LM3914 - Dot/Bar Display Driver | Circuit Project Electronic

LM3914 - Dot/Bar Display Driver

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Source :: http://www.national.com/pf/LM/LM3914.htmlï¿½

Features

ï¿½	Drives LEDs, LCDs or vacuum fluorescents
ï¿½	Bar or dot display mode externally selectable by user
ï¿½	Expandable to displays of 100 steps
ï¿½	Internal voltage reference from 1.2V to 12V
ï¿½	Operates with single supply of less than 3V
ï¿½	Inputs operate down to ground
ï¿½	Output current programmable from 2 mA to 30 mA
ï¿½	No multiplex switching or interaction between outputs
ï¿½	Input withstands ï¿½35V without damage or false outputs
ï¿½	LED driver outputs are current regulated, open-collectors
ï¿½	Outputs can interface with TTL or CMOS logic
ï¿½	The internal 10-step divider is floating and can be referenced to a wide range of voltages

General Description

The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display

ï¿½Block Diagram

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This entry was posted on Tuesday, May 29th, 2007 at 1:47 pm and is filed under LED Flasher, Lighting. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.