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8m052330
5% - 100% +Vin 0 approx. 1.5 ms*
3 Dimming Options
Endicott Research Group, Inc.
2601 Wayne St., Endicott NY 13760 607-754-9187 Fax 607-754-9255 http://www.ergpower.com
8m052330 8m Class
DC to AC Inverter
* should be selected to be compatible with LCD and display driver
+ Vin -
(1)
1
3
Pulse-Width Modulated Controlled
Specifications and Applications Information
1/11/00
Preliminary
2
+Vin 100 Kohms*
The ERG 8m052330 (8m Class) low profile dc to ac inverter is specifically designed to power the Kyocera KHS038AA1AC-G60/KHS038AA1AC-G93 LCD display module to a moderate brightness level from a +5 volt dc source. This low profile inverter features:
1234
8m Package Package Configuration
* value should be low enough to maintain minimum tube current at minimum brightness
+ Vin -
(1)
1
3
Resistive Controlled
Input ü ü ü ü ü ü ü ü ü
2
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]
2.35 [59,7]
3.58 [90,9]
* Vmin should be high enough to maintain minimum tube current
+ Vin -
(1)
1
3
Voltage Controlled
Pin Descriptions
Input Connector Output Connector
JST SM02(8.0)B-BHS-1-TB .120 [3,05] DIA.(2X) Output .55 [14,0]
4 1
2 4 pins are 0.315" [8,00] Long, 0.025" [0,63] Square and are on 0.100" [2,54] Centers.
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 Con2-2 Con2-3 Con2-4
ACout NC NC ACout
.12 [3,0] .79 [20,1]
8m052330
Absolute Maximum Ratings
14%
Typical Performance Curves
Relative Frequency vs.Input Voltage
8m052330
140%
Relative Brightness vs.Input Voltage
Rating Input Voltage Range Operating Temperature Storage Temperature
Symbol Vi n To Tstg
Value -0.3 to +6.0 -20 to +70 -40 to +85
Units
12%
Relative Frequency
10% 8% 6% 4% 2%
Relative Brightness
V dc
o
120%
C C
100%
o
80%
Recommended Operating Conditions
Rating Input Voltage Symbol Vi n Value +3.0 to 5.5 Units V dc
60%
0% 3.00 3.50 4.00 4.50 5.00 5.50 6.00
40% 3.00 3.50 4.00 4.50 5.00 5.50 6.00
Input Voltage (Vdc)
Input Power vs.Input Voltage
0.45
Input Voltage (Vdc)
Input Current vs.Input Voltage
Electrical Characteristics
Unless otherwise noted Vin = 5.00 Volts dc and Ta = 25 oC
3.0
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
Min 30 1000 -
Typ .440 35 67 5.3
Max .495 40 -
Units A dc KHz Vrms % marms
Input Power (Watts)
2.0
Input Current (Adc)
2.5
0.40
0.35
1.5
0.30
1.0
0.5 3.00 3.50 4.00 4.50 5.00 5.50 6.00
0.25 3.00 3.50 4.00 4.50 5.00 5.50 6.00
Input Voltage (Vdc)
Input Voltage (Vdc)
Vout
-
276
-
Vrms
3.3 K
+Vin 5V
-
-
13
-
madc
Disable Circuit
1.5 K 1K Control 2N3904
After tube has been allowed to warm-up for 5 minutes External Disable Circuit shown on page 3.
Specifications subject to change without notice.
2N3906 Control (pin 3) 1N4148
Endicott Research Group, Inc.
Made in USA
page 2.
Endicott Research Group, Inc.
page 3.