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Dot height:(mm)
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Dot size:(mm)
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Description:
Introduction
The 0.7 inch height 8×8 LED dot matrix, a staple in the field of electronic displays, offers remarkable versatility and efficiency, making it an ideal choice for a wide range of applications. Known for its compact design and exceptional clarity, this type of LED display integrates seamlessly into various electronic devices, enhancing their functionality and user interaction. This article explores the features, applications, and benefits of the 8×8 LED dot matrix, enriched with real-world case studies and testimonials from industry professionals.
Key Features of the 8×8 LED Dot Matrix
The 8×8 LED dot matrix is revered for its ability to display alphanumeric characters and graphic symbols with ease. Each LED in the 8×8 grid can be individually controlled, allowing for detailed and dynamic visual representations. Key features include:
- High Resolution: Despite its compact size, it provides sufficient resolution for clear character and image rendering.
- Flexibility in Color: Options include single-color, bi-color, and RGB, enhancing the display capabilities.
- Low Energy Consumption: LEDs are energy-efficient, making the matrix suitable for portable electronic devices.
Applications Across Industries
This dot matrix screen is extensively used in various sectors:
- Consumer Electronics: As part of interfaces in devices like microwave ovens, coffee machines, and other appliances.
- Automotive Applications: Employed in dashboard displays and control systems for better readability and immediate information access.
- Public Information Systems: Used in train stations and airports for displaying flight and train schedules clearly and efficiently.
Advantages of Implementing 8×8 LED Dot Matrix
- Versatility: Its application ranges from simple indicator lights to complex displays that show detailed graphics.
- Durability: LEDs are known for their longevity and low maintenance needs.
- Cost-Effectiveness: Provides a balance between performance and cost, making it a favorable option for mass-produced electronic devices.
Case Studies: Demonstrating Success
Illustrative case studies from industries such as consumer electronics, automotive, and public transport highlight the transformative effects of integrating the 8×8 LED dot matrix into their systems. These studies demonstrate increased product functionality and enhanced user experiences.
User Testimonials
Testimonials from electronics engineers and product managers provide insights into the practical applications and benefits of the 8×8 LED dot matrix, reinforcing its reputation as a reliable and efficient display solution.
Conclusion
The 0.7 inch height 8×8 LED dot matrix is an indispensable tool in the arsenal of modern electronics design, offering unmatched versatility and efficiency. Its broad adoption across various industries underscores its importance and effectiveness in improving the functionality and appeal of electronic devices.
Call to Action Elevate your electronic designs by integrating the versatile 8×8 LED dot matrix. Contact us today for more information and start enhancing your products with reliable and efficient display technology.
Features
- Matrix Size: With a height of 19.4mm and a display width and height of 20.20×20.20mm, it provides a small yet practical display area.
- Dot Characteristics: The matrix features circular dots, each 1.90mm in size, ensuring clear and distinct illumination suitable for its compact size.
- Grid Layout: It has 8 columns and 8 rows, offering a square display area that allows for a range of display patterns and characters.
- Energy-Efficient Operation: Designed for low current usage, making it an energy-saving component suitable for sustained use.
- High Visibility: The high contrast and light output ensure the display is readable under various lighting conditions.
- Code Compatibility: Compatible with ASCII and EBCDIC codes, providing flexibility for different programming and display needs.
- Horizontal Stackability: The matrix can be stacked horizontally, enabling the creation of larger or more complex display setups.
- Flexible Circuit Design Options: Available with both column cathode and anode configurations, offering versatility in electronic designs.
- Easy Installation: Designed for easy mounting on printed circuit boards or sockets, simplifying integration into various projects.
- Consistent Brightness: LEDs are categorized for luminous intensity, ensuring uniform brightness across the display.
- Durability: Technically rugged, enhancing its reliability for various applications and operational environments.
- Aesthetic Design: Features a standard gray surface with white dots, offering a sleek and professional look.
Applications
- Compact Electronic Displays: Ideal for small-scale applications requiring clear displays, such as wearable technology or compact electronic devices.
- Custom Indicators: Suitable for creating custom indicators in small machinery, appliances, or other electronic equipment.
- Educational Tools: Can be used in teaching basic electronics and programming, particularly in projects with visual outputs.
- Interactive Art and DIY Projects: Appropriate for small-scale interactive art installations or hobbyist electronics projects.
- Prototyping: Useful in prototyping electronic components or systems where space is limited but a clear display is essential.
- Portable Devices: Its small size and low power requirements make it suitable for portable electronic devices like handheld gadgets.
- Informational Signage: Suitable for small-scale information displays in public areas, offices, or retail environments.
Electrical-optical characteristics:
Part No.(Row Cathode) | Part No. (Row Anode) | Color | Material | Peak Wavelength (nm) | Voltage typ. (v) | Voltage Max. (v) | Luminous Min. | Luminous typ. |
|---|---|---|---|---|---|---|---|---|
BL-M07C881B |
BL-M07D881B |
Ultra Blue |
InGaN |
470 |
4.2 |
180 |
||
BL-M07C881D |
BL-M07D881D |
Super Red |
GaAlAs/GaAs,DH |
660 |
2.2 |
320 |
||
BL-M07C881E |
BL-M07D881E |
Orange |
GaAsP/GaP |
635 |
2.5 |
190 |
||
BL-M07C881G |
BL-M07D881G |
Green |
GaP/GaP |
570 |
2.5 |
195 |
||
BL-M07C881PG |
BL-M07D881PG |
Ultra Pure Green |
InGaN |
525 |
4.2 |
270 |
||
BL-M07C881UE |
BL-M07D881UE |
Ultra Orange |
AlGaInP |
630 |
2.5 |
235 |
||
BL-M07C881UG |
BL-M07D881UG |
Ultra Green |
AlGaInP |
574 |
2.5 |
250 |
||
BL-M07C881UHR |
BL-M07D881UHR |
Ultra Red |
AlGaInP |
645 |
2.5 |
400 |
||
BL-M07C881UR |
BL-M07D881UR |
Ultra Red |
GaAlAs/GaAs,DDH |
660 |
2.2 |
400 |
||
BL-M07C881UY |
BL-M07D881UY |
Ultra Yellow |
AlGaInP |
590 |
2.5 |
235 |
||
BL-M07C881W |
BL-M07D881W |
Ultra White |
InGaN |
- |
4.2 |
280 |
||
BL-M07C881Y |
BL-M07D881Y |
Yellow |
GaAsP/GaP |
585 |
2.5 |
190 |
||
BL-M07C881YO |
BL-M07D881YO |
Ultra Amber |
AlGaInP |
619 |
2.5 |
235 |
Package configuration & Internal circuit diagram
All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.
Partno description:
LED dot matrix is widely used in LED information board indoor and semi-outdoor
More Information
Reflector Surface color (1st number)/ dot Lens color (2nd number):
| Number | 0 | 1 | 2 | 3 | 4 | 5 |
| Ref Surface Color | White | Black | Gray | Red | Green | |
| Dot Epoxy Color | Water clear | White diffused | Red Diffused | Green Diffused | Yellow Diffused |
Absolute maximum ratings (Ta= 25°C)
| Parameter | S | D | UR | E | Y | G | Unit | |
| Forward Current IF | 25 | 25 | 25 | 25 | 25 | 30 | mA | |
| Power Dissipation Pd | 60 | 60 | 60 | 60 | 60 | 65 | mW | |
| Reverse Voltage VR | 5 | 5 | 5 | 5 | 5 | 5 | V | |
| Peak Forward Current IPF (Duty 1/10 @1KHZ) | 150 | 150 | 150 | 150 | 150 | 150 | mA | |
| Operation Temperature TOPR | -40 to +80 | °C | ||||||
| Storage Temperature TSTG | -40 to +85 | °C | ||||||
| Lead Soldering Temperature TSOL | Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb) | °C | ||||||
Absolute maximum ratings (Ta= 25°C)
| Parameter | UHR | UE | YO | UY | UG | PG | UB | UW | Unit |
| Forward Current IF | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | mA |
| Power Dissipation Pd | 75 | 65 | 65 | 65 | 75 | 110 | 120 | 120 | mW |
| Reverse Voltage VR | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | V |
| Peak Forward Current IPF (Duty 1/10 @1KHZ) | 150 | 150 | 150 | 150 | 150 | 150 | 100 | 100 | mA |
| Operation Temperature TOPR | -40 to +80 | °C | |||||||
| Storage Temperature TSTG | -40 to +85 | °C | |||||||
| Lead Soldering Temperature TSOL | Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb) | °C | |||||||
Related Information
Applied for:
1. Application
The Seven Segment LED is widely applied for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Checking with BETLUX’s Sales in
advance for information on applications in which exceptional reliability is required, particularly
when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in
aviation, transportation, traffic control equipment, medical and life support systems and safety
devices).
2. Storage
The storage ambient for the Seven Segment LED should not exceed 30℃ temperature or 70% relative humidity.
For extended storage out of their original packaging, it is recommended that the Seven Segment LEDs be stored
in a sealed container with appropriate desiccant, or in a desiccator with nitrogen ambient.
3. Cleaning
Avoid using any unspecified chemical solvent to clean LED . For example, Trichloroethylene, Chlorosen, Acetone, and Diflon S3MC.
Any cleaning method can only be taken under normal temperature in one minute or less if it is required.
Use water to clean the Seven Segment LED if necessary under room temperature
dry it immediately after that.
4.Forming
Any unsuitable stress applied to the epoxy may break bonding wires in LED
Any forming on lead pin must be done before soldering, not during or after soldering.
Avoid applying any stress to resin in order to prevent the epoxy fracture and break on bonding wire.
While forming, please use a tie bar cut or equivalent to hold or bend the pin.
2mm from the base of resin is the minimum distance for the place bending the lead pin.
Avoid bending the lead pin at the same point twice or more.
Soldering
When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.
Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.
Recommended soldering conditions:
| IR Reflow Soldering (for SMD display) | Wave Soldering | Soldering Iron | |||
| Pre-Heat | 150-180°C | Pre-Heat | 100°C Max. | Temperature | 300°C Max. |
| Pre-Heat Time | 120sec Max. | Pre-Heat Time | 60sec Max. | ||
| Peak Temperature | 260°C Max. | SolderWave | 260°C Max. | Soldering Time | 3sec Max.(one time only) |
| Soldering Time | 10 sec Max. | Soldering Time | 5sec Max. | ||
Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED
ESD(Electrostatic Discharge)
Static Electricity or power surge will damage the LED.
Suggestions to prevent ESD (Electrostatic Discharge):
n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs
n All devices, equipment, and machinery must be properly grounded
n Work tables, storage racks, etc. should be properly grounded
n Use ion blower to neutralize the static charge which might have built up on surface of the LED’s
plastic lens as a result of friction between LEDs during storage and handling
ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current,
low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on”
and Vf of the suspect LEDs at low currents.
The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP
product.
LED dirve IC by Maxim Integrated
MAX6959 4½-Digit LED Display Driver
MAX6958 4½-Digit LED Display Driver
MAX6955 7-, 14-, 16-Segment LED Display Driver
MAX6956 LED Static Display Driver and I/O Port
MAX6954 7-, 14-, 16-Segment LED Display Driver
MAX6952 5 x 7 Matrix LED Display Driver
MAX6957 LED Static Display Driver and I/O Port
MAX6950 5-Digit LED Display Driver
MAX6951 8-Digit LED Display Driver
ICM7212 4-Digit LED Driver
ICM7212A 4-Digit LED Driver
ICM7212AM 4-Digit LED Driver
ICM7212M 4-Digit LED Driver
ICM7218A 8-Digit LED Driver
ICM7218B 8-Digit LED Driver
ICM7218C 8-Digit LED Driver
ICM7218D 8-Digit LED Driver
MAX7221 8-Digit LED Display Driver
MAX7219 8-Digit LED Display Driver
When selecting power for LED systems, it’s essential to understand several key parameters to ensure safe operation, longevity, and optimal performance. Here are some steps and considerations for LED power selection:
- Determine the Forward Voltage (Vf) of the LED(s):
Each LED has a forward voltage, which is the voltage at which the LED operates when the current is flowing through it. This value can typically be found in the LED’s datasheet.
- Determine the Forward Current (If) of the LED(s):
The forward current is the current at which the LED is designed to operate. Running an LED at higher than its rated current can reduce its lifespan and increase the heat it produces.
- Decide on the Configuration:
Series Configuration: When LEDs are connected in series, the forward voltages add up, but the current remains the same.
Parallel Configuration: When LEDs are connected in parallel, the forward voltage remains the same, but the currents add up. This configuration can be risky because if one LED fails or has a slightly lower forward voltage, it can cause the other LEDs to draw more current.
Calculate Total Power Requirements:
Power (W) = Total Forward Voltage (V) x Total Forward Current (A)
For example, if you have three LEDs connected in series, each with a forward voltage of 3V and a forward current of 20mA, the total power requirement would be:
Power = (3V + 3V + 3V) x 20mA = 9V x 0.02A = 0.18W
- Select an Appropriate Power Supply:
- Voltage Rating: The power supply voltage should match or slightly exceed the total forward voltage of your LED configuration.
- Current Rating: The power supply’s current rating should meet or exceed the total forward current of your LED configuration.
- Safety Margin: It’s a good practice to select a power supply that can provide at least 20% more power than your calculated requirement. This ensures the power supply isn’t operating at its maximum capacity, which can extend its life and ensure safer operation.
- Consider Additional Features:
- Dimming Capability: If you want to control the brightness of your LEDs, choose a power supply with dimming capabilities.
- Overcurrent and Overvoltage Protection: To protect your LEDs, select a power supply with built-in protection mechanisms.
- Thermal Management: Ensure that the power supply has adequate cooling, especially if it will be enclosed or in a location with limited airflow.
- Regulation and Efficiency:A power supply with good regulation will maintain a consistent voltage output despite variations in the load. High efficiency ensures minimal power is wasted as heat.
- Physical Size and Form Factor:Depending on where you plan to place the power supply, its size and shape may be critical factors.
In summary, when selecting power for LED systems, understanding your LED’s requirements and the configuration you plan to use is essential. Then, pick a power supply that meets those needs with some added safety margin, keeping in mind any additional features or constraints relevant to your project.
Here are some well-regarded brands in the industry:
- Mean Well: One of the most recognized brands in the LED power supply industry, Mean Well offers a wide range of products suitable for both indoor and outdoor applications. Their units often come with features like overcurrent protection, dimming capabilities, and high efficiency.
- Tridonic: A global leader in lighting technology, Tridonic offers LED drivers and power supplies that cater to various lighting solutions, from simple setups to advanced smart lighting systems.
- Philips Advance Xitanium: Philips is a well-known brand in the lighting industry, and their Xitanium series of LED drivers are known for reliability and performance. They cater to both indoor and outdoor LED applications.
- Osram: Another giant in the lighting industry, Osram offers a range of LED drivers and power supplies suitable for various applications, including architectural and street lighting.
- LIFUD: Specializing in LED drivers, LIFUD is known for its high-quality products that cater to both commercial and residential LED lighting solutions.
- MOSO: This brand offers a variety of LED drivers, especially for outdoor and industrial applications. Their products are known for durability and performance.
- TDK-Lambda: With a history in power electronics, TDK-Lambda offers a range of power supplies and LED drivers suitable for various applications, emphasizing reliability and advanced features.
