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LM3914N-1 LM3914 Dot Bar-Graph Display Driver with Built-in Regulated and programmable LED Current Drive eliminating ext resistors DIP18 DIP-18 (Pack
ILS 764
Price Details
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What Stands Out
Product Details
- Drives LEDs, LCDs or Vacuum Fluorescents
- Bar or Dot Display Mode Externally Selectable by User
- Expandable to Displays of 100 Steps
- Internal Voltage Reference from 1.2V to 12V
- Operates with Single Supply of Less than 3V
| Item Weight | 0.4 lbs (180 grams) |
Product Technical Details
| Manufacturer | National Semiconuctor |
| Item model number | LM3914N-1/NOPB |
| Is Discontinued By Manufacturer | No |
Who Should Buy?
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Electronics Hobbyists
Ideal for hobbyists creating LED displays without complex circuitry, simplifying the design process significantly.
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Educational Labs
Great for educational environments, providing hands-on experience with LED display technology and circuit design.
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DIY Projects
Perfect for DIY enthusiasts looking to build custom visual indicators with minimal components and setup.
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High-Power Applications
Not suitable for projects requiring high-power outputs, as it is designed for low to moderate current needs.
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Industrial Automation
May not meet industrial specifications for robustness and longevity needed in harsh environments.
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Complex Displays
Not ideal for projects needing complex display requirements or multi-color outputs beyond simple bar graphs.
Product Description
About This Item
Introducing the Juried Engineering LM3914N-1 LM3914 Dot Bar-Graph Display Driver - a cutting-edge solution to enhance your LED display projects. Whether you're a professional engineer or an electronics enthusiast, this pack of 50 display drivers is perfect for your needs. The LM3914N-1 LM3914 Dot Bar-Graph Display Driver features a unique built-in regulated and programmable LED current drive, eliminating the need for external resistors.
This not only simplifies the design process but also saves you valuable time and effort. With its DIP18 package, this display driver is easy to install and compatible with a wide range of electronic devices. Its compact size allows for seamless integration into your existing projects.
The LM3914N-1 LM3914 Dot Bar-Graph Display Driver is designed to provide accurate and precise control over LED current and brightness levels. This ensures that your LED displays always deliver stunning visuals that captivate your audience. Crafted with top-quality materials and engineered to withstand the rigors of daily use, this display driver guarantees long-lasting performance and durability.
Whether you're working on LED bar graphs, VU meters, or other display applications, the Juried Engineering LM3914N-1 LM3914 Dot Bar-Graph Display Driver will exceed your expectations. Upgrade your LED projects today with this pack of 50 display drivers and experience unmatched performance and efficiency. Elevate your displays to a whole new level with Juried Engineering.
Customer Questions & Answers
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Question:
What is the LM3914N-1 LM3914 Dot Bar-Graph Display Driver used for?
Answer: The LM3914N-1 LM3914 Dot Bar-Graph Display Driver is primarily used to create visual indicators, such as bar graphs or LED displays, useful for applications like audio level meters, battery charge indicators, and more. The driver enables a precise and adjustable current to the LEDs, eliminating the need for external resistors, which simplifies circuit design. This makes it ideal for electronics enthusiasts and professionals alike who are looking for an efficient way to display analog signals in a clear, visually appealing manner. -
Question:
How does the built-in regulated LED current drive work?
Answer: The built-in regulated LED current drive in the LM3914N-1 allows users to set a specific LED current without needing additional external components, ensuring consistent brightness across the display. This feature simplifies circuit design by minimizing the number of parts needed while enhancing performance reliability. For example, if you're developing a project where you need a stable LED indicator for fluctuating power levels, this driver effectively provides that requisite functionality. -
Question:
Can the LM3914N-1 be used for both bar graph and dot display modes?
Answer: Yes, the LM3914N-1 can be switched between bar graph and dot display modes depending on your project needs. This versatility is achieved by connecting the mode pin differently – when connected to a high voltage, it operates in bar mode; when left floating, it operates in dot mode. For instance, if you are designing a visual sound level indicator, bar mode would be great for demonstrating volume levels, while dot mode can show peak levels. -
Question:
What makes the LM3914N-1 suitable for beginners in electronics?
Answer: The LM3914N-1 is particularly suitable for beginners due to its simplicity and user-friendly design. The absence of external resistors greatly lowers the complexity of initial circuit setups, enabling users with limited experience to create functional and aesthetic displays in a short time. A practical example would be using it in an educational project to teach students about voltage measurement through LED indicators. -
Question:
What type of voltage supply does the LM3914N-1 require?
Answer: The LM3914N-1 operates typically within a voltage range of 3V to 30V, offering flexibility in powering various applications. This range allows it to be used in low-voltage battery-operated projects as well as higher-power circuits. For example, in a battery monitoring system, you can easily utilize this Display Driver to visually indicate battery levels using common battery voltages. -
Question:
Is it possible to daisy chain multiple LM3914N-1 units?
Answer: Yes, multiple LM3914N-1 units can be daisy-chained to create larger bar graph displays. This feature allows for scaling, making it easier to represent more data without losing clarity in the visuals. For use in extensive applications like multi-channel audio level meters, the daisy chaining of several units enables a comprehensive display of multiple audio signals. -
Question:
What is the recommended operating temperature for the LM3914N-1?
Answer: The LM3914N-1 is designed to function optimally in temperatures ranging from -40°C to +85°C. This wide operating range ensures that it can be used reliably in various environmental conditions, from indoor setups to outdoor applications. For instance, it can be integrated into devices that monitor temperatures in extreme settings, providing important visual feedback in harsh conditions. -
Question:
How do I program the LED current on the LM3914N-1?
Answer: Programming the LED current on the LM3914N-1 is achieved by using a resistor connected to the ISET pin. You can calculate the desired LED current based on the resistor value, allowing for customization according to your application’s brightness requirements. This is useful for projects where specific LED brightness is needed to communicate different statuses, such as indicating warnings or alerts. -
Question:
How can I avoid using external resistors with the LM3914N-1?
Answer: The LM3914N-1 features a built-in LED current driver that enables you to avoid external resistors completely when configuring your LED displays. This capability simplifies your circuit layout and minimizes part count, enhancing reliability and ease of use. This is particularly advantageous in compact designs, such as portable devices where space is critical. -
Question:
Where can I buy the LM3914N-1 LM3914 Dot Bar-Graph Display Driver in Palestine?
Answer: You can buy the LM3914N-1 LM3914 Dot Bar-Graph Display Driver from Ubuy, which offers a reliable platform for electronic components in Palestine. They provide a user-friendly shopping experience, ensuring you can easily find and purchase the specific components you need for your projects, along with detailed product descriptions and specifications.
Juried Engineering Communication Integrated Circuits LM3914N-1/NOPB Editorial Review
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Pros
- Compact DIP-18 package
- Built-in regulated current drive
- No external resistors needed
- Programmable LED brightness
- Wide input voltage range
Cons
- Limited to LED displays
Product Price History
Important information
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ILS 764
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