
D
IRECT
D
RIVE
Q
UAD
L
AMP
CCFL I
NVERTER
M
ODULE
LXM1640-01
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
Copyright 1998
Rev. 0.4 5/98
2
P
R E L I M I N A R Y
D
A T A
S
H E E T
R E C O M M E N D E D O P E R AT I N G C O N D I T I O N S
(R.C.)
This module has been designed to operate over a wide range of input and output conditions. However, best efficiency and performance
will be obtained if the module is operated under the condition listed in the '
R.C.
' column. Min. and Max. columns indicate values beyond
which the inverter, although operational, will not function optimally.
Input Supply Voltage Range (Functional)
Output Power (per Lamp)
Brightness Control Input Voltage Range
Lamp Operating Voltage
Lamp Current (Full Brightness - per Lamp)
Operating Ambient Temperature Range
V
IN
P
O
V
BRT ADJ
V
LAMP
I
OLAMP
T
A
Parameter
Symbol
Units
Recommended Operating Conditions
Min.
R.C.
Max.
10.8
12
4
13.2
5
5.0
800
V
W
V
V
RMS
mA
RMS
°C
0.0
300
675
6.0
0
40
E L E C T R I C A L C H A R A C T E R I S T I C S
Unless otherwise specified, these specifications apply over the recommended operating conditions and 25°C ambient temperature for the LXM1640.
Full Bright Lamp Current (per Lamp)
Minimum Lamp Current (per Lamp)
(Note 2)
I
L (MAX)
I
L (MIN)
V
BRT ADJ
= 5.0V
DC
, SLEEP = HIGH, V
IN
= 12V
DC
V
BRT ADJ
= 0V
DC
, SLEEP = HIGH, V
IN
= 12V
DC
Lamp Start Voltage
Operating Frequency
BRITE Input
Input Current
Input Voltage for Max. Lamp Current
Input Voltage for Min. Lamp Current
SLEEP Input
V
LS
f
O
0°C < T
A
< 40°C, V
IN
≥
10.8V
DC
V
BRT ADJ
= 5.0V
DC
, SLEEP = HIGH, V
IN
= 12V
DC
Output Pin Characteristics
Parameter
Symbol
Test Conditions
Units
LXM1640-01
Min.
Typ.
Max.
5.4
6.0
0.5
6.6
mA
RMS
mA
RMS
1500
52
1800
62
V
RMS
KHz
57
I
BRT
V
C
V
C
V
BRT ADJ
= 0V
DC
I
O (LAMP)
= 100%
I
O (LAMP)
= Minimum
27
30
5.0
0
33
μA
DC
V
DC
V
DC
2.2
-0.3
90
V
IN
0.8
150
V
DC
V
DC
μA
DC
110
RUN Mode
SLEEP Mode
Input Current
Power Characteristics
Sleep Current
V
SLEEP (HI)
V
SLEEP (LO)
I
SLEEP
SLEEP = 5.0V
Note 2. Minimum lamp current required to maintain even light output may vary with display panel.
A B S O L U T E M A X I M U M R AT I N G S
(Note 1)
Input Supply Voltage (V
)....................................................................................................................................................... -0.3V to 16V
Output Voltage, no load ..............................................................................................................................Internally Limited to 1800V
Output Current (per Lamp) ........................................................................................................................ 10.0mA
(Internally Limited)
Output Power (per Lamp) .................................................................................................................................................................... 6.0W
Input Signal Voltage, (SLEEP and BRITE Inputs)..................................................................................................................... -0.3V to V
IN
Ambient Operating Temperature, zero airflow ........................................................................................................................0°C to 40°C
Storage Temperature Range................................................................................................................................................... -40°C to 85°C
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative
out of the specified terminal.
I
IN (MIN)
V
IN
= 12V
DC
, SLEEP = 0V
DC
0
10
500
μA
DC