Endicott Research Group, Inc. 2601 Wayne St., Endicott NY 13760 607-754-9187 Fax 607-754-9255 http://www.ergpower.com DMB42303 Specifications and Applications Information 01/26/00 Four Tube DC to AC Inverter Preliminary 1.03 [26,2] MAX J3 Powered by a regulated 12 VDC source the DMB42303 is specially designed to power the Samsung LT150X1-151 backlight. Product Features u Small Package Size, less than 17mm in height. u High Efficiency u Made in U.S.A. .53 [13,5] MAX .44 [11,2] 1 1.83 [46,5] 7.91 [200,9] MAX J1 1 5.365 [136,27] .120 [3,05] Dia.(2x) J2 1 .275 [6,99] PCB components are shown for reference only. Actual product may differ from that shown. Package Configuration The ERG DMB42303 (DMB Series) DC to AC inverter features onboard connectors and can be easily dimmed using an external pulse-width modulated control signal or an analog voltage. This unit is less than 17mm in height. DMB42303 Package PCB components are shown for reference only. Actual product may differ from that shown. Connectors J1 MOLEX 22-05-3061 J2 J3 JST JST SM04(4.0)B-BHS-1-TB SM04(4.0)B-BHS-1-TB Pinouts J1-1 J1-2 J1-3 J1-4 J1-5 J1-6 Vin Vin GND GND Enable Control J2-1 Lamp A Vhigh J2-4 Lamp B Vhigh J2-7 Lamp A Vlow J2-9 Lamp B Vlow J3-1 Lamp A Vhigh J3-4 Lamp B Vhigh J3-7 Lamp A Vlow J3-9 Lamp B Vlow DMB42303 Absolute Maximum Ratings (Note 1) Rating Symbol Value Units Vin -0.3 to +15 VDC VDisable -0.3 to +5.5 VDC Operating Temperature Ta 0 to +85 o C Storage Temperature Ts -40 to +85 o C Input Voltage Disable Recommended Operating Conditions Rating Input Voltage Operating Temperature (Note 2) Symbol Value Units Vin 10.8 to 13.2 VDC Ta 0 to +50 o C Electrical Characteristics Unless otherwise noted Vin = 12.00 Volts DC , Ta = 25 oC and unit has been running for 5 minutes. Characteristic Symbol Min Typ Max Units Input Current I in - 1.70 2.10 ADC Input Ripple Current I rip - 100 - mA pk-pk Operating Frequency Fo 35 40 45 KHz Efficiency - 89 - % Vstart 1800 - - V Output Voltage (with lamp) Vout - 690 - V Output Current (per tube) I out - 6.0 - mArms Turn-Off Threshold Vthoff - - 0.8 V Turn-On Threshold Vthon 2.0 - - V Inverter Output Voltage (no load) (Note 3) Enable (pin J1-5) (Note 1) Reliable and predictable operation of the device are not guaranteed with applied stresses at or beyond those listed in "Absolute Maximum Ratings". Operation at these limits may reduce device reliability and is therefore not recommended. Please refer to "Recommended Operating Conditions" for reliable operation of the device. (Note 2) Operation above 50oC is possible if airflow is provided. (Note 3) Provided data is not tested but guaranteed by design.