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 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 current 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
General Description
The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display
Block Diagram
Source :: http://www.national.com/pf/LM/LM3914.htm
Related Links
More datasheets
LED Display
Dot bar Display
Circuit basic dot-bar Display for LM3914
LED VU Meter by LM339
This entry was posted on Tuesday, May 29th, 2007 at 1:47 pm and is filed under LED Flasher, Lighting.
