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LM3914 is a LED driver IC. It controls a BAR or DOT LED display by turning on and off depending on voltage levels and provides a linear analog display. The device does not require any programming or microcontroller and also eliminates the use of external resistors and other components. This IC features with its own reference voltage and accurate 10-step voltage divider.
Features
Drives 10 bar/dot LED display without a controller
User can externally select bar and display mode
Current regulated LED driver output
Can be expanded up to displays od 100 steps
No multiplex switching or interaction between outputs
Compatible with both TTL and CMOS logic
Single voltage supply
Specification
Operating voltage: 3V to 18V
Maximum supply voltage: 25V
Analog input voltage range: 1.2V to 12V
Input bias current: 25nA to 100nA
Reference load current ( maximum): 10mA
Power dissipation: 1365mW
Storage temperature: -55? to 150?
Application
Battery level indicator
Cost-effective electronic display
Fade bar
Digital gauges
Product Details :
IC | LM3914 |
Function | 10 bar or dot LED display driver |
Number of pins | 18 |
Mounting type | through holes |
Package | DIP-18 plastic tube package |
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