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002-01 / 20051130 / ea422_cxap1212.fm
• All specifications are subject to change without notice.
DC to AC Inverters
Connector type, Dimming, 8W, for 2 Bulbs
CXA Series CXA-P1212A-WJL
FEATURES
• Optimum one-connector, two-output design for thin liquid crystal
panel displays.
• This inverter carries a PMW(pulse modulation width) circuit,
TDK’s unique circuit design. This allows dimming of lighting
over a much wider range than is possible using conventional
types of dimmer circuits. The type of dimmer control can be
selected as desired, either voltage control(Vbr:0 to 1.6V) or
resistance control(VR:0 to 10kΩ).
• Built-in overcurrent protection circuit increases safety.
• Monitor brightness is always kept stable since the built-in current
feedback illumination stabilization circuit compensates for
inverter input voltage variation(±10%).
• The board backside is free of wiring pattern. Cost reduction and
simplified mounting are made possible by a design that only
uses one side of the board.
• Operational safety is increased by the use of two types of insula-
tion for high voltage components.
• It is a product conforming to RoHS directive.
APPLICATIONS
Various types of color liquid crystal displays, computer touch pan-
els, controllers, medical devices, ATMs, POS terminals, telecom-
munication terminals, microscope monitors, fishdetectors, ticket
sales machines, amusement arcade machines.
TEMPERATURE AND HUMIDITY RANGES
SHAPES AND DIMENSIONS
TERMINAL NUMBERS AND FUNCTIONS
CN1
∗According to a connection method, either a voltage control brightness
adjustment or a resistance control brightness adjustment can be selected
as follows:
Voltage control brightness adjustment: 0V → Maximum brightness
adjustment (Maximum light volume), 0.6V → Minimum brightness
adjustment (Minimum light volume)
Resistance control brightness adjustment: 0Ω → Maximum brightness
adjustment (Maximum light volume), 10kΩ → Minimum brightness
adjustment (Minimum light volume)
CN2
Conformity to RoHS Directive
Temperature range
(°C)
Operating –10 to +70
Storage –30 to +85
Humidity range(%)RH 95max.
[Maximum wet-bulb temperature 38°C]
Connector manufacturer’s company and type Symbol
1 Input connector Molex Japan Co., Ltd. 53261-0771 CN1
2 Output connector Japan Solderless Terminal Co., Ltd. SM03(7-D1)B-BHS-1 CN2
12±0.3 107±0.3
147±0.5
1 2
∗1∗2
CN1-1
CN1-7
(1.6)3.5±0.314±0.34±0.3
21.5±0.5
24max.
10max.
2-ø3.5±0.2
(2)
75∗3
CN1
CN2
2-1
∗
1
Substrate(PWB: Printed wiring board): Flame retardant material UL 94V-0(FR-4 or CEM-3)
∗
2
Voltage protection insulating cover t=0.38mm
∗
3
: High-voltage generator (The entire surface within a range of 75mm away from the end of
the basein the output)
Weight: 24.5g typ.
Dimensions in mm
Terminal No. Functions Symbol
CN1-1,-2 Input voltage Edc: 10.8 to 13.2V 12V[nom.] Vin
CN1-3,-4 0V GND
CN1-5 Remote voltage Edc 0V: off/5 to 13.2V:on Vrmt
CN1-6 Brightness dimmer terminal: GND/0 to 10kΩ∗Vbr1/VR1
CN1-7 Brightness dimmer terminal: 0 to 0.6V/0 to 10kΩ∗Vbr2/VR2
Terminal No. Functions Symbol
CN2-1 Output 1[High voltage] Irms 2 to 6mA VHIGH1
CN2-2 Output 2[High voltage] Irms 2 to 6mA VHIGH2
CN2-3 ——N.C.
CN2-4 Output[Low voltage] (2V) VLOW
•Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
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002-01 / 20051130 / ea422_cxap1212.fm
• All specifications are subject to change without notice.
CXA-P1212A-WJL
ELECTRICAL CHARACTERISTICS
•This product permits a selection between the voltage control brightness adjustment and the resistance control brightness adjustment according to a
connection method.
∗1When voltage control brightness adjustment is selected.
∗2When resistance control brightness adjustment is selected.
∗3This inverter has a built-in feature which stops an operation in approx. 3 seconds when the RL1 and the RL2 are open at the start-up of the inverter or
when they are opened during the inverter operation.
TYPICAL CONNECTION
∗1SW1 Remote function a: on, b: off
∗2SW2 Dimmer control method c: voltage dimmer control, d: resistance
dimmer control
Vbr vs. Iout CHARACTERISTICS VR vs. Iout CHARACTERISTICS
Items Unit Symbol Specifications Conditions Brightness
min. typ. max. Vin(V) Vrmt(V) Vbr(V)∗1VR(kΩ)∗2Ta(°C) RL1/RL2
Output current Irms mA
Iout1/lout2 5.3 6 6.7 12±1.2 5±0.25 0 0 –10 to +70 95 to 116 Maximum
Iout1/lout2 5.5 6 6.5 12±0.6 5±0.25 0 0 23±5 106 Maximum
Iout1/lout2 1.1 2 2.9 12±1.2 5±0.25 0.6 10 –10 to +70 95 to 116 Minimum
Iout1/lout2 1.2 2 2.8 12±0.6 5±0.25 0.6 10 23±5 106±0.5 Minimum
Input current Idc
AIin1 —0.8 1 12±0.6 5±0.25 0 0 23±5 106
mA Iin2 ——1 12±0.6 0 to 0.4 0 0 23±5 95 to 116
mA Iin3∗3——1 12±1.2 5±0.25 0 to 0.6 0 to 10 –10 to +70 ∞3sec typ.
Oscillation frequency kHz FL35 40 45 12±0.6 5±0.25 0 0 –10 to +70 95 to 116
Open circuit output voltage
Erms V Vopen 1500 1700 —10.8 5±0.25 0 0 –10 to +70 ∞
CN2-1
CN2-2
CN2-4
CN1-6
CN1-7
CN1-5
CN1-3, 4
CN1-1, 2
Vin
10.8 to
13.2V
Vrmt
5 to
13.2V
RL1
(CCFL)
RL2
(CCFL)
∗1
SW1
a
b
Vbr
0 to 0.6V
VR
0 to 10kΩ
SW2∗2
c
d
Iout1/Iout2 Irms(mA)
6
4
2
00 0.6
Vbr(V)
Iout1/Iout2Irms(mA)
6
4
2
00246810
VR(kΩ)
