LM3914 – Dot/Bar Display Driver IC

30.00 EGP

The LM3914 is a popular and versatile integrated circuit designed to drive LED bar graph and dot displays. It converts an analog voltage input into a linear LED display, lighting up LEDs in proportion to the voltage level, making it ideal for visual voltage level indication and audio level meters.

Description

🔧 Key Features:

  • Type: LED dot/bar display driver

  • Number of Outputs: 10 LEDs (dot or bar mode)

  • Input Voltage Range: 1.2V to 12V typical

  • Operating Voltage: 3V to 25V

  • Current Drive: Adjustable LED current up to 30mA per LED

  • Display Modes: Dot mode (single LED lit) or bar mode (cumulative LEDs lit)

  • Low Power Consumption: Efficient for battery-powered devices

  • Package: 18-pin DIP and SOIC (surface mount)

  • Operating Temperature Range: -40°C to +85°C


⚙️ Typical Applications:

  • Audio level meters and VU meters

  • Battery level indicators

  • Power supply voltage monitors

  • Sensor output display

  • Visual analog indicators for various parameters


📦 Package Includes:

  • 1 x LM3914 Dot/Bar Display Driver IC – DIP-18 Package


Why Choose the LM3914?

The LM3914 simplifies analog voltage visualization by directly driving LEDs without the need for complex external circuitry. Its flexible display modes and adjustable current drive make it a favorite among designers and hobbyists for clear and intuitive level indication.

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