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