8m Class8m Class
8m Class8m Class
8m Class
DC to AC Inverter
page 4.
Preliminary
8m122439
Specifications and
Applications Information
The ERG 8m122439 (8m Class)(8m Class)
(8m Class)(8m Class)
(8m Class) low profile dc to ac
inverter is specifically designed to power the Kyocera
KHS072VG1MB-G90 LCD display module to a
moderate brightness level from a +12 volt dc source.
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
Vin
+
-
1
2
3
Vin
+
-
1
2
3
Vin
+
-
1
2
3
3 Dimming Options
(valid when the "C" jumper is removed)
+Vin
5% - 100%
+Vin
approx. 5 ms*
* should be selected to be
compatible with LCD and
display driver
* value should be low
enough to maintain
minimum tube current
at minimum brightness
Vmin* to +Vin
* Vmin should be high
enough to maintain
minimum tube current
100 Kohms*
(1)
(1)
(1)
Note 1 Input by-pass capacitor (25 uf - 100uf) may be required to
reduce reflected ripple.
Voltage Controlled
Pulse-Width
Modulated Controlled
Resistive Controlled
8m122439
8/22/01
Endicott Research Group, Inc.
2601 Wayne St., Endicott NY 13760
607-754-9187 Fax 607-754-9255
http://www.ergpower.com
Endicott Research Group, Inc.
2601 Wayne St., Endicott NY 13760
607-754-9187
Con1-1 Vin(+)
Con1-2 GND
Con1-3 Control *
Con1-4 NC
Pin Descriptions
Con2-1 ACout
Con2-2 NC
Con2-3 NC
Con2-4 ACout
Input Connector
4 pins are 0.315" [8,00] Long,
0.025" [0,63] Square and are
on 0.100" [2,54] Centers.
* Valid when the "C" Jumper
is removed
Output Connector
JST
SM02(8.0)B-BHS-1-TB
0
.79 [20,1]
8m Package
Package Configuration
c
3.58 [90,9]
2.35 [59,7]
.55 [14,0]
.55 [14,0] .12 [3,0]
1 2 3 4
1
Output
Input
.120 [3,05]
DIA.(2X)
8m122439 8m122439
page 2. page 3.
Typical Performance Curves
Made in USA
Endicott Research Group, Inc. Endicott Research Group, Inc.
After tube has been allowed to warm-up for 5 minutes Specifications subject to change without notice.
External Disable Circuit shown on page 3.
Disable Circuit 3.3 K
2.2 K
2N3906
2N3904
1 K
+Vin 12V
Control (pin 3)
Control 1N4148
Valid with the "C" jumper removed
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C
erutarepmeTegarotSgtsT58+ot04-
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C
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o
C
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tnerruCtuptuOtuoI-2.4- smram
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0%
2%
4%
6%
8%
10%
Relative Frequency
6.00 8.00 10.00 12.00 14.00
Input Voltage (Vdc)
Relative Frequency vs.Input Voltage
20%
40%
60%
80%
100%
120%
140%
Relative Brightness
6.00 8.00 10.00 12.00 14.00
Input Voltage (Vdc)
Relative Brightness vs.Input Voltage
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Input Power (Watts)
6.00 8.00 10.00 12.00 14.00
Input Voltage (Vdc)
Input Power vs.Input Voltage
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0.22
Input Current (Adc)
6.00 8.00 10.00 12.00 14.00
Input Voltage (Vdc)
Input Current vs.Input Voltage
