HCMS-2976 Avago Technologies US Inc., HCMS-2976 Datasheet - Page 14
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HCMS-2976
Manufacturer Part Number
HCMS-2976
Description
LED DISPLAY 5X7 8CHAR 5MM BLUE
Manufacturer
Avago Technologies US Inc.
Series
HCMS-29xxr
Specifications of HCMS-2976
Millicandela Rating
*
Internal Connection
*
Size / Dimension
1.69" L x 0.45" W x 0.21" H (42.93mm x 11.43mm x 5.33mm)
Color
Blue
Configuration
*
Voltage - Forward (vf) Typ
*
Package / Case
26-DIP
Display Type
Alphanumeric
Number Of Digits/alpha
8
Digit/alpha Size
0.20" (5mm)
Character Format
Dot Matrix
Character Size
5.08mm
Led Color
Blue
Luminous Intensity
170µcd
No. Of Digits / Alpha
8
Display Area Width
42.93mm
Display Area Height
11.43mm
Number Of Digits
8
Illumination Color
Blue
Wavelength
460 nm
Operating Voltage
5.5 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Common Pin
-
Lead Free Status / Rohs Status
Details
Appendix E. Display Brightness
Two ways have been shown to control the brightness
of this LED display: setting the peak current and setting
the duty factor. Both values are set in Control Word 0.
To compute the resulting display brightness when both
PWM and peak current control are used, simply
multiply the two relative brightness factors. For
example, if Control Register 0 holds the word 1001101,
the peak current is 73% of full scale (BIT D
= L) and the PWM is set to 60% duty factor (BIT D
BIT D
brightness is 44% (.73 x .60 = .44) of full scale. The
temperature of the display will also affect the LED
brightness as shown in Figure 8. The temperature of
the display will also affect the LED brightness as shown
in Figure 8.
Appendix F. Reference Material
Application Note 1027: Soldering LED Components
Application Note 1015: Contrast Enhancement
Techniques for LED Displays
For product information and a complete list of distributors, please go to our web site:
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Pte. in the United States and other countries.
Data subject to change. Copyright © 2006 Avago Technologies Pte. All rights reserved.
AV01-0115EN - May 16, 2006
14
2
= H, BIT D
1
= L, BIT D
0
= H). The resulting
5
= L, BIT D
3
= H,
4
Figure 8. Relative luminous intensity versus ambient
temperature.
www.avagotech.com
1.2
1.1
0.9
0.8
0.7
0.6
0.5
0.4
1
-40
-20
Ambient Temperature (
0
20
o
40
C)
60
80