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參數(shù)資料
| 型號： | HDSP-4403 |
| 英文描述： | Large 5 X 7 Dot Matrix Alphanumeric Displays 17.3/26.5 mm Character Heights(大 5 X 7點陣格式17.3/26.5 mm 字符高的文字數(shù)字顯示器) |
| 中文描述： | 大5 x 7點矩陣顯示器17.3/26.5毫米字母數(shù)字字符高地（大5 × 7點陣格式17.3/26.5毫米字符高的文字數(shù)字顯示器） |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 255K |
| 代理商： | HDSP-4403 |
7
I
PEAK
= 125 mA
I
F
AVG = 10 mA
R
θ
J-A
= 50
°
C/W
N = 35
T
J
MAX = 110
°
C
V
F
MAX = 2.0 V + (0.125 A)(10)
= 3.25 V
P
D
= (3.25 V)(0.01 A)
= 0.0325 W
T
A
= 110
°
C –
(50
°
C/W)(0.0325 W)(35)
= 53
°
C
The maximum number of dots ON
for the ASCII character set is 20.
What is the maximum ambient
temperature an HDSP-L10X can
operate with the following
conditions:
I
PEAK
= 125 mA
I
F
AVG = 10 mA
R
θ
J-A
= 50
°
C/W
N = 20
T
J
MAX = 110
°
C
V
F
MAX = 3.25 V
P
D
= 0.0325 W
T
A
= 110
°
C –
(50
°
C/W)(0.0325 W)(20)
= 77
°
C
Therefore, the maximum ambient
temperature can be increased by
reducing the average number of
dots ON from 35 to 20 dots ON
per display.
Thermal Considerations
The device thermal resistance
may be used to calculate the
junction temperature of the
central LED. The equation below
calculates the junction tem-
perature of the central (hottest)
LED.
T
J
= T
A
+ (P
D
)(R
θ
J-A
)(N)
P
D
=(V
F
MAX)(I
F
AVG)
R
θ
J-A
=
R
θ
J-PIN
+ R
θ
PIN-A
T
J
is the junction temperature of
the central LED.
T
A
is the ambient temperature.
P
D
is the power dissipated by one
LED.
N is the number of LEDs ON per
character.
V
F
MAX is calculated using the
appropriate V
F
model.
R
θ
J-A
is the package thermal
resistance from the central LED
to the ambient.
R
θ
J-PIN
is the package thermal
resistance from the central LED
to pin.
R
θ
PIN-A
is the package thermal
resistance from the pin to the
ambient.
For example, what is the maxi-
mum ambient temperature an
HDSP-L10X can operate with the
following conditions:
Contrast Enhancement
For information on contrast
enhancement please see
Application Note 1015.
Soldering/Cleaning
For Soldering/Cleaning infor-
mation on soldering LEDs please
refer to Application Note 1027.
相關PDF資料 |
PDF描述 |
|---|---|
| HDSP-5403 | Large 5 X 7 Dot Matrix Alphanumeric Displays 17.3/26.5 mm Character Heights(大 5 X 7點陣格式17.3/26.5 mm 字符高的文字數(shù)字顯示器) |
| HDSP-4503 | Large 5 X 7 Dot Matrix Alphanumeric Displays 17.3/26.5 mm Character Heights(大 5 X 7點陣格式17.3/26.5 mm 字符高的文字數(shù)字顯示器) |
| HDSP-4701 | Large 5 X 7 Dot Matrix Alphanumeric Displays 17.3/26.5 mm Character Heights(大 5 X 7點陣格式17.3/26.5 mm 字符高文字數(shù)字顯示器) |
| HDSP-4703 | Large 5 X 7 Dot Matrix Alphanumeric Displays 17.3/26.5 mm Character Heights(大 5 X 7點陣格式17.3/26.5 mm 字符高的文字數(shù)字顯示器) |
| HDSP-521G | 14.2 mm (0.56 inch) Dual Digits General Purpose Seven Segment Displays(14.2 mm (0.56 英寸)雙字通用藍色七段顯示器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HDSP-4503 | 制造商:Hewlett Packard Co 功能描述: |
| HDSP-4600 | 功能描述:LED 顯示器和配件 Green 571nm 0.43in 7 Segment RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-4601 | 功能描述:LED 顯示器和配件 Green 571nm 0.43in 7 Segment RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-4603 | 功能描述:LED 顯示器和配件 Green 571nm 0.43in 7 Segment RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-4603 | 制造商:Avago Technologies 功能描述:LED DISPLAY 0.43" GREEN |
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