LM3915 LED Dot/Bar Display Driver IC DIP-18 Package

Description

1. IC Type: The LM3915 is an LED dot/bar display driver IC.
2. Dot/Bar Display: It can be configured to drive LEDs in either a dot mode (where individual LEDs light up to represent the signal level) or a bar mode (where a row of LEDs forms a bar graph to represent the signal level).
3. Visual Signal Display: The LM3915 is used to create visual displays that indicate the level or magnitude of an input signal, such as audio signal strength in a VU (Volume Unit) meter.
4. DIP-18 Package: The IC typically comes in a DIP-18 package, which is a through-hole package style and can be easily mounted on a standard PCB.
5. Input Voltage Range: It can operate over a specified input voltage range, and the LEDs are controlled based on the input voltage signal.
6. Number of LED Outputs: The LM3915 typically controls a set of 10 LEDs, but it can be cascaded with other LM3915 ICs to control more LEDs for a larger display.
7. LED Intensity Control: It provides a feature for controlling the intensity or brightness of the LEDs to adapt to different lighting conditions.
8. Dot/Bar Mode Selection: The LM3915 allows you to choose between dot or bar display mode to suit the application’s requirements.
9. Applications: The LM3915 is commonly used in audio equipment, battery level indicators, signal level indicators, and other applications where visualizing changing signal levels is necessary.
10. Temperature Stability: The IC is designed for temperature stability to ensure consistent performance across various environmental conditions.
11. Datasheet: For precise details regarding electrical characteristics, pin configuration, and usage, it’s essential to refer to the datasheet provided by the manufacturer.