LM3915 Datasheet (Texas Instruments) - Dot/Bar Display Driver

LM3915, Dot/Bar Display Driver

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.

LED current drive is regulated and program

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