K2794 T-51638D084-FW-A-AA 2N3906 2N3904 1N4148

Specifications and Applications Information 2 Tube DC to AC Inverter Preliminary The ERG K2794 (8m Class) low profile dc to ac

K2794 K2794 Specifications and Applications Information 2 Tube DC to AC Inverter Preliminary The ERG K2794 K2794 (8m Class) low profile dc to ac inverter is specifically designed to power the Optrex T-51638D084-FW-A-AA T-51638D084-FW-A-AA LCD display module to a moderate brightness level from a +12 volt dc source. "K Series" Package PCB components are shown for reference only. Actual product may differ from that shown. This low profile inverter features: Less Than 8 mm in Height LCD Module Specific Display Compatible Output Connector Firm Specifications Application Information Designed, Manufactured and Supported in the USA Custom Input and Output Voltages Flexible System Interface Notebook Display Head Compatible Package Configuration .79[20,1] 1 Output (2X) 3.300 [83,82] 4.20 [106,7] Connectors Input Input Connector Output Connectors Molex 532-61-0890 JST SM02(8.0)B-BHS-1-TB J1-1 J1-2 J1-3 J1-4 J1-5 J1-6 J1-7 J1-8 Vin(+) Vin(+) GND GND Control * N/C N/C N/C J2-1 ACout J3-1 ACout J2-2 N/C J3-2 N/C J2-3 ACout J3-3 ACout c 1 8 .120[3,05] Dia. (2x) .450[11,43] .47[11,9] 1 PCB components are shown for reference only. Actual product may differ from that shown. 05/01/04 8m Class .12[3,0] * Valid with "C" Jumper Removed page 1 of 3. K2794 K2794 Absolute Maximum Ratings Rating Symbol Value Units Input Voltage Range Vi n -0.3 to +13.2 V dc Operating Temperature To -0 to +70 o C Tstg -40 to +85 o C Storage Temperature Recommended Operating Conditions Rating Symbol Units Vi n Input Voltage Value +10.8 to 12.6 V dc Electrical Characteristics Unless otherwise noted Vin = 12.00 Volts dc and Ta = 25oC Characteristic Symbol Min Typ Max Units Input Current (note 1) Iin - .56 .65 A dc Operating Frequency Fo 41 46 51 KHz Vout (min) 1000 - - Vrms - - 83 - % Output Current (per tube) Iout - 6.2 - marms Output Voltage (When powering a load simulating the referenced display) Vout - 450 - Vrms - - 7 - madc Minimum Output Voltage Efficiency Pin5 Input Current Requirement After tube has been allowed to warm-up for 5 minutes Specifications subject to change without notice. (Note 1) Input current in excess of maximum may indicate a load/inverter mismatch condition, which can result in reduced reliability. Please contact ERG technical support. Input voltage specification modified for clarity on 5/2004. +Vin 12V Disable Circuit 3.3 K 2N3906 2N3906 2.2 K Control (pin 5) 1K Control 2N3904 2N3904 1N4148 1N4148 Valid when the "C" jumper is removed Made in USA page 2 of 3. K2794 K2794 Dimming Option (valid when the "C" jumper is removed) 5% - 100% +Vin 0 approx. 5.5 ms* * should be selected to be compatible with LCD and display driver CCFT Lamp Vin + (1) 1,2 3,4 5 CCFT Lamp Pulse-Width Modulation Controlled search Gr Re R 13 M ® c. RE UL p, In ou Endi co tt * Note 1 - Input by-pass capasitor (25uf - 100uf) may be required to reduce reflected ripple. IS G I I O S TE RE D F 3 900 A3 1 Endicott Research Group, Inc. (ERG) reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by ERG is believed to be accurate and reliable. However, no responsibility is assumed by ERG for its use. page 3 of 3.