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LM3914 - Dot/Bar Display Driver

General Description

The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display.

A single pin changes the display from a moving dot to a bar graph.

Current drive to the LEDs is regulated and programmable, eliminating the need for resistors.

Key Features

  • 1.
  • 2 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.
  • Inputs Operate Down to Ground.
  • Output Current Programmable from 2 mA to 30 mA.
  • No Multiplex Switching or Interaction Between Outputs.
  • Input Withstands ±35V without Damage or False Outputs.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM3914 www.ti.com SNVS761B – JANUARY 2000 – REVISED MARCH 2013 LM3914 Dot/Bar Display Driver Check for Samples: LM3914 FEATURES 1 •2 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.