LM3914 Dot/Bar Display Driver IC DIP 18 Package

LM3914 Dot/Bar Display Driver IC DIP 18 Package 

The LM3914 is a versatile LED dot/bar display driver IC that provides a visual representation of analog signal levels using 10 LEDs. It can operate in either dot mode (single LED lit at a time) or bar mode (all LEDs up to the signal level lit), making it ideal for applications such as audio level meters, voltage monitors, and signal indicators.

The IC includes a built-in voltage reference, resistor ladder, and LED drivers, simplifying design and minimizing external components. Packaged in a DIP-18 through-hole package, the LM3914 is suitable for prototyping, educational projects, and industrial display systems.

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Features

• Drives 10 LEDs in dot or bar display mode
• Linear response (uniform steps) for accurate analog display
• Built-in precision voltage reference
• On-chip LED current regulation
• Adjustable display brightness and sensitivity
• Wide supply voltage range
• Low power consumption
• Cascadable for extended displays
• Minimal external components required
• DIP-18 package for easy PCB mounting and prototyping

Applications

• Audio level (VU) meters
• Voltage and current level indicators
• Signal strength indicators
• Battery and power monitoring
• Test and measurement equipment
• Industrial control panels
• Consumer electronics displays

lm3914-ic-datasheet