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LM3914 Dot Bar Display Driver IC DIP-18_1

LM3914 Dot Bar Display Driver IC DIP-18_PI N OUT

LM3914 Dot Bar Display Driver IC DIP-18_3

LM3914 Dot Bar Display Driver IC DIP-18

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Product SKU: INTEG097

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Specification

Description

The LM3914 is a popular integrated circuit (IC) that functions as a dot/bar display driver. It is commonly used to drive LED bar graph displays or other visual indicators.

Here's some information about the LM3914

Functionality: The LM3914 is designed to drive a series of LEDs to indicate the level of an analog signal. It can be configured to operate either as a dot mode (individual LEDs light up) or as a bar mode (a series of LEDs form a bar graph).

DIP-18 Package: The "DIP-18" designation indicates that the IC is packaged in a Dual Inline Package with 18 pins.

Pin Configuration: The LM3914 typically has 18 pins, and its pin functions include inputs for the analog signal, reference voltage, and outputs to drive LEDs.

Voltage Range: The LM3914 can operate over a wide voltage range, making it suitable for various applications.

Adjustable Voltage Reference: The LM3914 allows the user to set a reference voltage, and the LEDs light up based on the comparison between the input signal and this reference voltage.

Applications:

Common applications include audio level meters, VU meters, battery level indicators, and other visual displays of analog signal levels.

Features

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 a 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
LED Driver Outputs are currently regulated, Open-collectors
Outputs can Interface with TTL or CMOS Logic
The Internal 10-step Divider is Floating and can be Referenced to a Wide Range of Voltages