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| CCFL-Inverter sFeatures qFor SCF-0275 ( For 4W 4 Lamps ) CCFL 4 lamps in On/Off control function qBuilt qRegulated lamp current qBuilt in PWM Mode dimming control circuit. qApplications: LCD size 15 inches for monitor Suitable Sanken's CCFL: Lamp length 300 to 340 mm : Exterior Diameter 2.6mm sOutline (3.5) 120.00.5 113.00.2 (3.5) Top View CN2 CN3 CN1 43.00.2 (3.5) 4-3.0 Side View PWB (Printed wiring board): FR-4 or CEM-3 (t =1.0) Weight: 39.5g typ Unit : mm sConnector terminal number and Function Connector No. Terminal No. 1, 2 CN1 (Input) 3, 4 5 6 7 1 CN 2 (Output 1, 2) 2 4 1 CN 3 (Output 3, 4) 2 4 Symbol VIN GND Vbr N. C Vrmt Lamp1-H Lamp 2-H Lamp1, 2-L Lamp 3-H Lamp 4 -H Lamp 3, 4-L On-Off control Output 1 high side Output 2 high side Output 1, 2 low side Output 3 high side Output 4 high side Output 3, 4 low side SM03 (7-D1) B-BHS-TB/JST SM03 (7-D1)B-BHS-TB/JST Function DC input voltage GND Dimming control S7B-PH-SM3-TB/JST Connector type name/Manufacturer Connect parallel with 1st and 2nd pin, in the same way 3rd and 4th pin too. It's short of current capacity with mono-pin. 8.2max 50.00.5 SCF-0275 sStandard External Circuit CN1 12V H SW 7 L 0 to 2.5V SW H: enable 2.5V to VIN L : disable 0 to 0.5V Vrmt 3,4 GND 5 Vbr (for Dimming) Lamp(2, 4)-H Lamp-L 2 4 RL 1, 2 VIN Lamp(1, 3)-H CN2,3 1 RL Cold-Cathode Fluorescent Lamp Inverter Unit sAbsolute maximum ratings Parameter DC input voltage On-Off voltage Dimming voltage Output power Operating temp. Storage temp. Humidity Symbol VIN Vrmt Vbr PL Topr Tstg RH Ratings 0 to 14.4 0 to 14.4 0 to 3.0 4.4 0 to 60 - 20 to 80 95 Unit V V V W C C %RH Maximum wet-bulb temp. 38C No dew condensation Per 1 lamp Remarks sElectrical characteristics Parameter DC input voltage Input current Driving frequency Output current Dimming control frequency Output Power Open voltage Symbol VIN IIN fsw IL fPWM PL VO min 10.8 -- 50 -- -- 240 -- 1500 4.7 -- Ratings typ 12 -- 55 7.0 3.5 Conditions : at Topr=25C, VIN=12V (unless otherwise stated) max 13.2 1500 60 -- -- 300 -- -- Unit V mA kHz mArms mArms Hz W Vrms RL=83k VIN=12V RL=83k Remarks Per 1 lamp RL=83k, Vbr=0V Per 1 lamp RL=83k, Vbr=2.5V VIN=10.8V, RL=100M sDimming characteristics 16.0 Output Current (mArms) 12.0 IL 2 IL 1 8.0 4.0 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Dimming voltage (Vbr) (2 Lamps) |
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