LM4881

ACTIVE

200-mW, stereo, analog input, headphone amplifier

Top

Product details

Parameters

Output power (W) 0.15 Analog supply (Min) (V) 2.7 Analog supply (Max) (V) 5.5 PSRR (dB) 50 Rating Catalog Operating temperature range (C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (uA) 0.7 Architecture Class-AB Iq per channel (Typ) (mA) 1.8 open-in-new Find other Headphone amps

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Headphone amps

Features

  • VSSOP Surface Mount Packaging
  • Unity-gain Stable
  • External Gain Configuration Capability
  • Thermal Shutdown Protection Circuitry
  • No Bootstrap Capacitors, or Snubber Circuits are Necessary

Key Specifications

  • THD+N at 1kHz at 125mW Continuous Average Output Power into 8Ω 0.1% (max)
  • THD+N at 1kHz at 75mW Continuous
    0.02% (typ)
  • Output Power at 10% THD+N at 1kHz into 8Ω 300 mW (typ)
  • Shutdown Current 0.7µA (typ)
  • Supply Voltage Range 2.7V to 5.5 V

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

open-in-new Find other Headphone amps

Description

The LM4881 is a dual audio power amplifier capable of delivering 200mW of continuous average power into an 8Ω load with 0.1% THD+N from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4881 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4881 features an externally controlled, low power consumption shutdown mode which is virtually clickless and popless, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4881 can be configured by external gain-setting resistors.

open-in-new Find other Headphone amps
Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Datasheet LM4881 Dual 200 mW Headphone Amplifier with Shutdown Mode datasheet (Rev. D) May 02, 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos