LM3915 Dot/Bar Display Driver

LM3915 Dot/Bar Display Driver IC

LM3915 Driver IC + Senses voltage levels + Drives 10 LEDs or LCDs with adjustable reference.

The LM3915 Dot/Bar Display Driver IC is designed to sense analog voltage levels and drive ten LEDs, LCDs, or vacuum fluorescent displays. It offers a logarithmic 3 dB/step analog display, allowing versatility in applications. With a supply range of 3V to 25V, it includes an adjustable voltage reference and a precise ten-step voltage divider, making it suitable for various electronic projects in India.

This LM3915 IC features an input buffer that accepts signals down to ground and withstands inputs of ±35V without damage. It is user-friendly, requiring minimal components for setup. A simple resistor can program the full scale from 1.2V to 12V, independent of supply voltage. Users can select between bar or dot display modes easily, making it adaptable for different visual requirements.

Ideal for applications in audio equipment, instrumentation, and any display needs, the LM3915 can also be cascaded with other display drivers for extended functionality. Its ability to drive various display types, coupled with accurate performance, ensures it is an essential component for electronics enthusiasts and professionals in India.

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Features of LM3915 Dot/Bar Display Driver IC

• 3 dB/step, 30 dB Range
• Drives LEDs, LCDs, or Vacuum Fluorescents
• Bar or Dot Display Mode Externally Selectable
• Expandable to Displays of 90 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 30mA
• Input Withstands ±35V without Damage

Specification of LM3915 Dot/Bar Display Driver IC

• Operating Voltage: 3V to 25V
• Input Voltage Range: ±35V
• Output Current: 1 mA to 30 mA
• Display Range: 30 dB
• Full Scale Voltage: 1.2V to 12V

Applications of LM3915 Dot/Bar Display Driver IC

• Audio level meters
• Instrumentation displays
• Visual indicators in electronic devices
• Bar graph displays
• Custom LED projects

Related Links for LM3915 Dot/Bar Display Driver IC

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Package Includes

• 1 X LM3915 Dot/Bar Display Driver IC