National Semiconductor LM3916 Dot Bar Display Driver Data Sheet
Summary
The LM3916 IC is a highly versatile integrated circuit display driver for building professional electronic indicators. It provides robust solutions for generating dot or bar graphs, making it ideal for replicating classic analog gauges like VU meters and power monitors in modern systems. This technical summary outlines the component's operational range (3V–25V), programmable LED current control, and wide-ranging input capabilities for audio and signal monitoring applications. Designed for engineers and technicians, this manual provides comprehensive details needed to implement reliable and accurate analog visualization displays.
Manual Details
| Brand | National |
|---|---|
| Pages | 28 |
| File Size | 972.52 KB |
| Published | May 29, 2026 |
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Frequently Asked Questions
How do I switch the display between dot mode and bar mode?
For bar mode, you must connect pin 9 to pin 3.
What types of devices can the LM3916 drive?
It is versatile enough to drive LCDs, vacuum fluorescents, incandescent bulbs, or various colored LEDs.
What operating voltage range does this device require?
The IC operates using a single supply ranging from a low of 3V up to 25V.
How do I control the brightness of the installed LEDs?
You can easily control the LED brightness using only a single potentiometer (pot).