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@TDK
• All specifications are subject to change without notice.
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001-01 / 20030905 / ea442_cxam1112.fm
Power Supplies CXA Series CXA-M1112-VJ
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.
TEMPERATURE AND HUMIDITY RANGES
SHAPES AND DIMENSIONS
TERMINAL NUMBERS AND FUNCTIONS
CN1
CN2 CN3
Temperature range
(°C)
Operating 0 to +60
Storage –30 to +85
Humidity range(%)RH 95max.
[Maximum wet-bulb temperature 38°C]
Connector manufacturer’s company and type Symbol
1 Input connector Japan Solderless Terminal Co., Ltd. S5B-PH-SM3 CN1
2 Output connector Japan Solderless Terminal Co., Ltd. SM02(8.0)B-BHS-1 CN2
3 Output connector Japan Solderless Terminal Co., Ltd. SM02(8.0)B-BHS-1 CN3
Terminal No. Functions Symbol
CN1-1 Input voltage Edc: 8 to 20V 12V[nom.] Vin
CN1-2 0V GND
CN1-3 Brightness dimmer voltage Edc: 0 to 3.4V
(Maximum brightness on 0V) Vbr
CN1-4 Alarm output: 0V in abnormal state VST
CN1-5 Remote voltage Edc 0V: off/5 to 7V:on Vrmt
18±0.15
(3.5)
25.3max.
146.5±0.2
80±0.2
180.3max.
(3.5)
313-ø3±0.1 2PWB∗1
CN2
CN3
8max.
CN1
1-1
1-5
2-1
3-1
50∗2
50∗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
Terminal No. Functions Symbol
CN2-1 Output 1[High voltage] Irms 2 to 5.5mA VHIGH1
CN2-2 ——N.C.
CN2-3 Output 1[Low voltage] (2V) VLOW1
Terminal No. Functions Symbol
CN3-1 Output 2[High voltage] Irms 2 to 5.5mA VHIGH2
CN3-2 ——N.C.
CN3-3 Output 2[Low voltage] (2V) VLOW2
n 51
@TDK
• All specifications are subject to change without notice.
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001-01 / 20030905 / ea442_cxam1112.fm
Power Supplies CXA Series CXA-M1112-VJ
DC to AC Inverters
Connector type, Dimming, 7W, For 2 Bulbs
ELECTRICAL CHARACTERISTICS
∗1Vbr also operates as a remote function as follows:
0 to 3.5V: Operated
4.5V or higher: Operation stopped
∗2An 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.
TYPICAL CONNECTIONS
EXAMPLE OF VOLTAGE DIMMER CONTROL
EXAMPLE OF POTENTIOMETER DIMMER CONTROL
NO DIMMER CONTROL
∗1 Vrmt (remote voltage) shall be ON after Vin was ON.
∗2 SW a:on, b:off
BRIGHTNESS DIMMER VOLTAGE-OUTPUT CURRENT
CHARACTERISTICS
Items Unit Symbol Specifications Conditions Brightness
min. typ. max. Vin(V) Vrmt(V) Vbr(V)∗1Ta(°C) RL1(kΩ)R
L2(kΩ)
Output current Irms mA
Iout1/lout2 4.6 5.5 6.3 8 to 20 5±0.25 0 0 to 60 90 to 120 90 to 120 Maximum
Iout1/lout2 4.9 5.5 6 12±1.2 5±0.25 0 25±5 110 110 Maximum
Iout1/lout2 —2 2.5 8 to 20 5±0.25 3.5 0 to 60 335 335 Minimum
Input current Idc A Iin —0.71 1.37 8 to 20 5±0.25 0 to 3.5 0 to 60 90 to 120 90 to 120
Oscillation frequency kHz FL30 35 40 8 to 20 5±0.25 0 0 to 60 110 110
Open circuit output voltage Erms V Vopen 1400 1500 —8 to 20 5±0.25 0 to 3.5 0 to 60 ∞∞
Alarm output Edc V VST
Vrmt-0.5 Vrmt —8 to 20 5±0.25 0 to 3.5 0 to 60 90 to 335 90 to 335
When lamps
are normally
turned on
—0 0.5 8 to 20 5±0.25 0 to 3.5 0 to 60 ∞∞
When lamps
are abnormal
(OFF state)
—0 0.5 8 to 20 5±0.25 0 to 3.5 0 to 60 90 to 335 ∞
When lamps in
one side only
are turned on
—0 0.5 8 to 20 5±0.25 0 to 3.5 0 to 60 ∞90 to 335
When lamps in
one side only
are turned on
Alarm output delay time sec —3∗211 ————— —
VST
Vrmt
0
3sec typ.
Occurrence of OFF state.
Time(t)
Alarm output drops from
HIGH to LOW.
a∗2
b
Vin
9.6 to
14.4V
Vbr
0 to 1.3V
Vrmt∗1
5 to
14.4V
CN2-1
CN2-3
CN3-1
CN3-3CN1-4
CN1-3
CN1-5
CN1-2
CN1-1
RL
(CCFL)
RL
(CCFL)
a∗2
b
Vin
8 to 20V
CN2-1
CN2-3
CN3-1
CN3-3CN1-4
CN1-3
CN1-5
CN1-2
CN1-1
R
L1
(CCFL)
R
L2
(CCFL)
Vbr
0 to 3.5V
Vrmt∗
1
5 to 7V
a∗
2
b
Vin
8 to 20V
CN2-1
CN2-3
CN3-1
CN3-3CN1-4
CN1-3
CN1-5
CN1-2
CN1-1
R
L1
(CCFL)
R
L2
(CCFL)
ex
10kΩ
Vbr
3.5V
Vrmt∗
1
5 to 7V
Vin
8 to 20V
CN2-1
CN2-3
CN3-1
CN3-3CN1-4
CN1-3
CN1-5
CN1-2
CN1-1
R
L1
(CCFL)
R
L2
(CCFL)
Vrmt∗
1
5 to 7V
0
0
1
2
3
4
5
6
1234 65
Brightness dimmer voltage Vbr(V)
Output current Iout(mA)
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