INVERTER
84PW021
DATA SHEET
DOD-PD-0743 (2nd edition)
This DATA SHEET
fromDOD-PD-0364(1).
is
updated
document
All information is subject to change without
notice. Please confirm the sales representative
before starting to design your system.
Document Number: DOD-PD-0743 (2nd edition)
Published date: December 2004 CP(N)
1
© NEC LCD Technologies, Ltd.
2004 All rights reserved.
84PW021
INTRODUCTION
No part of this document shall be copied in any form or by any means without the prior written consent
of NEC LCD Technologies, Ltd. (hereinafter called "NEC").
NEC does not assume any liability for infringement of patents, copyrights or other intellectual property
rights of third parties by or arising from use of a product described herein or any other liability arising
from use of such application. No license, express, implied or otherwise, is granted under any patents,
copyrights or other intellectual property rights of NEC or of others.
While NEC has been making continuous effort to enhance the reliability of its products, the possibility
of failures cannot be eliminated entirely. To minimize risks of damage to property or injury to person
arising from a failure in an NEC product, customers must incorporate sufficient safety measures in their
design, such as redundancy, fire-containment and anti-failure features.
NEC products are classified into the following three quality grades:
"Standard", "Special", "Specific"
The "Specific" quality grade applies only to applications developed based on a customer designated
"quality assurance program" for a specific application. The recommended applications of a product
depend on its quality grade, as indicated below. Customers must check the quality grade of each
application before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically
designed for life support)
Specific: Military systems, aircraft, aerospace equipment, submersible repeaters, nuclear reactor control
systems, life support systems (medical equipment, etc.) and any other equipment
The quality grade of this product is "Standard" unless otherwise specified in this document. If
customers intend to use this product for applications other than those specified for "Standard" quality
grade, they should contact NEC sales representative in advance.
DATA SHEET DOD-PD-0743 (2nd edition)
2
84PW021
CONTENTS
INTRODUCTION ..........................................................................................................................................2
1. OUTLINE....................................................................................................................................................4
2. SPECIFICATION .......................................................................................................................................4
2.1 GENERAL SPECIFICATIONS..............................................................................................................4
2.2 ABSOLUTE MAXIMUM RATINGS ....................................................................................................4
2.3 ELECTRICAL CHARACTERISTICS...................................................................................................5
2.4 FUSE.......................................................................................................................................................5
2.5 POWER SUPPLY VOLTAGE SEQUENCE ..........................................................................................6
2.6 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS...........................................................7
2.7 LUMINANCE CONTROL.....................................................................................................................8
3. RELIABILITY TEST.................................................................................................................................8
4. PRECAUTIONS .........................................................................................................................................9
4.1 MEANING OF CAUTION SIGNS ........................................................................................................9
4.2 CAUTIONS ............................................................................................................................................9
4.3 ATTENTIONS ........................................................................................................................................9
4.3.1 Handling of the product .................................................................................................................9
4.3.2 Environment.................................................................................................................................10
4.3.3 Other ............................................................................................................................................10
5. OUTLINE DRAWINGS ........................................................................................................................... 11
DATA SHEET DOD-PD-0743 (2nd edition)
3
84PW021
1. OUTLINE
This 84PW021 inverter is for LCD module. Adaptable LCD module is as follows.
Adaptable LCD module
NL10276BC16-01
2. SPECIFICATION
2.1 GENERAL SPECIFICATIONS
Item
Specification
Unit
Size
See "5.OUTLINE DRAWINGS".
mm
Weight
49 (max.)
g
Delivery unit
10 (min.)
set
2.2 ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Rating
Unit
Remarks
Power supply voltage
VDDB
0 to +14.0
V
Ta = 25°C
BRTC signal
VBC
0 to +14.0
V
BRTI signal
VBI
0 to +5.3
V
Storage temperature
Tst
-30 to +85
°C
-
Operating temperature
Top
-20 to +70
°C
-
≤ 95
%
Ta ≤ 40°C
≤ 85
%
40 < Ta ≤ 50°C
≤ 70
%
50 < Ta ≤ 55°C
≤ 73
Note2
g/m3
Input voltage
Relative humidity
Note1
Absolute humidity
Note1
RH
AH
Ta = 25°C
VDDB = 12.0V
Ta > 55°C
Note1: No condensation
Note2: Water amount at Ta=55°C and RH=70%
DATA SHEET DOD-PD-0743 (2nd edition)
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84PW021
2.3 ELECTRICAL CHARACTERISTICS
(Ta = 25°C)
Parameter
Symbol
min.
typ.
max.
Unit
Remarks
Power supply voltage
VDDB
10.8
12.0
13.2
V
Note1, Note2
Power supply current
IDDB
790
880
970
mΑ
VDDB = 12.0V
(At luminance control is
maximum.) Note2
High
VBCH
2.0
-
VDDB
V
Low
VBCL
0
-
0.8
V
VBI
0
-
2.5
V
High
IBCH
-
-
1.5
mA
Low
IBCL
-1.5
-
-
mA
BRTI signal
IBI
-1.0
-
-
mA
Open lamp voltage
VO
950
-
-
Vrms
Note3
Lamp voltage
(at steady state)
VBLH
-
440
-
Vrms
-
High
VAMH
-
5.3
-
V
at malfunction
Low
VAML
-
0
-
V
at normal
IBL
4.5
5.0
5.5
mArms
-
IAMH
-
-
1.0
mA
-
Oscillation frequency
FO
49
54
59
kHz
-
Luminance control frequency
FB
245
270
295
Hz
-
BRTC signal
Input voltage
BRTI signal
-
BRTC signal
Input current
-
Output voltage
AM signal
Output current
Lamp current
(per lamp)
AM signal
High
Note1: When designing of the power supply, take the measures for the prevention of surge voltage.
Note2: The power supply lines (VDDB and GNDB) occurs large ripple voltage while luminance control
of LCD lamps. There is the possibility that the ripple voltage produces acoustic noise and signal
wave noise in audio circuit and so on. Put a capacitor (5,000 to 6,000µF) between the power
source lines (VDDB and GNDB) to reduce the noise, if the noise occurred in the circuit.
Note3: Measured value with high voltage probe of a load capacitance of 3pF
It is guaranteed that the adaptable LCD module can be turned on at Ta= 0 °C.
2.4 FUSE
Parameter
Fuse
Type
Supplier
11CT2A
S.O.C. Corporation
Rating
Fusing current
Remarks
4.0A
Note1
2.0 A
VDDB
72 V
Note1: The power supply capacity should be more than the fusing current. If the power capacity is
less than the fusing current, the fuse may not blow for a short time, and then nasty smell,
smoking and so on may occur.
DATA SHEET DOD-PD-0743 (2nd edition)
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84PW021
2.5 POWER SUPPLY VOLTAGE SEQUENCE
10.8V
10.8V
VDDB
0V
800ms max.
0s min.
0s min.
BRTC
0V
DATA SHEET DOD-PD-0743 (2nd edition)
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84PW021
2.6 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS
CN1 socket (Inverter side):
Adaptable plug:
Pin No.
Symbol
Function
1
VDDB
Power supply
2
VDDB
Power supply
3
GNDB
Ground
4
GNDB
Ground
5
BRTC
6
BRTI
7
BRTH
8
☆
53261-1171 (MOLEX Inc.)
51021-1100 (MOLEX Inc.)
Backlight ON/OFF signal
Remarks
Note1
High or Open:
Backlight ON
Low:
Backlight OFF
This pin is pulled-up to VDDB in the product.
Pull-up resistance: 3.3 kΩ
Luminance control terminal
Note2
AM
Alert signal output at malfunction
Note3
9
RSVD
-
10
RSVD
-
11
RSVD
-
Keep this pin Open.
Note1: All GNDB and VDDB terminals should be used without any non-connected lines.
Note2: See "2.7 LUMINANCE CONTROL".
Note3: If anyone of terminals Pin No. 1, 2 or 4 (CN2 and CN3) opens, then the alert signal (+5.0V) is
output.
☆
CN2 socket (Inverter side):
Adaptable plug (Backlight side):
☆
SM03 (7-D1) B-BHS-1-TB(LF)(SN) (J.S.T. Mfg Co., Ltd.)
BHR-04VS-1 (J.S.T. Mfg Co., Ltd.)
Pin No.
Symbol
Signal
Remarks
1
VBLH
High voltage (Hot)
-
2
VBLH
High voltage (Hot)
-
3
N. C.
-
Keep this pin Open.
4
VBLC
Low voltage (Cold)
-
Note1: VBLH and VBLC must be connected correctly. If customer connects wrongly, customer will
be hurt and the module will be broken.
☆
CN3 socket (Inverter side):
Adaptable plug (Backlight side):
☆
SM03 (7-D1) B-BHS-1-TB(LF)(SN) (J.S.T. Mfg Co., Ltd.)
BHR-04VS-1 (J.S.T. Mfg Co., Ltd.)
Pin No.
Symbol
Signal
Remarks
1
VBLH
High voltage (Hot)
-
2
VBLH
High voltage (Hot)
-
3
N. C.
-
Keep this pin Open.
4
VBLC
Low voltage (Cold)
☆
Note1: VBLH and VBLC must be connected correctly. If customer connects wrongly, customer will
be hurt and the module will be broken.
DATA SHEET DOD-PD-0743 (2nd edition)
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84PW021
2.7 LUMINANCE CONTROL
Method
Adjustment and luminance ratio
• Adjustment
The variable resistor (R) for luminance control should be 10kΩ ±5%, B curve, 1/10W.
Minimum point of the resistor is the minimum luminance. Also maximum point of the
resistor is the maximum luminance.
The resistor (R) must be connected between BRTH-BRTI terminals.
Resistor control
BRTH
R
BRTI
• Luminance ratio Note1
Resistance
Luminance ratio
0Ω
20 % (Minimum)
10 kΩ
100 % (Maximum)
• Adjustment
Voltage control method works, when BRTH terminal is 0V and VBI voltage is input
between BRTI-BRTH terminals. This control method can carry out continuation
adjustment of luminance.
Luminance is maximum when BRTI terminal is Open.
Voltage control
• Luminance ratio Note1
BRTI signal (VBI)
Luminance ratio
0V
20 % (Minimum)
2.5 V
100 % (Maximum)
Note1: These data are the target values.
3. RELIABILITY TEST
This test is in accordance with the adaptable LCD module. Refer to Reliability Test of the adaptable
LCD module.
DATA SHEET DOD-PD-0743 (2nd edition)
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84PW021
4. PRECAUTIONS
4.1 MEANING OF CAUTION SIGNS
The following caution signs have very important meaning. Be sure to read "4.2 CAUTIONS" and
"4.3 ATTENTIONS", after understanding these contents!
!
This sign has the meaning that customer will be injured by himself or the product will
sustain a damage, if customer has wrong operations.
This sign has the meaning that customer will get an electrical shock, if customer has
wrong operations.
This sign has the meaning that customer will be injured by himself, if customer has wrong
operations.
4.2 CAUTIONS
∗ Do not touch the inverter while the inverter is working, because there is a danger
that customer will get an electric shock.
∗ Do not remove the inverter protection sheet, because there is a danger that
customer will get an electrical shock.
∗ Be sure to wait some time after turning power OFF before starting replacement
work, because the inverter is charged at a high voltage after working.
∗ Be sure to wait some time after turning power OFF before starting replacement
work, because the inverter is hot after working.
∗ Do not shock the inverter, because there is a danger of breaking.
4.3 ATTENTIONS
!
4.3.1 Handling of the product
① Take hold of both ends without touch the mounting parts when customer pulls out products from
packing box. If customer touches it, products may be broken down or out of adjustment, because
of stress to mounting parts.
② Take the measures of electrostatic discharge such as earth band, ionic shower and so on, when
customer handles the product, because products may be damaged by electrostatic.
③ Do not push-pull the interface connectors while the product is working, because wrong power
sequence may break down the product.
④ Do not hook cables nor pull connection cables such as lamp cable and so on, for fear of damage.
⑤ Properly connect the adaptable plug (backlight side) to socket (inverter side) without incomplete
connection. After connecting, be careful not to hook the lamp cables because incomplete
connection may occur by hooking the lamp cables. This incomplete connection may cause
abnormal operation of high voltage circuit.
DATA SHEET DOD-PD-0743 (2nd edition)
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84PW021
4.3.2 Environment
① Do not operate or store in high temperature, high humidity, dewdrop atmosphere or corrosive
gases. Keep the product in antistatic pouch in room temperature, because of avoidance for dusts
and sunlight, if customer stores the product.
② In order to prevent dew condensation occurring by temperature difference, the product packing
box should be opened after leave under the environment of an unpacking room temperature
enough. Because a situation of dew condensation occurring is changed by the environmental
temperature and humidity, evaluate the leaving time sufficiently. (Recommendation leaving time:
6 hour or more with packing state)
③ Do not operate in high magnetic field. Product may be broken down by it.
④ This product is not designed as radiation hardened.
4.3.3 Other
① All GNDB and VDDB terminals should be used without any non-connected lines.
② Do not disassemble a product without permission of NEC.
③ Pack the product with original shipping package, because of avoidance of some damages during
transportation, when customer returns it to NEC for repair and so on.
DATA SHEET DOD-PD-0743 (2nd edition)
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84PW021
5. OUTLINE DRAWINGS
(Unit: mm)
☆
☆
Note1: The values in parentheses are for reference.
DATA SHEET DOD-PD-0743 (2nd edition)
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