LM4839LQ/NOPB

$1.64

Description：IC AMP CLASS AB STER 2.2W 28WQFN
Series：Boomer®
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:ad36fbf17e73 Category: Audio Amplifiers Brand: Texas Instruments

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Product introduction

LM4839LQ/NOPB is listed in the Audio Amplifiers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC AMP CLASS AB STER 2.2W 28WQFN. Review the specifications below when checking this part for your BOM.

Audio Amplifiers specifications for LM4839LQ/NOPB

Description：IC AMP CLASS AB STER 2.2W 28WQFN
Series：Boomer®
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Type：Class AB
Output Type：2-Channel (Stereo) with Stereo Headphones
Max Output Power x Channels @ Load：2.2W x 2 @ 3Ohm; 95mW x 2 @ 32Ohm
Voltage - Supply：2.7V ~ 5.5V
Features：Bass Boost, Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control
Mounting Type：Surface Mount
Supplier Device Package：28-WQFN (5x5)
Package / Case：28-WFQFN Exposed Pad
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

Audio Amplifiers datasheet and documents for LM4839LQ/NOPB

LM4839LQ/NOPB

Audio Amplifiers Overview

The LM4839LQ/NOPB is a stereo audio power amplifier featuring DC volume control, bass boost, and input multiplexing. It delivers 2W into 4Ω or 2.2W into 3Ω with less than 1.0% THD+N. The device operates on a single supply voltage ranging from 2.7V to 5.5V. It incorporates click and pop suppression, thermal shutdown protection, and an externally controlled low-power shutdown mode. The component utilizes a 28-pin LLP package.

Audio Amplifiers Feature Summary

Integrates DC volume control interface for system flexibility
Includes selectable internal/external gain and bass boost capabilities
Features input multiplexer for multiple source selection
Provides click and pop suppression circuitry

Audio Amplifiers Applications

Portable and desktop computers
Multimedia monitors
Portable radios and PDAs
Portable televisions

Audio Amplifiers Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm that the LLP package variant matches the specific thermal design requirements of the target application. Ensure compatibility with existing PCB layouts designed for National Semiconductor specifications.

Audio Amplifiers Selection Notes

Select this component for applications requiring integrated volume control and input switching within a compact form factor. Evaluate thermal management strategies carefully, as the exposed die attach paddle requires proper soldering to the PCB copper plane for optimal heat dissipation and performance stability.

Audio Amplifiers Part Context

This part belongs to the Boomer series of audio integrated circuits designed by Texas Instruments (formerly National Semiconductor). The series focuses on high-quality audio reproduction with minimal external component requirements. The LM4839 specifically targets multimedia and portable electronics needing stereo amplification with advanced control features.