CCFL-Inverter SCF-0277 ( For 4W ✕ 1 Lamp ) ■Features ●Built in On/Off control function ●Regulated ●Built lamp current in Current Mode dimming control circuit. ●Applications: LCD size 13 to 15 inches for note PC Suitable Sanken's CCFL: Lamp length 270 to 310 mm : Exterior Diameter φ1.8, 2.0, 2.2mm CN2 8.0max 2-φ2.2 20.0± 0.5 CN1 Top View 95.0± 0.5 82.0± 0.2 (4) 12.8± 0.2 (4.5) ■Outline Side View PWB (Printed wiring board): FR-4 or CEM-3 (t=0.8) Weight: 13.6g typ Unit : mm ■Connector terminal number and Function Connector No. CN1 (Input) CN 2 (Output) Terminal No. Symbol Function 1 VIN DC input voltage 2 GND GND 3 Vrmt On-Off control 4 Vbr Dimming control 5 N.C 1 Lamp-H Output high side 2 Lamp-L Output low side Connector type name/Manufacturer 53261-0590/molex SM02 (8.0) B-BHS-TB/JST SCF-0277 ■Application CN1 1 H 12V CN2 VIN SW L 0 to 2V 3 Vrmt 2 GND 4 Vbr SW H: enable 2.5V to VIN L : disable 0 to 0.5V Lamp-H 1 Lamp-L 3 RL Cold-Cathode Fluorescent Lamp Inverter Unit ■Absolute maximum ratings Parameter Symbol Ratings Unit DC input voltage VIN 0 to 16 V On/Off voltage Vrmt 0 to 16 V Dimming voltage Vbr 0 to 2.5 V Output power PL 4.0 W Operating temp. Topr 0 to 60 °C Storage temp. Tstg – 20 to 80 °C Humidity RH 95 %RH Remarks Maximum wet-bulb temp. 38°C No dew condensation ■Electrical characteristics Conditions : at Topr=25°C, VIN=12V (unless otherwise stated) min Ratings typ max Parameter Symbol DC input voltage VIN 9.6 12 15 V Input current IIN — — 500 mA Driving frequency fsw 50 55 60 kHz — 6.0 — mArms RL=120kΩ, Vbr =0V — 3.0 — mArms RL=120kΩ, Vbr = 2V Unit Output current IL Output Power PL — 3.6 — W Open voltage VO 1500 — — Vrms ■Dimming characteristics Output Current (mArms) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0.5 1.0 1.5 Dimming voltage (Vbr) 2.0 2.5 Remarks VIN=12V RL=120kΩ RL=120kΩ VIN=9.6V, RL=100MΩ