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Datasheet Texas Instruments LM4673SD/NOPB

Datasheet Texas Instruments LM4673SD/NOPB

ManufacturerTexas Instruments
Part NumberLM4673SD/NOPB

Filterless, 2.65W, Mono, Class D Audio Power Amplifier 8-WSON -40 to 85


  • Download » Datasheet, PDF, 4.5 Mb, Revision: D, 05-01-2013
    LM4673 Filterless, 2.65W, Mono, Class D Audio Power Amplifier (Rev. D)


Family: LM4673


Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes


Package TypeNGQ
Industry STD TermWSON
Package QTY1000
CarrierLARGE T&R
Device MarkingL4673
Width (mm)3
Length (mm)3
Thickness (mm).8
Pitch (mm).5
Max Height (mm).8
Mechanical DataDownload »


Analog Supply (V)(Max)5.5
Analog Supply (V)(Min)2.4
Approx. Price (US$)0.65 | 1ku
ArchitectureClass D
Audio Input TypeAnalog Input
Control InterfaceHardware
Iq per channel(Typ)(mA)2.6
Operating Temperature Range(C)-40 to 85
Output Power(W)2.65
Package GroupWSON
Package Size: mm2:W x L (PKG)See datasheet (WSON)
Shutdown Current (ISD)(uA)0.01
Speaker Channels(Max)Mono
THD + N @ 1 kHz(%)0.03

Eco Plan

Pb FreeYes

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: LM4673TMBD
    LM4673TMBD Filterless, 2.65W, Mono, Class D Audio Power Amplifier Evaluation Board
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • Download » Application Notes, PDF, 154 Kb, Revision: B, 05-01-2013
    AN-1614 LM48510 Speaker AN- (Rev. B)
    This application report provides information on the performance of the LM48510 and the LM4673 in astereo application.
  • Download » Application Notes, PDF, 765 Kb, 10-30-2001
    Guidelines for Measuring Audio Power Amplifier Performance
    This application note provides guidelines for measuring the date sheet parameters of Texas Instruments audio power amplifiers (APAs) using prefabricated evaluation modules (EVMs). The primary equipment used for the measurements consists of the System Two audio measurement system by Audio Precision , a digital multimeter (DMM), and a dc power supply.
  • Download » Application Notes, PDF, 140 Kb, Revision: A, 05-01-2013
    AN-1737 Managing EMI in Class D Audio Applications (Rev. A)
    Electromagnetic interference (EMI) is an unwanted disturbance caused in an electrical circuit byelectromagnetic radiation emitted from an external source. The disturbance may interrupt, obstruct, orotherwise degrade the effective performance of the circuit.
  • Download » Application Notes, PDF, 1.9 Mb, Revision: B, 05-01-2013
    AN-1849 An Audio Amplifier Power Supply Design (Rev. B)
    This application report provides design information for a power supply for use with our newest offering of high-performance, ultra high-fidelity audio amplifier input stage ICs.
  • Download » Application Notes, PDF, 190 Kb, Revision: A, 05-01-2013
    AN-1497 Filterless Class D Amplifiers (Rev. A)
    As portable electronic devices continue to shrink in size, manufacturers look for ways to push theenvelope and develop the smallest, yet most functional product available. The promise of longer batterylife, smaller size and an enhanced sensory experience appeals to customers. Like the voltage regulatormarket, where system designers moved away from the simple but power hungry linear regulator

Moldel Line

Series: LM4673 (3)

Manufacturer's Classification

  • Semiconductors > Audio > Low-Power Audio Amplifiers ( Speaker Amplifier Class AB/Class D
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