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LM3914N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
LM3914NNS212Yes

LM3914N** is a monolithic integrated circuit manufactured by **National Semiconductor (NS)**.

The LM3914N is a monolithic integrated circuit manufactured by National Semiconductor (NS).

Specifications:

  • Function: LED Driver / Dot/Bar Display Driver
  • Input Voltage Range: 3V to 15V
  • Output Current: 10mA to 30mA per LED
  • Number of Outputs: 10
  • Display Modes: Dot or Bar Mode (selectable)
  • Reference Voltage: Adjustable (1.2V to 12V)
  • Operating Temperature Range: 0°C to +70°C
  • Package: 18-Pin DIP (Dual In-line Package)
  • Accuracy: ±0.5dB (logarithmic scale)

Descriptions:

The LM3914N is a linear/logarithmic LED driver that drives 10 LEDs in either dot or bar mode. It is commonly used for VU meters, battery level indicators, and analog signal displays. The device includes an adjustable internal voltage reference and can operate over a wide supply voltage range.

Features:

  • Drives LEDs, LCDs, or Vacuum Fluorescent Displays
  • Internal Voltage Reference (1.2V to 12V)
  • Programmable Current Output (10mA to 30mA per LED)
  • Logarithmic or Linear Scale Selectable
  • Low Standby Current (6mA typical)
  • Wide Supply Voltage Range (3V to 15V)
  • Directly Drives TTL or CMOS Logic

This IC is widely used in audio equipment, instrumentation, and automotive dashboards for visual signal level indication.

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