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2 - 3 Days LM3914 - Dot/Bar Display Driver
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This is the LM3914 Dot/Bar display analog-controlled LED driver that uses an alinear output scale. With this driver all it takes is a single, analog signal to drive a string of 10+ LEDs, which can be configured into either bar mode (where all LEDs below a certain point turn on) or dot mode (with only a single LED on at a time). Hook them up properly, and you can create all sorts of nifty multi-LED displays.

The LM3914 is very easy to apply as an analog meter circuit. A 1.2V full-scale meter requires only 1 resistor and a single 3V to 15V supply in addition to the 10 display LEDs. If the 1 resistor is a pot, it becomes the LED brightness control. The simplified block diagram illustrates this extremely simple external circuitry.


Feature:

 

  • Provides a Linear Analog Display from Analog Voltage Input
  • 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 voltage

Datasheet:

https://www.ti.com/lit/ds/symlink/lm3914.pdf

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LM3914 - Dot/Bar Display Driver

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  • Product Code: LM3914N
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  • Availability: 2 - 3 Days
  • Rs. 57.82
  • Exclusive of GST: Rs. 49.00

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