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LED Driver Dot / Bar Display LM3915N-1

LED Driver Dot / Bar Display LM3915N-1

The LM3915 is a versatile monolithic integrated circuit designed to sense analog voltage levels and drive LED, LCD, or vacuum fluorescent displays in a logarithmic 3 dB/step fashion. It offers features such as selectable bar or dot display modes, a wide operating voltage range from 3V to 25V, and programmable LED brightness control. Its applications range from audio level indicators to power meters and RF signal strength meters.

Package Includes:

  • 1 x LM3915 Integrated Circuit

4.20 AED 4.20 AED Tax Included
4.20 AED Tax Included

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Features:

  • 3 dB/step logarithmic display with a 30 dB range
  • Suitable for driving LEDs, LCDs, or vacuum fluorescents
  • Selectable bar or dot display mode
  • Expandable to displays of 90 dB
  • Inputs operate down to ground level
  • Programmable output current from 1 mA to 30 mA
  • Input withstands ±35V without damage
  • Outputs are current-regulated and open collectors
  • Directly drives TTL or CMOS
  • The internal 10-step divider can be referenced to a wide range of voltages

Specifications:

  • Type: Analog Controlled LED Driver IC with Logarithmic Output
  • Display Range: 30 dB using 10 LEDs (3 dB per LED)
  • Controllable LEDs: 10
  • Operating Voltage: 3V to 25V
  • Reference Voltage: 1.2V to 12V
  • LED Sink Current: 1 mA to 30 mA (programmable)
  • Display Modes: Dot/Bar

Pinout:

LM3915 Dot/Bar Display Driver Pinout