LM3915 Datasheet, PDF

The LM3915 is a monolithic integrated circuit (IC) designed to function as a linear analog display driver. It's commonly used in various applications where analog voltage levels need to be visually represented, such as audio level meters, VU meters, battery charge indicators, and more. Here are the key features and specifications of the LM3915:

Linear Analog Display Driver: The LM3915 is specifically designed to drive a linear array of LEDs or other display elements based on an analog input voltage. Each LED corresponds to a specific voltage range or segment of the input voltage.

Logarithmic Scaling Option: While the LM3915 inherently operates in a linear mode, it can be configured externally to provide a logarithmic response, suitable for applications such as audio level meters where human perception of loudness is logarithmic.

Wide Voltage Range: The LM3915 can operate over a wide range of supply voltages, typically from 3 volts to 25 volts, allowing flexibility in various power supply configurations.

Adjustable LED Brightness: The LM3915 allows for the adjustment of LED brightness via an external resistor, enabling customization based on specific application requirements.

Cascade Mode: Multiple LM3915 ICs can be cascaded together to drive larger display arrays or to extend the resolution of the display.

Bar and Dot Display Modes: The LM3915 supports both bar graph and dot display modes, selectable via an external pin, providing flexibility in the visual representation of analog input levels.

Linear or Logarithmic Scales: The LM3915 offers the flexibility to select between linear and logarithmic scaling of the LED display segments, depending on the application requirements.

Low Power Consumption: The LM3915 features low power consumption, making it suitable for battery-powered applications and energy-efficient designs.

Package Type: The LM3915 is commonly available in a PDIP (Plastic Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package, offering ease of integration into various electronic circuits and PCB layouts.

Application: The LM3915 is widely used in various audio and visual display applications requiring analog voltage level indication, such as audio level meters, VU meters, battery charge indicators, and more.

Distributor	Part #	Manufacturer	Description	Price	Qty. BuyNow

LM3915 Datasheet, PDF

LM3915 Datasheet, PDF [Old version datasheet]

LM3915 Distributor

Brief Description of LM3915

Link URL