DC-AC INVERTER UNIT (PRELIMINARY INFORMATION) CXA-0271 (6W DOUBLE OUTPUT WITH DIMMING FUNCTION) DESCRIPTION : This DC to AC Inverter was developed for many other low LCD Backlight power supply as low profile applications, either for LCD Monitor or Industrial PC. APPLICABLE LCD: 10 to 15 inches double lamp type Lamp Voltage 460V Lamp Current 6mA Lamp Start Up Voltage 1500Vrms (Vin : 12V) CXA-0271 Lot.9517 MADE IN JAPAN FEATURES : PWM dimming circuit Current Feedback Circuit High Efficiency Low noise with voltage resonant circuit Regulated output current TEMPERATURE & HUMDITY : Operating Temperature Range Storage Temperature Range Humidity 0 °C ~ +60°C -30 °C ~ +85°C 95 %RH max DIMENSIONS : (0.8) 66.5 ± 0.3 66.5 ± 0.3 5-ø3.0 ± 0.2 3 1 Unit : mm Weight : 21.0 (g) typ. 1 5 CN1 CXA-0271 Lot.9517 MADE IN JAPAN 3 30 ± 0.5 1 (4) CAUTION HIGH VOLTAGE CAUTION HIGH VOLTAGE T1 3.5 ± 0.35 CN3 CN2 18 ± 0.2 3 8.5 ± 0.35 140 ± 0.5 70 ± 0.5 52.5 ± 0.3 52.5 ± 0.3 3 1 2 8MAX No. 1 2 3 Part Discription PCB Connector CN1 Connector CN2 Qty. 1 1 2 Material UL94V-0 (CEM-3) S5B-PH-SM3 SM02(8.0)B-BHS-1 Note t=1mm JST JST Power Systems – The Power Solution Web: Emai: www.Power-Systems.de [email protected] All specification are subject to change without notice. Page ( 1 / 4 ) Address: Dörnet 8 ; 74360 Ilsfeld-Auenstein / Germany Tel. : + 49 / 70 62 / 67 59 - 6 Fax: + 49 / 70 62 / 67 59 - 80 VER, 01 October 2003 DC-AC INVERTER UNIT (PRELIMINARY INFORMATION) CXA-0271 (6W DOUBLE OUTPUT WITH DIMMING FUNCTION) Input Side CN1: Output Side CN2: Pin No. Symbols Ratings Vin 10.8~13.2V CN 1-1 GND 0V CN 1-2 Vbr 0~2.5V CN 1-3 Vst 0/5V CN 1-4 0~13.2V: Vrmt 0~0.4V OFF / CN 1-5 2~13.2V ON Output Side CN3: Pin No. Symbols Ratings VHIGH1 460 Vrms CN 2-1 N.C. CN 2-2 VLOW1 (5V) CN 2-3 Pin No. Symbols Ratings VHIGH2 460 Vrms CN 3-1 N.C. CN 3-2 VLOW2 (5V) CN 3-3 ELECTRICAL CHARACTERISTICS : Conditions Items Output Current Input Current Symbols Iout1/2 Vin (V) Vrmt (V) Vbr (V) Ta (°C) RL1 / RL2 (KΩ ) Min. Typ. Max. 12±0.1 12±1.2 Iin1 12±1.2 Iin2 F1 12±1.2 Frequency F2 (Duty) Open Circuit Vopen 12±1.2 Voltage Dimming Iout1/2 12±0.1 Function Warning Signal Vst Specification 12±0.1 5±0.25 0 23±5 0~60 74±0.5 5±0.25 0~0.4 0~1.5 23±5 74±0.5 5±0.25 0 1.0±0.05 23±5 74±0.5 5±0.25 0 23±5 ∞ 5±0.25 2.5±0.05 23±5 74±0.5 23±5 RL1=74, RL2=∞ RL1=∞ , RL2=74 RL1=∞ , RL2=∞ RL1=74, RL2=74 5±0.25 0~2.5 5.7 5 38 254 6 6 550 43 305 1250 1500 Unit 6.7 7 700 1 48 356 mA DC - Vrms mArms 1.2 2 2.8 4.5 5 5.5 - - 0.5 mArms kHz Hz VDC DIMMING CHARACTERISTICS (Reference): 7 Iout (mArms) 6 5 4 3 2 1 0 0 1,25 2,5 Vbr (VDC) Power Systems – The Power Solution Web: Emai: www.Power-Systems.de [email protected] All specification are subject to change without notice. Page ( 2 / 4 ) Address: Dörnet 8 ; 74360 Ilsfeld-Auenstein / Germany Tel. : + 49 / 70 62 / 67 59 - 6 Fax: + 49 / 70 62 / 67 59 - 80 VER, 01 October 2003 DC-AC INVERTER UNIT (PRELIMINARY INFORMATION) CXA-0271 (6W DOUBLE OUTPUT WITH DIMMING FUNCTION) APPLICATION (for example) Voltage Dimming Type F F1 Iin Vin 10.8~ 13.2V Vin A - CN1-1 (Vin) V - 0~ Vrmt 2.5V V - 1000:1 F2 CN2-1 (VHIGH1) C7 Vst V - V Vbr CN1-2 (GND) Q6 CN3-1 (VHIGH2) RL2 C8 CN1-3 (Vbr) 0/5V A a Iout 1 Vopen CN3-3 (VLOW2) CN1-5 (Vrmt) S W V A Iout 2 Q7 CN1-4 (Vst) b RL1 CN2-3 (VLOW1) TEST CIRCUIT: 1000:1 PROBE F F1 Iin Vin 10.8~13.2V Vin A CN1-1 CN2-1 C10 V CN1-2 0/5V 0~ 2.5V F2 CN3-1 Q6 V V CN1-3 CN1-4 V Vst RL1 RL2 Vrmt Vbr CN1-5 Q7 CN3-3 Io2 A ~ Io1 A ~ V ~ Vopen CN2-3 Power Systems – The Power Solution Web: Emai: www.Power-Systems.de [email protected] All specification are subject to change without notice. Page ( 3 / 4 ) Address: Dörnet 8 ; 74360 Ilsfeld-Auenstein / Germany Tel. : + 49 / 70 62 / 67 59 - 6 Fax: + 49 / 70 62 / 67 59 - 80 VER, 01 October 2003 DC-AC INVERTER UNIT CXA-0271 (6W DOUBLE OUTPUT WITH DIMMING FUNCTION) (PRELIMINARY INFORMATION) Note 1. For circuit connection, please prefer to test circuit diagram. Note 2. 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. Note 3. 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. Note 4. 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. Note 5. Please check your lamp characteristic for minimum operational current and set the limit point in your design to avoid flickering and/or abnormal operation. Note 6. For proper operation of circuit protection (FUSE or IC PROTECTOR), please use minimum of 2A capacity for input power supply. Note 7. The warning signal: 5V in abnormal circumstances. Note 8. The brightness of the lamp changes at the change and this level, too, when the direction cjanges the input voltage lower than 12V of the standard. Note 10. In test circuit, if one of the switches CN2 or CN3 opens, then the warning signal will be activated (+5V). Power Systems – The Power Solution Web: Emai: www.Power-Systems.de [email protected] All specification are subject to change without notice. Page ( 4 / 4 ) Address: Dörnet 8 ; 74360 Ilsfeld-Auenstein / Germany Tel. : + 49 / 70 62 / 67 59 - 6 Fax: + 49 / 70 62 / 67 59 - 80 VER, 01 October 2003