121PW02F - NEC - Datasheet.Live

Document Number: DOD-PP-0901 (1st edition)

Published date: December 2009 CP(N) 1

All information is subject to change without notice.

Please confirm the sales representative before

starting to design your system.

LED Driver Board

121PW02F

PRELIMINARY DATA SHEET

DOD-PP-0901(1st edition)

121PW02F

PRELIMINARY DATA SHEET DOD-PP-0901 (1st 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 da m age.

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.

121PW02F

PRELIMINARY DATA SHEET DOD-PP-0901 (1st 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.......................................................................................................................... 7

3. RELIABILITY TEST......................................................................................................................................9

4. PRECAUTIONS ............................................................................................................................................10

4.1 MEANING OF CAUTION SIGNS........................................................................................................... 10

4.2 CAUTIONS...............................................................................................................................................10

4.3 ATTENTIONS........................................................................................................................................... 10

4.3.1 Handling of the product.......................................................................................................................10

4.3.2 Environment.........................................................................................................................................10

4.3.3 Other....................................................................................................................................................10

5. OUTLINE DRAWINGS................................................................................................................................12

REVISION HISTORY ......................................................................................................................................13

121PW02F

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 4

1. OUTLINE

This 121PW01F LED Driver board is for LCD module. Adaptable LCD modules are as follows.

Adaptable LCD modules

NL8060BC31-47

NL8060BC31-47D

2. SPECIFICATIONS

2.1 GENERAL SPECIFICATIONS

Item Specification Unit

Size See "5. OUTLINE DRAWINGS". mm

Weight 6.0 (typ.) g

Delivery unit 10 (min.) set

2.2 ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Rating Unit Remarks

Power supply voltage VDDB -0.3~15.0 V

BRTC signal VBC -1.0~VDDB+1.0 V

BRTI signal VBI -0.3~5.3 V

Input voltage

PWM select PWMSEL -0.3~5.3 V

Ta = 25°C

Storage temperature Tst -30~80 °C -

Operating temperature Top -30~80 °C -

≤ 95 % Ta ≤ 40°C

≤ 85 % 40°C <Ta≤ 50°C

≤ 55 % 50°C <Ta ≤ 60°C

Relative humidity

Note1 RH

≤ 36 % 60°C <Ta ≤ 70°C

Absolute humidity

Note1 AH ≤ 70

Note2 g/m3Ta> 70°C

Note1: No condensation

Note2: Water amount at Ta=50°C and RH=85%

121PW02F

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 (380) (800)

Note2 mΑ (At the maximum

luminance control.) Note3

High VBCH 2.0 - - V

BRTC

signal Low VBCL - - 0.8 V

Input voltage

BRTI signal VBI 0 - 2.5 V

Output voltage Forward voltage

(per circuit) VL 21.2 (24.0) 27.2 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

(BRT H=Open, PWMSEL=GND B) fPWM 100 - 500 Hz Note 4

External PWM pulse width PW 200 - - μs

Internal PWM frequency

(PWMSEL=Open) Ft - 251 - Hz

Note1: When designing of the power supply, take the measures for t he 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

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 capacity should 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.

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 5

121PW02F

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 6

2.5 CONNECTIONS AND FUNCTIONS FOR INTERFACE PINS

CN1 socket (Driver 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 set to the ground level of the

circuit board.

CN2 socket (Driver side): SM12B-SRSS-TB (J.S.T. Mfg Co., Ltd.)

Adaptable plug: SHR-12V-S, SHR-12V-S-B (J.S.T. Mfg. Co., Ltd.)

Pin No. Symbol Function

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 N.C. -

8 N.C. -

9 N.C. -

10 N.C. -

11 N.C. -

12 N.C. -

121PW02F

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 High or Open, and CN1 8pin at a ground

level of the circuit board (GNDB).

The PWM signal must follow specification noted in the section 2.3 ELECTRICAL

CHARACTERISTICS.

Pin No Symbol Remark

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 7

External

PWM

5 BRTC

High or Open: Backlight ON(Note1)

Low: Backlight OFF

6 BRTI/PWM See below

7 BRTH See below

8 PWMSEL GNDB (Note2)

Note1: Voltage level of pin No5 will be pulled up to high

level internally when left Open.

Note2: To enable external PWM control, PWMSEL (pin

No8) must be set at the ground level of the circuit

board.

Schematic diagram of external PWM settings

High

Low

BRTC

(set to High or Open)

PWM

Low

High

Low

High

PWSEL

(set to GND)

tPW

tPWH tPWL

PWMVL

PWMVH

PWM

Definitions of parameters are as follows.

121PW02F

tPW

tPWH

DL ,

tPW

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

412n

fPWM

−

• Relative Luminance

Backlight

status Luminance ratio

Off 0% (Backlight turned off)

Less than or equal to 10% (Min. Luminance) Note1

On 100% (Max. Luminance)

Note1: This value varies depending on the pulse widt h.

• Adjustment

The v ariabl e resist or (R) for luminance control shoul d 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

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 8

Resistor

control

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 Note1

Resistance Luminance ratio

10% (Min. luminance)

0Ω

10kΩ 100% (Max. Luminance)

BRTH BRTI

121PW02F

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 9

Vo ltage

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 Voltage

7 BRTH 0V

8 PWMSEL Open

• Relative Luminance Note1

BRTI signal (VBI) Luminance ratio

0V 10% (Min. luminance)

2.5V 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 adaptable LCD modu le.

121PW02F

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" carefully.

This sign has the meaning that customer will be injured by himself or the product

will sustain damage, if a customer does wrong operations.

This sign has the meaning that customer will be injured by himself, if a customer

does wrong operations.

4.2 CAUTIONS

∗ Be sure to wait for a while after turning the power OFF before replacing. LED

driver is still hot soon after shutting down.

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 10

∗ 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 eart h 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.

4.3.2 Environment

① Do not operate or store in high temperature, high humidity, dewdrop atmosphere or corrosive gases.

Keep a product in a packing box with antistatic pouch under room temperature to avoid dusts and

sunlight, when storing the product.

② In o rder to prevent dew con densation occurred by temperatu re difference, the product packing box

should be opened after enough time passed under the environment of an unpacking room. Take the

sufficient time before unpacking because a situation of dew condensation is changed by the

environmental temperature and humidity. (Recommended leaving time: 6 hours or more with

packing state)

③ Do not operate in high magnetic field. Circuit boards may be broken down by it.

④ This product is not designed as radiation resistant.

4.3.3 Other

① All GNDB and VDDB terminals should be used without any non-connected lines.

② Do not disassemble a product.

③ Pack a product with original packing material, 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.

121PW02F

Mounting screw

and washer *1

Chassis

1mm min.

Mountin g meth od example 2 .

Metal spacer *1

Mounting screw

and washer *1

10.5mm min.

Mountin g meth od example 1 .

Chassis

Mounting surface

Driver

*Component s a re mounted on the

upper side in this drawing.

Metal spac er *1

Mounting surface

Driver

*Components are mounted on the upper side in this drawing.

*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.

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 11

121PW02F

5. OUTLINE DRAWINGS

Maximum height: 5.05mm

(62.5)

(10)(5)

(9)

(10)

(9)

(16)

(10)

(5)

Note2

(Unit: mm)

Note1: The va lues in parentheses are for reference.

Note2: This v alue excl ud es the th ic kness of the base boards.

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 12

121PW02F

REVISION HISTORY

The inside of latest specifications is revised to the clerical error and the major improvement of previous

edition. Only a changed part such as functions, characteristic value and so on that may affect a design of

customers, are described especially below.

Edition Document

number Prepared

date Revision contents and signature

1st

edition DOD-PP-

0901 Dec. 4,

2009 Revision contents

New issue

PRELIMINARY DATA SHEET DOD-PP-0901 (1st edition) 13

Approved by

T. OGAWA

Checked by

e of writer Signatur

Prepared by

T. OGAWA