(1/2)
001-01 / 20030905 / ea442_cxam1112.fm
Power Supplies
DC to AC Inverters
Connector type, Dimming, 7W, For 2 Bulbs
FEATURES
• The CXA-M1112-VJ is an inverter for cold cathode fluorescent
lamps and features a built-in dimmer.
• Because they employ advanced output current control, fluctua-
tions in input voltage, load, and distributed capacitance have vir-
tually no effect on brightness.
• Output open and short circuit conditions result in no damage,
heat generation, or other difficulties.
• The CXA-M1112-VJ has an overvoltage protection device and a
temperature fuse built-in, thereby achieving a safety design.
• An alarm output function mounted on the CXA-M1112-VJ is use-
ful to detect an occurrence of an error in lamps.
• Insulation is simplified due to flat backside surface of board.
SHAPES AND DIMENSIONS
180.3max.
146.5±0.2
(3.5)
80±0.2
CXA Series CXA-M1112-VJ
TEMPERATURE AND HUMIDITY RANGES
Operating 0 to +60
Storage
–30 to +85
95max.
Humidity range(%)RH
[Maximum wet-bulb temperature 38°C]
Temperature range
(°C)
25.3max.
CN3
18±0.15
3-1
1-1
1-5
CN2
2-1
CN1
(3.5)
3
50
∗
2
8max.
3-ø3±0.1
1
PWB
∗
1
50
∗
2
2
∗
1
Substrate (PWB: Printed wiring board): Flame retardant UL94V-0(FR-4 or CEM-3) t=1mm
∗
2
:
High-voltage generator (The entire surface within a range of 50mm away from the end of the base
in the output)
Weight: 21g typ.
Dimensions in mm
1
2
3
Input connector
Output connector
Output connector
Connector manufacturer’s company and type
Japan Solderless Terminal Co., Ltd.
Japan Solderless Terminal Co., Ltd.
Japan Solderless Terminal Co., Ltd.
S5B-PH-SM3
SM02(8.0)B-BHS-1
SM02(8.0)B-BHS-1
Symbol
CN1
CN2
CN3
TERMINAL NUMBERS AND FUNCTIONS
CN1
Terminal No.
CN1-1
CN1-2
CN1-3
CN1-4
CN1-5
Functions
Input voltage Edc: 8 to 20V 12V[nom.]
0V
Brightness dimmer voltage Edc: 0 to 3.4V
(Maximum brightness on 0V)
Alarm output: 0V in abnormal state
Remote voltage Edc 0V: off/5 to 7V:on
Symbol
Vin
GND
Vbr
V
ST
Vrmt
CN2
Terminal No.
CN2-1
CN2-2
CN2-3
Functions
Output 1[High voltage] Irms
—
Output 1[Low voltage]
2 to 5.5mA
—
(2V)
Symbol
V
HIGH1
N.C.
V
LOW1
CN3
Terminal No.
CN3-1
CN3-2
CN3-3
Functions
Output 2[High voltage] Irms
—
Output 2[Low voltage]
2 to 5.5mA
—
(2V)
Symbol
V
HIGH2
N.C.
V
LOW2
• All specifications are subject to change without notice.
(2/2)
001-01 / 20030905 / ea442_cxam1112.fm
Power Supplies
DC to AC Inverters
Connector type, Dimming, 7W, For 2 Bulbs
ELECTRICAL CHARACTERISTICS
Items
Output current Irms
Unit
mA
Specifications
min.
typ.
Iout1/lout2 4.6
5.5
Iout1/lout2 4.9
5.5
Iout1/lout2 —
2
Iin
—
0.71
F
L
30
35
Vopen
1400
1500
Symbol
max.
6.3
6
2.5
1.37
40
—
CXA Series CXA-M1112-VJ
Input current Idc
A
Oscillation frequency
kHz
Open circuit output voltage Erms V
Conditions
Vin(V)
Vrmt(V)
8 to 20 5±0.25
12±1.2 5±0.25
8 to 20 5±0.25
8 to 20 5±0.25
8 to 20 5±0.25
8 to 20 5±0.25
8 to 20
5±0.25
Vbr(V)
∗1
0
0
3.5
0 to 3.5
0
0 to 3.5
0 to 3.5
Ta(°C)
0 to 60
25±5
0 to 60
0 to 60
0 to 60
0 to 60
0 to 60
R
L1
(kΩ)
90 to 120
110
335
90 to 120
110
∞
Vrmt
-0.5
Vrmt —
—
Alarm output Edc
V
V
ST
—
0
0.5
8 to 20
5±0.25
0 to 3.5
0 to 60
0
0.5
8 to 20
5±0.25
0 to 3.5
0 to 60
—
Alarm output delay time sec
∗1
0
3
∗2
0.5
11
8 to 20
—
5±0.25
—
0 to 3.5
—
V
ST
Vrmt
0 to 60
—
—
Brightness
R
L2
(kΩ)
90 to 120 Maximum
110
Maximum
335
Minimum
90 to 120
110
∞
When lamps
90 to 335 90 to 335 are normally
turned on
When lamps
∞
∞
are abnormal
(OFF state)
When lamps in
90 to 335
∞
one side only
are turned on
When lamps in
∞
90 to 335 one side only
are turned on
—
—
3sec typ.
Alarm output drops from
HIGH to LOW.
∗2
Vbr also operates as a remote function as follows:
0 to 3.5V: Operated
4.5V or higher: Operation stopped
An alarm output is a detection terminal for detecting an OFF state of the lamps, with a delay
time from an occurrence of the OFF state (See the diagram).
For details of the alarm output, see the individual specifications.
0
Time(t)
Occurrence of OFF state.
TYPICAL CONNECTIONS
EXAMPLE OF VOLTAGE DIMMER CONTROL
Vin
Vin
8 to 20V
9.6 to
14.4V
Vrmt
Vrmt
∗
1
∗
1
5 5 to 7V
to
14.4V
2
a
∗
a
∗
2
BRIGHTNESS DIMMER VOLTAGE-OUTPUT CURRENT
CHARACTERISTICS
6
Output current Iout(mA)
R
L
R
L1
(CCFL
(CCFL) )
5
4
3
2
1
0
0
1
2
3
4
5
6
(V )
Brightness dimmer voltage Vbr
CN1-1
CN1-1
CN1-2
CN1-2
CN1-5
CN1-5
Vbr
Vbr
0 1.3V
0 to to 3.5V
CN1-3
CN1-3
CN1-4
CN1-4
CN2-1
CN2-1
CN2-3
CN2-3
CN3-1
CN3-1
R
L
R
L2
(CCFL
(CCFL) )
CN3-3
CN3-3
b b
EXAMPLE OF POTENTIOMETER DIMMER CONTROL
Vin
8 to 20V
Vrmt
∗
1
5 to 7V
a
∗
2
Vbr
3.5V
ex
10kΩ
CN1-1
CN1-2
CN1-5
CN1-3
CN1-4
CN2-1
R
L1
(CCFL)
CN2-3
CN3-1
R
L2
(CCFL)
CN3-3
b
NO DIMMER CONTROL
Vin
8 to 20V
Vrmt
∗
1
5 to 7V
CN1-1
CN1-2
CN1-5
CN1-3
CN1-4
∗1
∗2
CN2-1
R
L1
(CCFL)
CN2-3
CN3-1
R
L2
(CCFL)
CN3-3
Vrmt (remote voltage) shall be ON after Vin was ON.
SW a:on, b:off
• All specifications are subject to change without notice.