LS380 C/5-95 LS380/LS390/LS395 LS390 - Datasheet Archive

 

Model LS380 LCD Backlight Driver 12 Volt Input Single Tube CCFT Inverter Brightness Control Physical Specifications Dimensions:

 

Xentek Model LS380 LS380 LCD Backlight Driver 12 Volt Input Single Tube CCFT Inverter Brightness Control Physical Specifications Dimensions: 20mm x 85mm x 7.3mm (0.787" x 3.35" x 0.287") Weight: 10g (0.352 oz.) Operating Temp: 0 to 55°C, convection cooling Relative Humidity: 20% to 90%, non-condensing Storage: -20 to 85°C/5-95 C/5-95% RH Impact Resistance: 50G half wave per 2 msec Vibration Resistance: 10-55-10 Hz/min @ 1.5mm Input Specifications* Item Condition Standard - Continuous Operation Starting Condition (Discharge Starting Voltage) 12 Vdc 10 Vdc - 16 Vdc 10 Vdc - 16 Vdc Max. Input Current VIN = 10 Vdc Luminance @ Max. 0.4 A Input Current Control terminal H = (VIN) VIN = 16 Vdc 3.0 µA (Lamp Off) Max. Rush Current VIN = 16 Vdc Luminance @ Max. 3.0 Azero-p/0.3 mS Max. Input Power VIN = 10 Vdc Luminance @ Max. 4.0 W Control Terminal Input Current Control Terminal L = 0.0 - 0.4 Vdc VIN = 16 Vdc ILOW = -0.4 mA (Lamp Lighting) Control Terminal H = Open - (Lamp Off) Input Voltage Rated Tolerance *Above specifications occur @ 25 ± 5ºC. Output Specifications* Item Condition Standard MIN TYP MAX Output Voltage (Vrms) VIN = 12 Vdc - 1500 - Tube Current (mArms) Luminance @ Max. Luminance @ Min. 5.5 - 6.5 3.0 7.5 - Max. Power Output (W) VIN = 5.0 Vdc/Luminance @ Max. - - 2.7 Ignition Frequency (kHz) Luminance @ Max. 30 40 50 DC/DC Converter Frequency (kHz) Luminance @ Max. - 80 - *Above specifications occur @ 25 ± 5ºC & VIN = 10 - 16 Vdc. Model LS380 LS380 Insulating Withstand Voltage Item Rating Description Insulating Withstand Voltage Primary - Secondary 1.5 kVA Impulse Insulating Resistance Primary - Secondary Winding - Core 500 Vdc More than 100 M Luminance Variance Item Condition Standard Luminance @ Max. Btwn. pin 4 & pin 5 0.0 Luminance @ Min. Btwn. pin 4 & pin 5 10 k 8.5±0.5 14.0 60±0.3 5 LS380 LS380 1 14±0.3 5 3 1 3 20±0.5 11.0 © Copyright 1999 Taiyo Yuden (USA), Inc. Specifications subject to change without notice. TAIYO YUDEN (USA), INC. 1770 La Costa Meadows Drive San Marcos, CA 92069 (760) 471-4001 / Fax: (760) 471-4021 (800) 493-6835 www.xentek.com sales@xentek.com 7.3 MAX Lot Symbol 6.5 MAX 0.8TYP 2­ø3.0 Model LS380 LS380 Tech Notes Connection Diagram LS380/LS390/LS395 LS380/LS390/LS395 SW INVERTER CN1 Molex 53261-0590 1 On/Off 2 V(in) 3 GND 4 GND 5 Bright DC CN2* JST SM02(8.0)B-BHS CFL High 5 4 NC 3 NC 2 NC CFL Low 1 CFL 10k * On CN2, pin 1 is High and pin 5 is Low for LS390 LS390. On/Off Control The on/off control is achieved by using the on/off pin on the input side of LS380 LS380. The circuit for the remote on/off circuitry consists of an active low TTL switch. When the circuit is open, the IC Vcc is cut off. When the circuit is closed, IC Vcc is activated. A mechanical switch or a TTL/CMOS gate needs to be placed between the remote on/off pin and ground creating a condition where the circuit is closed to activate the inverter. Either one of the following will be required for the inverter to operate: One recommended use of logic switch for remote on/off is shown in the diagram below. Electrical specification for on/off terminal is Low 0 to 0.4V, -0.4 mA or higher when switch is closed. V(in) V(in) On/Off Pin On/Off Pin 0V Inverter Off 5V Inverter On SW (External) To IC Vcc To IC Vcc 1. Tie on/off pin to ground. 2. Add mechanical switch between on/off pin and ground, close switch. 3. Add TTL/CMOS switch between on/off and ground. Circuit must be closed for unit to operate (as shown above right). Model LS380 LS380 Tech Notes Output Current Optimization Method Maximum output current can be adjusted by using a solid resistor per the following method: R1 1 Minimum Typ. Output Current Maximum Output Current N/A 270 820 1.6 K 2.7 K 3.8 K 5.6 3.0 mA 3.0 mA 3.0 mA 3.0 mA 3.0 mA 3.0 mA 3.0 mA 7.5 mA 6.5 mA 6.0 mA 5.5 mA 5.0 mA 4.5 mA 4.0 mA On/Off R1 2 V(in) 3 Gnd 4 Gnd 5 Brightness 10 Kohm (External) Notes: Allowable maximum input current for backlight CCFT is stipulated on the LCD specification. Please select resistor value per requirements on the panel. For more information, please contact Taiyo Yuden (USA), Inc. Mean Time Between Failures (MTBF) By using the MIL-HDBK 217E Condition Ground Benign method, the MTBF for the LS380 LS380 is calculated at 1,121,453 hours. © Copyright 1999 Taiyo Yuden (USA), Inc. Specifications subject to change without notice. TAIYO YUDEN (USA), INC. 1770 La Costa Meadows Drive San Marcos, CA 92069 (760) 471-4001 / Fax: (760) 471-4021 (800) 493-6835 www.xentek.com sales@xentek.com