參數(shù)資料
型號： HDSP-5401
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?jǐn)?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?jǐn)?shù)字顯示器）
文件頁數(shù)： 6/8頁
文件大?。?/td> 255K
代理商： HDSP-5401
6
Operational
Considerations
Electrical Description
These display devices are com-
posed of light emitting diodes,
with the light from each LED
optically stretched to form
individual dots.
These display devices are well
suited for strobed operation. The
typical forward voltage values can
be scaled from Figure 2. These
values should be used to calculate
the current limiting resistor value
and the typical power dissipation.
Expected maximum V
F
values, for
driver circuit design and maxi-
mum power dissipation, may be
calculated using the following
V
F
MAX models:
Red (HDSP-440X/470X):
V
F
MAX = 1.55 V + I
PEAK
(6.5
)
For I
PEAK
≥
5 mA
AlGaAs Red
(HDSP-L10X/M10X):
V
F
MAX = 1.8 V + I
PEAK
(20
)
For I
PEAK
≤
20 mA
V
F
MAX = 2.0 V + I
PEAK
(10
)
For I
PEAK
≥
20 mA
HER (HDSP-450X/L20X):
V
F
MAX = 1.75 V + I
PEAK
(35
)
For I
PEAK
≥
5 mA
Green (HDSP-540X/510X):
V
F
MAX = 1.75 V + I
PEAK
(38
)
For I
PEAK
≥
5 mA
Figure 3 allows the designer to
calculate the luminous intensity at
different peak and average
currents. The following equation
calculates intensity at different
peak and average currents:
I
V
AVG = (I
F
AVG/I
F
AVG DATA
SHEET)(
η
PEAK
)(I
V
DATA SHEET)
Where:
I
F
AVG is the desired time
averaged LED current.
I
F
AVG DATA SHEET is the time
averaged data sheet test current
for I
V
DATA SHEET.
η
PEAK
is the relative efficiency at
the peak current, scaled from
Figure 3.
Figure 1. Maximum Allowable Average
Current Per Dot as a Function of
Ambient Temperature.
Figure 2. Forward Current vs. Forward
Voltage.
Figure 3. Relative Efficiency
(Luminous Intensity per Unit Dot) vs.
Peak Current per Dot.
I
V
DATA SHEET is the time
averaged data sheet luminous
intensity, resulting from I
F
AVG
DATA SHEET.
I
V
AVG is the calculated time
averaged luminous intensity
resulting from I
F
AVG.
For example, what is the
luminous intensity of an AlGaAs
Red (HDSP-L10X) driven at 50
mA peak 1/5 duty factor
I
F
AVG = 50 mA * 0.2 = 10 mA
I
F
AVG DATA SHEET = 2 mA
η
PEAK
= 0.98
I
V
DATA SHEET = 1650
μ
cd
Therefore
I
V
AVG = (10 mA/2 mA)(0.98)
(1650
μ
cd) = 8085
μ
cd
相關(guān)PDF資料
PDF描述
HDSP-4403 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?jǐn)?shù)字顯示器)
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?jǐn)?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?jǐn)?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?jǐn)?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?jǐn)?shù)字顯示器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HDSP-5501 功能描述:LED 顯示器和配件 Red 626nm 0.56in 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-5501 制造商:Avago Technologies 功能描述:LED DISPLAY 0.56" HE RED
HDSP-5501 制造商:Avago Technologies 功能描述:LED DISPLAY 0.56" HE RED
HDSP-5501-GG000 功能描述:LED 顯示器和配件 Red 626nm 0.56in 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-5501-GH000 功能描述:LED 顯示器和配件 Red 626nm 0.56in 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
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