LM4834MS/NOPB

Audio Amplifiers Overview

The LM4834MS/NOPB is a monaural audio amplifier IC from Texas Instruments, belonging to the Boomer series. It operates on a single supply voltage ranging from 4.5V to 5.5V and is housed in a 28-SSOP package with a width of 5.30mm. The device delivers a maximum output power of 1.1W into an 8-ohm load or 95mW into two 32-ohm loads for stereo headphone applications. It functions as a Class AB amplifier and supports operation across a temperature range of -40°C to 85°C.

Audio Amplifiers Feature Summary

• Integrated pop-and-click suppression circuitry to eliminate audible noise during power-up and power-down sequences.
• Built-in thermal protection mechanism that automatically shuts down the output stage when excessive junction temperatures are detected.
• Supports multiple control features including microphone input, mute functionality, shutdown mode, and volume control.

Audio Amplifiers Applications

• Single-channel (monaural) audio amplification
• Stereo headphone driver circuits
• Portable electronic devices requiring low-voltage operation

Audio Amplifiers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and environmental specifications. Check current availability status as this part may be subject to discontinuation or lifecycle changes. Ensure proper handling procedures are followed for surface-mount components.

Audio Amplifiers Selection Notes

Select this component for designs requiring a single-supply Class AB amplifier with integrated protection features. Consider the 28-SSOP package constraints for PCB layout. Evaluate the power delivery requirements against the specified load impedances to ensure adequate performance margins.

Audio Amplifiers Part Context

This device is part of the LM4834 family within Texas Instruments' Boomer audio amplifier portfolio. It is designed for portable consumer electronics where space efficiency and audio quality are critical. The NOPB suffix indicates lead-free construction compliant with RoHS standards.

Audio Amplifiers Replacement Considerations

Consult official documentation for verified substitute part numbers. Verify pin compatibility and electrical specifications before substitution.

Audio Amplifiers FAQ

What is the operating supply voltage range?

The LM4834MS/NOPB operates within a supply voltage range of 4.5V to 5.5V.

Does the amplifier include pop-and-click suppression?

Yes, the device features integrated pop-and-click suppression to prevent audible transients during startup and shutdown.