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LM3916 - Dot/Bar Display Driver

View LM3916N-1/NOPB: LM3916 -Dot/Bar Display Driver (Interface)

LM3916N-1/NOPB: LM3916 -Dot/Bar Display Driver (Interface)

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Texas Instruments
Jameco Part no. 839914
Manufacturer no. LM3916N-1/NOPB
  RoHS compliant
   NCNR (Non-Cancelable, Non Returnable)
web exclusive
Pricing & Availability


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1+ $2.95
10+ $2.75
100+ $2.49
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LM3916 - Dot/Bar Display Driver

The LM3916 is a monolithic integrated circuit that senses analog voltage levels and drives ten LEDs, LCDs or vacuum fluorescent displays, providing an electronic version of the popular VU meter. One pin changes the display from a bar graph to a moving dot display. LED current drive is regulated and programmable, eliminating the need for current limiting resistors. The whole display system can operate from a single supply as low as 3V or as high as 25V.

The IC contains an adjustable voltage reference and an accurate ten-step voltage divider. The high-impedance input buffer accepts signals down to ground and up to within 1.5V of the positive supply. Further, it needs no protection against inputs of ±35V. The input buffer drives 10 individual comparators referenced to the precision divider. Accuracy is typically better than 0.2 dB.

Audio applications include average or peak level indicators, and power meters. Replacing conventional meters with an LED bar graph results in a faster responding, more rugged display with high visibility that retains the ease of interpretation of an analog display. The outputs can drive LCDs, vacuum fluorescents and incandescent bulbs as well as LEDs of any color. Multiple devices can be cascaded for a dot or bar mode display for increased range and/or resolution.


  • Fast responding electronic VU meter
  • Drivers LEDs, LCDs, or vacuum fluorescents
  • Bar or dot display mode externally selectable by user
  • Expandable to displays of 70 dB
  • Internal voltage reference from 1.2V to 12V
  • Operates with single supply of 3V to 25V
  • Inputs operate down to ground
  • Output current programmable from 1 mA to 30 mA
  • Input withstands ±35V without damage or false outputs
  • Outputs are current regulated, open collectors
  • Directly drives TTL or CMOS
  • The internal 10-step divider is floating and can be referenced to a wide range of voltages
  • Operating temperature: 0°C to +70°C
  • Molded DIP-18 package

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  • Specification Value
    Maximum Supply Current9200uA
    MountingThrough Hole
    Product Width6.35mm
    Product Height3.3mm
    Specification Value
    Product Length22.86mm
    Product TypeLED Driver
    Number of Segments10
    Minimum Operating Supply Voltage3V
    Typical Operating Supply Voltage3.3V|5V|9V|12V|15V|18V|24V
    Maximum Operating Supply Voltage25V
    Maximum Power Dissipation1365mW

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