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LM3915, LM3 Datasheet - National Semiconductor

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

* n n n n n n n n n n n n 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 cur

LM3-915.pdf

This datasheet PDF includes multiple part numbers: LM3915, LM3. Please refer to the document for exact specifications by model.
LM3915 Datasheet Preview Page 2 LM3915 Datasheet Preview Page 3

Datasheet Details

Part number:

LM3915, LM3

Manufacturer:

National Semiconductor

File Size:

602.42 KB

Description:

Dot/bar display driver.

Note:

This datasheet PDF includes multiple part numbers: LM3915, LM3.
Please refer to the document for exact specifications by model.

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