{"product_id":"lm3914-dot-bar-display-driver-ic-dip-18-pin","title":"LM3914 Dot\/Bar Display Driver IC DIP-18 Pin","description":"\u003cp\u003e\u003cstrong\u003eLM3914 Dot\/Bar Display Driver IC (DIP-18 Package)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe LM3914 is a precision dot\/bar display driver integrated circuit designed to convert analog voltage levels into a visual LED display. It is widely used for displaying signal strength, audio levels, battery charge status, and other analog measurements in a clear and easy-to-read format. The IC is housed in an 18-pin DIP package, making it suitable for breadboard and PCB-based projects.\u003c\/p\u003e\n\u003cp\u003eThe LM3914 works by converting an input analog voltage into a proportional output across 10 internal comparator stages. Based on the input level, it drives a series of LEDs either in dot mode (single LED indication) or bar mode (multiple LEDs lit like a bar graph). This makes it ideal for real-time visual representation of signal intensity.\u003c\/p\u003e\n\u003cp\u003eUnlike linear display drivers, the LM3914 is designed for linear scale operation, making it especially useful for applications like voltage level indicators and measurement displays. It includes an internal voltage reference and a programmable current source, allowing precise control of LED brightness without external current-limiting resistors.\u003c\/p\u003e\n\u003cp\u003eThe IC operates with a wide range of supply voltages and supports single-supply operation. Its outputs are current-regulated open collectors, ensuring consistent LED brightness and reliable operation. It can directly interface with TTL and CMOS logic systems, making it highly versatile for embedded and electronic display applications.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDrives LEDs, LCDs, or vacuum fluorescent displays\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSelectable dot or bar display mode\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExpandable up to 100-step display\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal voltage reference (1.2V to 12V)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperates with low supply voltage (\u0026lt; 3V capability)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInputs operate down to ground level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProgrammable output current (2 mA to 30 mA)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCurrent-regulated LED outputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo multiplexing required (no flicker or interference)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInput protection up to ±35V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTTL and CMOS compatible outputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e10-step internal comparator ladder\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAudio level (VU) meters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBattery charge indicators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSignal strength displays\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower level monitoring systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial measurement displays\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomotive instrumentation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSensor output visualization\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEmbedded system indicators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDIY electronics display projects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEducational electronics experiments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"electro robo store","offers":[{"title":"Default Title","offer_id":52755217187092,"sku":"MT0743","price":35.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/6590\/0052\/files\/2_ca2f1112-d81d-49b6-8778-17b9aca55c25.png?v=1783329717","url":"https:\/\/electro-robo.com\/products\/lm3914-dot-bar-display-driver-ic-dip-18-pin","provider":"Electro Robo Store","version":"1.0","type":"link"}