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2 Dimming Options
(valid when the "C" jumper is removed)

Endicott Research Group, Inc.
2601 Wayne St., Endicott NY 13760 607-754-9187 Fax 607-754-9255 http://www.ergpower.com

8m051972 8m Class
DC to AC Inverter

+Vin

0% - 100%

Specifications and Applications Information
4/14/97 Preliminary

approx. 6.6 ms*

* should be selected to be compatible with LCD and display driver

+ Vin -

(1)

1

3

Pulse-Width Modulated Controlled

2

The ERG 8m051972 (8m Class) low profile dc to ac inverter is specifically designed to power the Sharp LQ10D367 LCD display module to a moderate brightness level from a +5 volt dc source. This low profile inverter features:
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8m Package Package Configuration
1. 2. 3. 4. Vin(+) Vin(-) Control NC

Vmin* to +Vin

+
* Vmin should be high enough to maintain minimum tube current

(1)

1

3

Voltage Controlled

Vin 2

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

1234

.55 [14,0]

2.35 [59,7]

3.58 [90,9]

Note 1 Input by-pass capacitor (25 uf - 100uf) may be required to reduce reflected ripple.

.116 [2,95] Dia (2X)
JST Output Connector
page 4.

8m051972

.55 [14,0]

.12 [3,05] .79 [20,1]

8m051972
Typical Performance Curves

8m051972
Symbol
Vin To Tstg

Absolute Maximum Ratings
Rating
Input Voltage Range Operating Temperature Storage Temperature

Value
-0.3 to +6 0 to +70 -40 to +85

Units
Vdc °C
Relative Frequency 16.0% 12.0% 8.0% 4.0% 0.0% -4.0% 2 3 4 5 6 7 Relative Brightness Relative Frequency vs. Input Voltage 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

°C

Recommended Operating Conditions
Rating
Input Voltage

Symbol
Vin

Value
+3 to 5.5

Units
Vdc

Electrical Characteristics
Unless otherwise noted Vin = 5.00 Volts dc and Ta = 25°C

Input Voltage (Vdc)

Input Power (Watts)

Characteristic
Input Current Operating Frequency Minimum Output Voltage Inverter Efficiency Tube Operating Current Tube Sustaining Voltage ** (When powering a Sharp LQ10D367 display.)

Symbol
Iin Fo Vout (min)

Min
36 1400 -

Typ
0.83 41 80 6.0 500

Max
0.92 46 -

Units
Adc KHz
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

Vrms %

5.00 4.00 3.00 2.00 1.00 Input Voltage (Vdc)


Io Vs

-

marms Vrms

3

4

5

6

7

After tube has been allowed to warm-up for 5 minutes

Input Voltage (Vdc)

** Measured, not guaranteed. Specifications subject to change without notice

Endicott Research Group, Inc.

Made in USA
page 2.

Endicott Research Group, Inc.
page 3.