8m052489 Endicott Research Group, Inc. 3 Dimming Options 2601 Wayne St., Endicott NY 13760 607-754-9187 Fax 607-754-9255 http://www.ergpower.com (valid when the "C" jumper is removed) 5% - 100% +Vin 0 approx. 5 ms* * should be selected to be compatible with LCD and display driver + (1) 3 Vin Pulse-Width Modulated Controlled 100 Kohms* + Preliminary (1) 1 3 Resistive Controlled 2 - ü ü ü ü ü ü ü ü ü + (1) 1 3 2 Note 1 Input by-pass capacitor (25 uf - 100uf) may be required to reduce reflected ripple. Input Connector Output Connector 4 pins are 0.315" [8,00] Long, 0.025" [0,63] Square and are on 0.100" [2,54] Centers. JST SM02B-BHSS-1-TB Con1-1 Con1-2 Con1-3 Con1-4 Endicott Research Group, Inc. 2601 Wayne St., Endicott NY 13760 607-754-9187 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 Vin(+) GND Control * NC * Valid when the "C" Jumper is removed page 4. 1234 Input c .55[14,0] .120[3,05] Dia.(2x) 2.35[59,7] 3.58[90,9] Pin Descriptions Voltage Controlled Vin 8m Package Package Configuration This low profile inverter features: Vin - DC to AC Inverter The ERG 8m052489 (8m Class) low profile dc to ac inverter is specifically designed to power the Samsung LTN104S2-L01 LCD display module to a moderate brightness level from a +5 volt dc source. Vmin* to +Vin * Vmin should be high enough to maintain minimum tube current 12/14/00 8m Class 2 - +Vin * value should be low enough to maintain minimum tube current at minimum brightness 1 Specifications and Applications Information 8m052489 Con2-1 ACout Con2-2 ACout .50[12,7] 1 Output .043[1,09] .55[14,0] .12[3,05] .79[20,1] 8m052489 8m052489 Typical Performance Curves Absolute Maximum Ratings Value Units Input Voltage Range Vi n -0.3 to +6 V dc Operating Temperature To -0 to +70 o Tstg -40 to +85 o Storage Temperature Relative Frequency vs. Input Voltage 16.0% C C Recommended Operating Conditions Rating Input Voltage 130% 12.0% 8.0% 4.0% 0.0% Symbol Value Units Vi n +3 to 5.5 V dc 2 70% 55% 40% 3 4 5 6 25% 1.00 7 Units Input Current Iin - .83 .92 A dc Operating Frequency Fo 36 41 46 KHz Vout (min) 1400 - - Vrms η - 80 - % Output Current Iout - 6 - marms Output Voltage (When powering a Sharp LQ10D367 display.) Vout - 5 00 - Vrms After tube has been allowed to warm-up for 5 minutes External Disable Circuit shown on page 3. 19 - 5.00 4.00 3.00 2.00 5.00 6.00 0.80 0.70 0.60 0.50 0.40 1.00 2 3 4 5 6 2 7 3 4 5 6 7 Input Voltage (Vdc) Input Voltage (Vdc) +Vin 5V 3.3 K 2N3906 madc Specifications subject to change without notice. 4.00 0.90 Disable Circuit - 3.00 Input Current vs. Input Voltage Input Current (Adc) Max Input Power (Watts) Typ - 2.00 Input Power (Watts) 6.00 Min Pin3 Input Current Requirement 85% Input Power vs. Input Voltage Symbol Efficiency 100% Input Voltage (Vdc) Unless otherwise noted Vin = 5.00 Volts dc and Ta = 25 oC Minimum Output Voltage 115% -4.0% Electrical Characteristics Characteristic Relative Brightness vs. Input Power Relative Brightness Symbol Relative Frequency Rating 1.5 K Control 1K 2N3904 Control (pin 3) 1N4148 Valid with the "C" jumper removed Endicott Research Group, Inc. Made in USA page 2. Endicott Research Group, Inc. page 3.