參數(shù)資料
型號(hào)： HDSP-2301
英文描述： Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays(四字符5.0 mm (0.20英寸) 5 x 7數(shù)字文字顯示器)
中文描述： 四字符5.0毫米（0.20英寸），5 × 7字母數(shù)字顯示器（四字符5.0毫米（0.20英寸），5 × 7數(shù)字文字顯示器）
文件頁數(shù)： 7/8頁
文件大?。?/td> 146K
代理商： HDSP-2301
7
Mechanical and Thermal
Considerations
The HDSP-2301/-2302/-2303 are
available in standard ceramic
dual-in-line packages. They are
designed for plugging into
sockets or soldering into PC
boards. The packages may be
horizontally or vertically stacked
for character arrays of any
desired size. The HDSP-2301/-
2302/-2303 utilize a high output
current IC to provide excellent
readability in bright ambient
lighting. Full power operation
(V
CC
= 5.25 V, V
B
= 2.4 V, V
COL
= 3.5 V) with worst case thermal
resistance from IC junction to
ambient of 60C/watt/device is
possible up to ambient
temperature of 37C. For
operation above 37C, the
maximum device dissipation
should be derated linearly at 16.7
mW/C (see Figure 2). With an
improved thermal design,
operation at higher ambient
temperatures without derating is
possible.
Power derating for this family of
displays can be achieved in
several ways. The power supply
voltage can be lowered to a
minimum of 4.75 V. Column
Input Voltage, V
COL
, can be
decreased to the recommended
minimum value of 2.75 V for the
HDSP-2301/-2302/-2303. Also,
the average drive current can be
decreased through pulse width
modulation of V
B
.
is loaded into the 7 on-board shift
register locations 1 through 7.
Column 1 data for digits 3, 2, and
1 is similarly shifted into the
display shift register locations.
The column 1 input is now
enabled for an appropriate period
of time, T. A similar process is
repeated for columns 2, 3, 4, and
5. If the time necessary to decode
and load data into the shift
register is t, then with five
columns, each column of the
display is operating at a duty
factor of:
D.F. =
The time frame, t + T, allotted to
each column of the display is
generally chosen to provide the
maximum duty factor consistent
with the minimum refresh rate
necessary to achieve a flicker free
display. For most strobed display
systems, each column of the
display should be refreshed
(turned on) at a minimum rate of
100 times per second.
With columns to be addressed,
this refresh rate then gives a
value for the time t + T of:
1/[5 x (100)] = 2 msec
If the device is operated at 3.0
MHz clock rate maximum, it is
possible to maintain t << T. For
short display strings, the duty
factor will then approach 20%.
For further applications
information, refer to Agilent
Application Note 1016.
T
5 (t + T)
The HDSP-2301/-2302/-2303
displays have glass windows. A
front panel contrast enhancement
filter is desirable in most actual
display applications. Some
suggested filter materials are
provided in Figure 6. Additional
information on filtering and
contrast enhancement can be
found in Agilent Application
Note 1015.
For more information on
soldering and post-solder
cleaning, please see Application
Note 1027, Soldering LED
Components.
相關(guān)PDF資料
PDF描述
HDSP-2302 Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays(四字符5.0 mm (0.20英寸) 5 x 7數(shù)字文字顯示器)
HDSP-2303 Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays(四字符5.0 mm (0.20英寸) 5 x 7數(shù)字文字顯示器)
HDSP-2351 Extended Temperature Four Character 5.0 mm (0.20 Inch) 5 x 7 Alphanumeric Display for Sunlight Viewable Applications(應(yīng)用于日光觀察的擴(kuò)展溫度四字符5.0 mm (0.20 英寸) 5 x 7 文字?jǐn)?shù)字顯示器)
HDSP-2352 Extended Temperature Four Character 5.0 mm (0.20 Inch) 5 x 7 Alphanumeric Display for Sunlight Viewable Applications(應(yīng)用于日光觀察的擴(kuò)展溫度四字符5.0 mm (0.20 英寸) 5 x 7 文字?jǐn)?shù)字顯示器)
HDSP-2353 Extended Temperature Four Character 5.0 mm (0.20 Inch) 5 x 7 Alphanumeric Display for Sunlight Viewable Applications(應(yīng)用于日光觀察的擴(kuò)展溫度四字符5.0 mm (0.20 英寸) 5 x 7 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
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HDSP-2501 功能描述:LED 顯示器和配件 Yellow 585nm 5x7 Smart Display 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(zhǎng):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-2502 功能描述:LED 顯示器和配件 Red 626nm 5x7 Smart Display 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(zhǎng):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
HDSP2502 制造商:Avago Technologies 功能描述:LED DISPLAY ALPHANUMERIC
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