Connectors
07/22/09 Preliminary
Specifications and
Applications Information
8m Package
PCB components are shown for reference only.
Actual product may differ from that shown.
page 1 of 3.
Package Configuration
The ERG 8m121812 (8m Class8m Class
8m Class8m Class
8m Class) low profile dc to
ac inverter is specifically designed to power the
Seiko G649DX5R10S LCD display module to a
moderate brightness level from a +12 volt dc
source.
This low profile inverter features:
9Less Than 8 mm in Height
9LCD Module Specific
9Display Compatible Output Connector
9Firm Specifications
9Application Information
9Designed, Manufactured and Supported
in the USA
9Custom Input and Output Voltages
9Flexible System Interface
9Notebook Display Head Compatible
PCB components are shown for reference only. Actual product may differ from that shown.
J1-1 +Vin
J1-2 GND
J1-3 Enable *
J1-4 N/C
J2-1 ACreturn
J2-2 N/C
J2-2 ACout
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
JAE
IL-G-3P-S3L2-E
8m121812
* V alid only with “C” jumper
(CJP) removed
8m Class8m Class
8m Class8m Class
8m Class
Single Lamp
DC to AC Inverter
1
1 2 3 4
page 2 of 3.
Made in USA
Specifications subject to change without notice.
(Note 1) Surface temperature must not exceed 80 degrees C; thermal management actions may be required.
(Note 2) Input current in excess of maximum may indicate a load/inverter mismatch condition, which can result in
reduced reliability . Please cont act ERG technical support.
(Note 3) Provided data is not tested but guaranteed by design.
(Note 4) Required User Enable/Disable Interface Circuit is shown on page 3.
(Note 5) V alid only with “C” jumper (CJP) removed.
(Note 6) With the inverter powered and CJP is in place, a ground applied to the enable pin J1-3 will open the inverter fuse.
Application Notes:
1 ) The minimum distance from high voltage areas of the inverter to any conductive material should be .12
inches per kilovolt of starting voltage.
2) Mounting hardware to be non-conductive.
3 ) Open framed inverters should not be used in applications at altitudes over 10,000 feet.
4 ) ACreturn should be left floating, not grounded.
5 ) Contact ERG for possible exceptions.
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8m121812
PWM Dimming
(Valid only with CJP removed)
page 3 of 3.
+Vin 1
2
3
5% - 100%
(2) VPWM
* should be selected to be
compatible with LCD and
display driver
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Endicott Research Group, Inc. (ERG) reserves the right to make changes in circuit design and/or
specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets
are current before placing orders. Information furnished by ERG is believed to be accurate and
reliable. However, no responsibility is assumed by ERG for its use.
R1
R2
2N3906
2N3904
10K
+Vin
Required User
Enable/Disable
Interface Circuit
niV1R2R
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With CJP in place, a
ground applied to the
enable pin J1-3 will
open the inverter fuse.
approx. 5 ms*
Circuit or equivalent
required with CJP
removed for proper
inverter turnoff.
GND
(3)
(4)
( 1) Low ESR type input by-pass capacitor (22 uF - 100 uF) may be required to reduce reflected ripple.
(2) VPWM from 2.4V to less than or equal to +Vin.
( 3) Full brightness without PWM control requires that pin 3 be tied to +Vin. Pin 3 must be at 0V to turn off.
(4 ) Duty Cycle 5% - 100%.
8m121812