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LM3914 analog voltage level DOT/BAR Display driver IC

LM3914 analog voltage level DOT/BAR Display driver IC - Other -
LM3914 analog voltage level DOT/BAR Display driver IC - Other -
-35 %
LM3914 analog voltage level DOT/BAR Display driver IC - Other -
LM3914 analog voltage level DOT/BAR Display driver IC - Other -
LM3914 analog voltage level DOT/BAR Display driver IC

(inc GST)

  • Stock: In Stock
  • SKU: FR-05-613
    10 or more ₹31
    50 or more ₹30


The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs providing a linear analog display. A single pin changes the display from a moving dot to a bar graph. The current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows the operation of the whole system from less than 3V.


  • Drives LEDs, LCDs or Vacuum Fluorescents
  • Expandable to Displays of 100 Steps
  • Internal Voltage Reference from 1.2V to 12V
  • Inputs Operate Down to Ground
  • LED Driver Outputs are Current Regulated,


  • 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 up to 100 LEDs
  • Available in 18-pin DIP, PLCC package


LM3914 Pin Configuration:-

Pin Number

Pen Name


1 and 10 to 18

LED1, LED2, LED3.....LED10

The 10 LEDs which has to be controlled is connected to these pins


V- / Ground

Ground pin of the IC


V+ / Vcc

Supply Voltage (3-18)V



Low-level voltage for potential divider



Analog signal Input pin based on which the LED is controlled.



High-Level voltage for potential divider



Output Reference Voltage for LED current limiting



Adjust pin for voltage reference



Select between Dot/Bar Mode

Where to use LM3914?
The 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 up to 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 sequences of 10 LED then this IC might be of interest to you.
How to use an LM3914?
The advantage of using LM3914 is that it requires minimum hardware and can be easily set up. We simply have to connect the 10 LEDs to the IC, set the reference voltages for input voltage and limit the current through the LED and we are all set. The below circuit is a typical application circuit for LM3914.

Package Includes:-

  • 1 x  LM3914 IC
Questions2 Answers2 | Expand All
Can i get GST invoice for the order ?
Shubham Bhausaheb Modake
  • Yes, You can claim GST credit if you have a GST number. To do it you have to mention the GST number at the time of checkout. GST option appears in the Billing Address. If you are an existing customer of flyrobo then you can log in to your account ( Account → Address Book → Edit Address) and Then enter your GST number.
    FlyRobo[ 16/11/2022 ]
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When will delivered order?
  • Order will be delivered within 1-3 days in metro city, 3-5 days in other city and 4-7 days in villages or small city. This is the average time of delivery in express shipping. but can change with different locations and different situations.
    FlyRobo[ 16/07/2021 ]
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