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CCFL-Inverter
sFeatures
qBuilt
SCF-0272 ( For 2W 1 Lamp )
in On/Off control function
qIt's possible to dim with external PWM signal, applying
On/Off function. qApplications: LCD size 7 to 8 inches for monitor Suitable Sanken's CCFL: Lamp length 160 to 180 mm : Exterior Diameter 1.8mm
sOutline
4.50.1
86.00.5 14.50.2
10.00.5 CN1
Top View
2.4 CN2
PWB (Printed wiring board): FR-4 or CEM-3 (t =0.8) Weight: 5.3g typ
Unit : mm
sConnector terminal number and Function
Connector No. Terminal No. 1 CN1 (Input) 2 3, 4 5 CN 2 (Output) 1 2 Symbol VIN GND Vbr S-GND Lamp-H Lamp-L Function DC input voltage Power GND CHP2705-0101/SMK On-Off/dimming control Signal-GND Output high side SM02B-BHSS-TB/JST Output low side Connector type name/Manufacturer
5.5 max
Side View
SCF-0272
sApplication
CN1 5V D L H SW 3,4 2 5 TTL pulse 100 to 500Hz SW H: enable 2.5V to VIN L : disable 0 to 0.5V D: dimming Vbr GND S-GND Lamp-L 2 Cold-Cathode Fluorescent Lamp 1 VIN Lamp-H CN2 1 RL
Inverter Unit
sAbsolute maximum ratings
Parameter DC input voltage Control signal voltage Output power Operating temp. Storage temp. Humidity Symbol VIN Vbr PL Topr Tstg RH Ratings 0 to 8 0 to 5.5 2.3 0 to 60 - 20 to 80 95 Unit V V W C C %RH Maximum wet-bulb temp. 38C No dew condensation Remarks
sElectrical characteristics
Parameter Input DC voltage Input current Driving frequency Output current Dimming control frequency Output Power Open voltage Symbol VIN IIN fsw IL fPWM PL VO min 4.75 -- 50 -- -- 100 -- 1000 Ratings typ 5 -- -- 4.7 5.0 -- 2.0 1100
Conditions: at Topr=25C, VIN=5V (unless otherwise stated)
max 5.25 700 60 -- -- 500 -- --
Unit V mA kHz mArms mArms Hz W Vrms
Remarks
VIN=5V RL=90k RL=90k RL=80k External signal TTL RL=80k VIN= 4.75V, RL=100M

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