LM3916N-1

Display Drivers Overview

The LM3916N-1 is a dot/bar display driver manufactured by Texas Instruments, designed for visual signal level indication. It features an internal voltage reference and operates with a single power supply ranging from 3V to 20V. The device provides ten constant-current sinks capable of driving LEDs directly. It supports logarithmic scaling for audio applications and includes a mute function controlled by the input signal level. The component is housed in an 18-pin MDIP package suitable for through-hole mounting.

Display Drivers Feature Summary

• Integrated constant-current sinks for direct LED drive
• Logarithmic scale output configuration
• Internal voltage reference circuit
• Input-controlled mute functionality

Display Drivers Applications

• Audio signal level meters
• Peak level indicators
• Visual display drivers for consumer electronics

Display Drivers Procurement Notes

Verify the specific suffix N-1 against the datasheet to confirm the logarithmic scale variant. Ensure the ordering part number matches the required package type and temperature range. Confirm RoHS compliance status if applicable to the manufacturing batch. Cross-reference the manufacturer code to ensure authenticity from Texas Instruments or authorized sources.

Display Drivers Selection Notes

Select this component when a logarithmic response curve is required for audio level visualization. Compare against linear variants like the LM3914 if a different scale is needed. Verify that the supply voltage range aligns with the system design constraints. Consider the current sink capabilities relative to the LED forward voltage requirements.

Display Drivers Part Context

This device belongs to the LM391x family of display drivers from Texas Instruments. It shares architectural similarities with the LM3914 and LM3915 but differs in its internal resistor network configuration to provide a logarithmic output characteristic. The family is widely used in analog-to-digital visual representation tasks.

Display Drivers Replacement Considerations

• LM3916N-1/NOPB

Display Drivers FAQ

What is the primary difference between the LM3916 and LM3914?

The LM3916 provides a logarithmic scale output suitable for audio levels, whereas the LM3914 provides a linear scale output.

How is the mute function activated?

The mute function is activated when the input signal level drops below a specific threshold, turning off all LED outputs.