
LXMG1612-12-xx or LXMG1615-xx-xx, as well as the
12V dual lamp LXMG1623-xx-xx, LXMG1622-12-xx,
and the Quad output LXMG1643-12-6x versions for
multiple lamp applications.
Separate feedback loops for lamp current and open circuit
voltage regulation insure reliable strike under all operating
conditions, automatic over-voltage prevention with broken
or failed lamps, and accurate lamp current regulation.
LO
to the low voltage wire (wire with thinner insulation).
D
IMMING
P
RODUCTION
R a n g e M A X I N V E R T E R S
HI
to high voltage wire from the lamp. Connect
D
UAL
L
AMP
D
CCFL I
ATA
.
LO
S
. V
NVERTER
HEET
SYNC
LXMG1621-xx
DC
LO
SYNC
.
is connected directly
input. If no video
M
to ground.
ODULE
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