CXA-0283 参数 Datasheet PDF下载

DC-AC INVERTER UNIT

CXA-0283

(15W QUAD OUTPUT WITH DIMMING FUNCTION)

(PRELIMINARY INFORMATION)

Note 1.

Note 2.

Note 3.

Note 4.

For circuit connection, please prefer to test circuit diagram

Please use minimum of 2mm clearance (all directions) between inverter high voltage area and any

conductors. Please refer to mechanical drawing for marking of high voltage area.

Open voltage (strike voltage) is measured across the transformer secondary winding at no load as

the reading at the output connector would be less than the actual value.

If the start voltage falls below Cold Cathode Tube strike voltage, the CCFL will not light up easily

specially at lower ambient temperature. Please review mounting instruction to avoid any abnormal

operation due to coupling/leakage capacitance of inverter high voltage area to any surrounding

conductor.

Please check your lamp characteristic for minimum operational current and set the limit point in your

design to avoid flickering and/or abnormal operation.

For proper operation of circuit protection (FUSE or IC PROTECTOR), please use minimum of 4A

capacity for input power supply.

The recommendation range of Vbr is 0 to 1.3V and normal dimming range is 1.3 to 1.5V.

However each lamp has deferent characteristics, therefore care must be taken to check brightness

with using lamp and DC to AC Inverter units combination to avoid flickering or other problems.

The test circuits added 5pF capacitor across the load resistor for LCD backlight stay capacitor.

If the inverter detects open circuit all lamps for more than 3 seconds it will shut down.

In the test circui, if anyone of loads open, then the warning signal will be activated (+5V).

The warning output 5V in abnormal circumstances.

Note 5.

Note 6.

Note 7.

Note8.

Note9.

Note10.

Note11.

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VER, 04 October 2002

All specification are subject to change without notice.