Document Number: DOD-PP-1031 (3rd edition)
Published date: May 2010 CP(N) 1© NEC LCD Technologies, Ltd.
2010 All rights reserved.
This DATA SHEET is updated document from
DOD-PP-1004(2).
All information is subject to change without notice.
Please confirm the sales representative before
starting to design your system.
LED Driver Board
104PW01F
DATA SHEET
DOD-PP-1031 (3rd edition)
104PW01F
DATA SHEET DOD-PP-1031 (3rd edition) 2
INTRODUCTION
The Copyright to this document belongs to NEC LCD Technologies, Ltd. (hereinafter called "NEC").
No part of this document will be used, reproduced or copied without prior written consent of NEC.
NEC does and will not assume any liability for infringement of patents, copyrights or other intellectual
property rights of any third party arising out of or in connection with application of the products
described herein except for that directly attributable to mechanisms and workmanship thereof. No license,
express or implied, is granted under any patent, copyright or other intellectual property right of NEC.
Some electronic parts/components would fail or malfunction at a certain rate. In spite of every effort to
enhance reliability of products by NEC, the possibility of failures and malfunction might not be avoided
entirely. To prevent the risks of damage to death, human bodily injury or other property arising out
thereof or in connection therewith, each customer is required to take sufficient measures in its safety
designs and plans including, but not limited to, redundant system, fire-containment and anti-failure.
The products are classified into three quality grades: "Standard", "Special", and "Specific" of the
highest grade of a quality assurance program at the choice of a customer. Each quality grade is designed
for applications described below. Any customer who intends to use a product for application other than
that of Standard quality grade is required to contact an NEC sales representative in advance.
The Standard quality grade applies to the products developed, designed and manufactured in
accordance with the NEC standard quality assurance program, which are designed for such application as
any failure or malfunction of the products (sets) or parts/components incorporated therein a customer
uses are, directly or indirectly, free of any damage to death, human bodily injury or other property, like
general electronic devices.
Examples: Computers, office automation equipment, communications equipment, test and measurement
equipment, audio and visual equipment, home electronic appliances, machine tools, personal
electronic equipment, industrial robots, etc.
The Special quality grade applies to the products developed, designed and manufactured in accordance
with an NEC quality assurance program stricter than the standard one, which are designed for such
application as any failure or malfunction of the products (sets) or parts/components incorporated therein
a customer uses might directly cause any damage to death, human bodily injury or other property, or
such application under more severe condition than that defined in the Standard quality grade without
such direct damage.
Examples: Control systems for transportation equipment (automobiles, trains, ships, etc.), traffic control
systems, anti-disaster systems, anti-crime systems, medical equipment not specifically
designed for life support, safety equipment, etc.
The Specific quality grade applies to the products developed, designed and manufactured in accordance
with the standards or quality assurance program designated by a customer who requires an extremely
higher level of reliability and quality for such products.
Examples: Military systems, aircraft control equipment, aerospace equipment, nuclear reactor control
systems, medical equipment/devices/systems for life support, etc.
The quality grade of this product is the "Standard" unless otherwise specified in this document.
104PW01F
DATA SHEET DOD-PP-1031 (3rd edition) 3
CONTENTS
INTRODUCTION ......................................................................................................................................2
1. OUTLINE................................................................................................................................................4
2. SPECIFICATIONS.................................................................................................................................4
2.1 GENERAL SPECIFICATIONS.........................................................................................................4
2.2 ABSOLUTE MAXIMUM RATINGS................................................................................................4
2.3 ELECTRICAL CHARACTERISTICS..............................................................................................5
2.4 FUSE..................................................................................................................................................5
2.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS......................................................6
2.6 LUMINANCE CONTROL................................................................................................................8
3. RELIABILITY TEST...........................................................................................................................10
4. PRECAUTIONS ................................................................................................................................... 11
4.1 MEANING OF CAUTION SIGNS................................................................................................. 11
4.2 CAUTIONS..................................................................................................................................... 11
4.3 ATTENTIONS................................................................................................................................. 11
4.3.1 Handling of the product......................................................................................................... 11
4.3.2 Environment........................................................................................................................... 11
4.3.3 Others.....................................................................................................................................12
5. OUTLINE DRAWINGS.......................................................................................................................13
104PW01F
1. OUTLINE
This 104PW01F LED Driver Board is for an LCD module. Adaptable LCD modules are as follows. In
addition, this 104PW01F is compliant with the European RoHS directive (2002/95/EC).
Adaptable LCD modules
NL6448BC33-70C
NL6448BC33-70F
2. SPECIFICATIONS
2.1 GENERAL SPECIFICATIONS
Item Specification Unit
Size See "5. OUTLINE DRAWINGS". mm
Weight 7.0 (typ.) g
Delivery unit 10 (min.) set
2.2 ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Rating Unit Remarks
Power supply voltage VDDB -0.3 to +15.0
BRTC signal VBC -1.0 to VDDB+1.0
BRTI signal VBI -0.3 to +5.5
PWM signal PWM -0.3 to +5.5
Input voltage
PWMSEL PWMSEL -0.1 to +4.0
V Ta = 25°C
Storage temperature Tst -30 to +80 -
Operating temperature Top -30 to +80 °C -
≤ 95 Ta ≤ 40°C
≤ 85 40 < Ta ≤ 50°C
≤ 55 50 < Ta ≤ 60°C
≤ 36 60 < Ta ≤ 70°C
Relative humidity
Note1 RH
≤ 24
%
70 < Ta ≤ 80°C
Absolute humidity
Note1 AH ≤ 70
Note2 g/m3-
Note1: No condensation
Note2: Water amount at Ta= 80°C and RH= 24%
DATA SHEET DOD-PP-1031 (3rd edition) 4
104PW01F
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
Power supply current IDDB - - 1,000
Note2 mΑ At the maximum
luminance control. Note3
High VBCH 2.0 - 5.3 V
BRTC / PWM
signal Low VBCL 0 - 0.8 V
Input voltage
BRTI signal VBI 0 - 5.0 V
-
Output voltage Forward voltage
(per circuit) VL
This value is in
accordance with the
value for the adaptable
LCD module.
V Ta= +25°C
at IL= 50mA/One circuit
Output current Forward current
(per circuit) IL - 50 - mA
At maximum
luminance control. Note 3
External PWM frequency
(BRTH=Open, PWMSEL=GNDB) fPWM 100 - 500 Hz Note 4
External PWM pulse width tPWH 200 - - μs
Internal PWM frequency
(PWMSEL=Open) Ft - 251 - Hz
Note1: When designing of the power supply, take the measures for the prevention of surge voltage.
Note2: This value excludes peak current such as overshoot current.
Note3: The power supply lines (VDDB and GNDB) may have ripple voltage during luminance
control of LED. There is the possibility that the ripple voltage produces acoustic noise and
signal wave noise in audio circuit and so on. Put a capacitor between the power supply lines
(VDDB and GNDB) to reduce the noise if necessary.
Note 4: See 2.6 LUMINANCE CONTROL for the definition of fPWM. A reco mmended fPWM value is
as follows
module) LCD offrequency frame fv integer,(n
fv
412n
fPWM
==
×
−
=
2.4 FUSE
Fuse
Parameter Type Supplier
Rating Fusing current Remarks
2.5A
VDDB FMC16252AB
Kamaya Electric
Co.,Ltd. 32V
5.0A
5s max Note1
Note1: The power supply’s rated current must be more than the fusing current. If it is less than the
fusing current, the fuse may not blow in a short time, and then nasty smell, smoke and so on
may occur.
DATA SHEET DOD-PP-1031 (3rd edition) 5
104PW01F
DATA SHEET DOD-PP-1031 (3rd edition) 6
2.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS
CN1 socket (Driver Board side): 53261-0871 (MOLEX Inc.)
Adaptable plug: 51021-0800 (MOLEX Inc.)
Pin No. Symbol Function Remarks
1 VDDB Power supply
2 VDDB Power supply
3 GNDB Ground
4 GNDB Ground
Note1
5 BRTC Backlight ON/OFF signal High or Open: Backlight ON
Low: Backlight OFF
6 BRTI/PWM Luminance control terminal Note2
7 BRTH
Luminance control terminal Note2
8 PWMSEL Luminance control selector
terminal
GNDB: External PWM control Note3
Open:Resistor control or Voltage control
Note2
Note1: All GNDB and VDDB terminals must be connected to appropriate terminals.
Note2: See "2.6 LUMINANCE CONTROL".
Note3: To enable external PWM control, PWMSEL (pin 8) must be connected to GNDB o f the circuit
board.
CN2 socket (Driver Board side): SM12B-SRSS-TB (J.S.T. Mfg. Co., Ltd.)
Adaptable plug (Backlight side): SHR-12V-S, SHR-12V-S-B (J.S.T. Mfg. Co., Ltd.)
Pin No. Sy mbol Signal Remarks
1 A1 Anode 1 -
2 K1 Cathode 1 -
3 A2 Anode 2 -
4 K2 Cathode 2 -
5 A3 Anode 3 -
6 K3 Cathode 3 -
7 A4 Anode 4 -
8 K4 Cathode 4 -
9 A5 Anode 5 -
10 K5 Cathode 5 -
11 N.C. - -
12 N.C. - -
104PW01F
Reference (Connection to the CN2 plug of the LCD module side)
NL6448BC33-70C, NL6448BC33-70F
CN2 socket (Driver Board side)
Pin No. Symbol
1 A1
DATA SHEET DOD-PP-1031 (3rd edition) 7
2 K1
3 A2
4 K2
5 A3
6 K3
7 A4
8 K4
9 A5
10 K5
11 N.C.
12 N.C.
CN2 plug (LCD module side)
A1
K1
A2
K2
A3
K3
A4
K4
104PW01F
2.6 LUMINANCE CONTROL
Method Adjustment and luminance ratio
• Adjustment
Backlight luminance can be controlled by duty ratio of the external PWM signal.
To enable external PWM control, keep CN1 7pin Open or GNDB, and CN1 8pin
connect to GNDB of the circuit board.
The PWM signal must follow specification noted in the section 2.3 ELECTRICAL
CHARACTERISTICS.
Pin No Symbol Remark
DATA SHEET DOD-PP-1031 (3rd edition) 8
External
PWM
5 BRTC
High or Open: Backlight ON (Note1)
Low: Backlight OFF
6 BRTI/PWM See below
7 BRTH Open or GNDB
8 PWMSEL GNDB
Note1: Voltage level of pin No.5 will be pulled up to high level internally
when left Open.
Schematic diagram of external PWM settings
Note2: tPWH: Set to equal to greater than 200μs.
BRTC
(set to High or Open)
PWM
A
PWMSEL
tPW
tPWH Note2 tPWL
VBCL
VBCH
PWM
Low
High
Low
High
High
Low
104PW01F
Method Adjustment and luminance ratio
Definitions of parameters are as follows.
tPW
tPWH
DL ,
tPW
1
fPWM ==
Interference noise may appear when the external PWM frequency and the
vertical frame frequency of LCD module are close enough. To avoid
interference noise, it is recommended choose the external PWM frequency
fPWM as follows.
module) LCD offrequency frame fv integer,(n
fv
412n
fPWM
==
×
−
=
• Relative Luminance
Duty ratio (DL)
Note3 Luminance ratio
0.1 Less than or equal to 10% (Min. Luminance)
1.0 100% (Max. Luminance)
Note3 See "Schematic diagram of external PWM settings".
External
PWM
Resistor
control
• Adjustment
The variable resistor (R) for luminance control should be 10kΩ ±5%, 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.
Pin No Symbol Remark
5 BRTC
High or Open: Backlight ON
Low: Backlight OFF
6 BRTI/PWM See below
7 BRTH See below
8 PWMSEL Open
Schematic diagram of resistor control settings
• Relative Luminance
Resistance Luminance ratio
0Ω 10% (Typ., Luminance ratio)
10kΩ 100% (Max. Luminance)
R
BRTH BRTI
DATA SHEET DOD-PP-1031 (3rd edition) 9
104PW01F
DATA SHEET DOD-PP-1031 (3rd edition) 10
Method Adjustment and luminance ratio
Voltage
control
• Adjustment
Voltage control method works, when BRTH terminal is 0V and VBI voltage is applied
between BRTI and BRTH terminal. This control method can carry out continuation
adjustment of luminance.
Luminance is the maximum when BRTI terminal is Open.
Pin No Symbol Remark
5 BRTC
High or Open: Backlight ON
Low: Backlight OFF
6 BRTI/PWM Input voltage
7 BRTH 0V
8 PWMSEL Open
• Relative Luminance
BRTI signal (VBI) Luminance ratio
0V 10% (Typ., Luminance ratio)
2.5 to 5.0V 100% (Max. Luminance)
3. RELIABILITY TEST
This test is in accordance with the Reliability Test of the adaptable LCD module. Refer to Reliability
Test of the adapt able LCD module.
104PW01F
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 A TTENTIONS"!
!
This sign has the meaning that a customer will be injured or the product will sustain
damage if the customer practices wrong operations.
This sign has the meaning that a customer will be injured if the customer practices wrong
operations.
4.2 CAUTIONS
DATA SHEET DOD-PP-1031 (3rd edition) 11
∗ Be sure to wait for a while after turning the power OFF before replacing. LED
driver is still hot soon after shutting down.
∗ Do not apply mechanical shock. It may damage products.
!
4.3 ATTENTIONS
4.3.1 Handling of the product
① Do not touch or apply stress to exposed electronic parts. Doing so may cause damage or
malfunctionin g of produc ts. O nly hold the edge of the circuit board when unpacking.
② When handling the product, take measures of electrostatic discharge with such as earth band, ionic
shower and so on, because the product may be damaged by electrostatic.
③ Do not plug or unplug the interface connectors while the product is operating.
④ Do not hook or pull cables such as lamp cable, and so on, in order to avoid any damage.
4.3.2 Environment
① Do not operate or store in high temperature, high humidity, dewdrop atmosphere or corrosive
gases. Keep the product in packing box with antistatic pouch in room temperature to avoid dusts
and sunlight, when storing t he prod uc t.
② In order to prevent dew condensation occurred by temperature difference, the product packing box
must be opened after enough time being left under the environment of an unpacking room.
Evaluate the storage time sufficiently because dew condensation is affected by the environmental
temperature and humidity. (Recommended leaving time: 6 hours or more with the original
packing state after a customer receives the package)
③ Do not operate in high magnetic field. If not, circuit boards may be broken.
④ This product is not designed as radiation hardened.
104PW01F
4.3.3 Others
① All GNDB and VDDB terminals should be used without any non-connected lines.
② Do not disassemble a product.
③ Pack the product with the original shipping package, in order to avoid any damages during
transportation, when returning the product to NEC.
④ Insert spacers between the LED Driver board and the chassis to secure spatial distance.
Metal spacer *1
Mounting screw and washer *1
10.5mm min.
Mounting method example 1.
Chassis
Mounting surface
LED Driver Board
*Components are mounted on the upper side
in this drawing.
DATA SHEET DOD-PP-1031 (3rd edition) 12
*1: The conductive material (mounting screw, washer, metal spacer and so on) is allowed to
mount within the limits of 2.5mm radius from the center of mounting hole.
⑤ The information of China RoHS directive six hazardous substances or elements in this product is
as follows.
Mounting screw and washer *1
Chassis
1m m mi n .
Mounting method example 2.
Metal spacer *1
LED Driver Board
Mounting surface
*Components are mounted on the upper side
in this drawing.
China RoHS directive six hazardous substances or elements
Hexavalent Polybrominated Polybrominated
Lead
(Pb) Mercury
(Hg) Cadmium Chromium Biphenys Biphenyl Ethers
(Cd) (Cr VI) (PBB) (PBDE)
✕
Note1: : This indicates that the poisonous or harmful material in all the homogeneous materials
for this part is equal or below the limitation level of SJ/T11363-2006 standard
regulation.
✕: This indicates that the poisonous or harmful material in all the homogeneous
materials for this part is above the limitation level of SJ/T11363-2006 standard
regulation.
104PW01F
5. OUTLINE DRAWINGS
(Unit: mm)
Note1: The values in parentheses are for reference.
DATA SHEET DOD-PP-1031 (3rd edition) 13
