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8m052224
0% - 100% +Vin
(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
8m052224
DC to AC Inverter
approx. 6.6 ms*
* should be selected to be compatible with LCD and display driver
+ Vin -
(1)
1 2
3
Specifications and Applications Information
Pulse-Width Modulated Controlled
4/22/99 Preliminary
8m Class
+Vin
The ERG 8m052224 (8m Class) low profile dc to ac inverter is specifically designed to power a single tube of the Sharp LQ084V1DG21 LCD single tube display module to a moderate brightness level from a +5 volt dc source. This low profile inverter features:
1. Vin(+) 2. Vin(-) 3. Control 4. NC
8m Package Package Configuration
50 Kohms*
* value should be low enough to maintain minimum tube current at minimum brightness
+ Vin -
(1)
1 2
3
Resistive Controlled
Vmin* to +Vin
ü ü ü ü ü ü ü ü ü ü
Less Than 8 mm in Height LCD Module Specific Display Compatible Output Connector Firm Specifications Application Information Made in U.S.A. Factory Support Custom Input and Output Voltages Flexible System Interface Notebook Display Head Compatible
1 2 3 4
.55 [14,0]
c
2.35 [59,7]
* Vmin should be high enough to maintain minimum tube current
+ Vin -
(1)
1 2
3
3.58 [90,9]
Voltage Controlled
Note 1 Input by-pass capacitor (25 uf - 100uf) may be required to reduce reflected ripple.
.116 [2,95] DIA.(2X) JST OUTPUT SM02(8.0)B-BHS-1-TB
Endicott Research Group, Inc.
2601 Wayne St., Endicott NY 13760 607-754-9187
page 4.
.55 [14,0]
.12 [3,05] .79 [20,1]
8m052224
Absolute Maximum Ratings
Rating Input Voltage Range Operating Temperature Storage Temperature Symbol Vin To Tstg Value -0.3 to +6.0 0 to +70 -40 to +85 Units Vdc
o o
8m052224
Typical Performance Curves
12% 10%
Relative Frequency vs.Input Voltage
140% 120%
Relative Brightness vs.Input Voltage
C C
Relative Frequency
8% 6% 4% 2% 0%
Relative Brightness
100% 80% 60% 40% 20%
Recommended Operating Conditions
Rating Input Voltage Symbol Vin Value +2.5 to 5.5 Units Vdc
Electrical Characteristics
Unless otherwise noted Vin = 5.00 Volts dc and Ta = 25 oC
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
Input Voltage (Vdc)
9.0 8.0
Input Voltage (Vdc)
1.40
Input Power vs.Input Voltage
Input Current vs.Input Voltage
Characteristic Input Current Operating Frequency Minimum Output Voltage Efficiency Output Current Output Voltage (when Powering a Sharp LQ084V1DG21 display)
Symbol Iin Fo Vout (min) Iout Vout
Min 37.5 1500 -
Typ 1.10 42.5 74 6.0 680
Max 1.25 47.5 -
Units
Input Power (Watts)
KHz Vrms % marms Vrms
6.0 5.0 4.0 3.0 2.0 1.0 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00
Input Current (Adc)
Adc
7.0
1.20
1.00
0.80
0.60
0.40 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00
Input Voltage (Vdc)
Input Voltage (Vdc)
After tube has been allowed to warm-up for 5 minutes
Specifications subject to change without notice
Endicott Research Group, Inc.
Made in USA
page 2.
Endicott Research Group, Inc.
page 3.