LM3914 Dot/Bar Display Driver

Fr 1,000.00

LM3914 is an analog controlled LED driver IC, meaning it can control (turn on or off) 10 LED lights based on an analog input voltage. This IC eliminates the need for microcontroller and programming and also reduces the hardware required to control 10 LEDs.


The analog input voltage can vary from 3V to 18V and the LED current can be limited by simply using a single resistor on pin 7 (Ref Out). The IC also has two operating modes DOT mode and BAR mode, also more than one IC can be cascaded to control upto 100 LEDs. Since the LEDs can be controlled without any flickering and flawlessly with equal brightness these IC’s are commonly used in visual alarms and other metering/monitoring applications.  So, if you are looking for an IC to driver your bar LED lights or other sequence of 10 LED then this IC might be of interest to you.


  • Analog Controlled LED Driver IC
  • Number of controllable LEDs: 10
  • Operating Voltage: 3V to 18V
  • Input Analog voltage range: 1.2V to 12V
  • LED sink current: 2mA to 30mA (programmable)
  • Both Dot/Bar mode available
  • Can be cascaded to control upto 100 LEDs
  • Available in 18-pin DIP, PLCC package



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