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LM3915N - Dot/Bar Display Driver

Download the LM3915N datasheet PDF. This datasheet also covers the LM3915 variant, as both devices belong to the same dot/bar display driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The LM3915 is a monolithic integrated circuit that senses analog voltage levels and drives ten LEDs, LCDs or vacuum fluorescent displays, providing a logarithmic 3 dB/step analog display.

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

Key Features

  • 1.
  • 2 3 dB/step, 30 dB Range.
  • Drives LEDs, LCDs, or Vacuum Fluorescents.
  • Bar or Dot Display Mode Externally Selectable by User.
  • Expandable to Displays of 90 dB.
  • Internal Voltage Reference from 1.2V to 12V.
  • Operates with Single Supply of 3V to 25V.
  • Inputs Operate Down to Ground.
  • Output Current Programmable from 1 mA to 30 mA.
  • Input Withstands ±35V without Damage or False Outputs.
  • Outputs are Current Regulated,.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM3915-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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LM3915N Dot/Bar Display Driver National Semiconductor
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LM39101 1A Low-Voltage Low-Dropout Regulator HTC

Other Datasheets by Texas Instruments

Part Number Description
LM3915 Dot/Bar Display Driver
LM3914 Dot/Bar Display Driver
LM3916 Dot/Bar Display Driver
LM3900 QUADRUPLE NORTON OPERATIONAL AMPLIFIER
LM392 LOW-POWER OPERATIONAL AMPLIFIER AND VOLTAGE COMPARATOR

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.

View original datasheet text
LM3915 www.ti.com SNVS740C – JANUARY 2000 – REVISED MARCH 2013 LM3915 Dot/Bar Display Driver Check for Samples: LM3915 FEATURES 1 •2 3 dB/step, 30 dB Range • Drives LEDs, LCDs, or Vacuum Fluorescents • Bar or Dot Display Mode Externally Selectable by User • Expandable to Displays of 90 dB • Internal Voltage Reference from 1.2V to 12V • Operates with Single Supply of 3V to 25V • Inputs Operate Down to Ground • Output Current Programmable from 1 mA to 30 mA • Input Withstands ±35V without Damage or False Outputs • Outputs are Current Regulated, Open Collectors • Directly Drives TTL or CMOS • The Internal 10-step Divider is Floating and can be Referenced to a Wide Range of Voltages The LM3915 is Rated for Operation from 0°C to +70°C. The LM3915N-1 is Available in an 18lead PDIP Package.