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8m052340
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
8m052340
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
5/17/00
Preliminary
8m Class
+Vin
The ERG 8m052340 (8m Class) low profile dc to ac inverter is specifically designed to power the Kyocera KHS057QX1AJ-G60/G91 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
* value should be low enough to maintain minimum tube current at minimum brightness
+ Vin -
(1)
Resistive Controlled
ü ü ü ü ü ü ü ü ü
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
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 SM02(8.0)B-BHS-1-TB
.120 [3,05] DIA.(2X) Output .55 [14,0] 1 .12 [3,0] .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
Con1-1 Con1-2 Con1-3 Con1-4
Vin(+) GND Control * NC
Con2-1 ACcommon Con2-2 NC Con2-3 ACout
* Valid when the "C" Jumper is removed
page 4.
8m052340
Absolute Maximum Ratings
Rating Input Voltage Range Operating Temperature Storage Temperature Symbol Vi n To Tstg Value -0.3 to +5.5 -20 to +70 -40 to +85 Units
Relative Frequency
6%
Typical Performance Curves
Relative Frequency vs.Input Voltage
140% 120%
8m052340
Relative Brightness vs.Input Voltage
o o
C C
Relative Brightness
V dc
4%
100% 80% 60% 40%
2%
0%
Recommended Operating Conditions
Rating Input Voltage Symbol Vi n Value +2.5 to 5.5 Units V dc
3.5 3.0
-2% 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00
20% 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00
Input Voltage (Vdc)
Input Power vs.Input Voltage
0.55 0.50
Input Voltage (Vdc)
Input Current vs.Input Voltage
Electrical Characteristics
Unless otherwise noted Vin = 5.00 Volts dc and Ta = 25 oC
Input Current (Adc)
Characteristic Input Current Operating Frequency Minimum Output Voltage Efficiency Output Current Output Voltage (When powering a load simulating the referenced display.) Pin3 Input Current Requirement
Symbol Iin Fo Vout (min) Iout Vout -
Min 38 13 5 0 -
Typ .48 43 69 5.2 3 20 11
Max .55 48 -
Units A dc KHz Vrms % marms Vrms madc
Input Power (Watts)
0.45 0.40 0.35 0.30 0.25 0.20
2.5 2.0 1.5 1.0 0.5 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
Input Voltage (Vdc)
Input Voltage (Vdc)
+Vin 5V 3.3 K
Disable Circuit
1.5 K Control 1K 2N3904
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.
Specifications subject to change without notice.
Endicott Research Group, Inc.
Made in USA
page 2.
Endicott Research Group, Inc.
page 3.