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Datasheet Texas Instruments LM48511SQ/NOPB

Datasheet Texas Instruments LM48511SQ/NOPB

ManufacturerTexas Instruments
Part NumberLM48511SQ/NOPB

3W, Ultra Low EMI, Mono Class D Audio Amplifier with Spread Spectrum 24-WQFN -40 to 85


  • Download » Datasheet, PDF, 1.0 Mb, Revision: H, 09-01-2015
    LM48511 3-W, Ultra-Low EMI, Filterless, Mono, Class D Audio Power Amplifier With Spread Spectrum (Rev. H)


Family: LM48511


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


Package TypeNHZ
Industry STD TermWQFN
Package QTY1000
CarrierLARGE T&R
Device Marking48511SQ
Width (mm)4
Length (mm)5
Thickness (mm).8
Pitch (mm).5
Max Height (mm).8
Mechanical DataDownload »


Analog Supply (V)(Max)5.5
Analog Supply (V)(Min)3
Approx. Price (US$)1.30 | 1ku
ArchitectureClass D Boosted
Audio Input TypeAnalog Input
Control InterfaceHardware
Iq per channel(Typ)(mA)13.5
Operating Temperature Range(C)-40 to 85
Output Power(W)6.7
Package GroupWQFN
Package Size: mm2:W x L (PKG)24WQFN: 20 mm2: 4 x 5(WQFN)
Shutdown Current (ISD)(uA)0.11
Speaker Channels(Max)Mono
THD + N @ 1 kHz(%)0.04

Eco Plan

Pb FreeYes

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: LM48511SQBD
    The LM48511 Integrates a Boost Converter with a High Efficiency
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • 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.

Moldel Line

Series: LM48511 (2)

Manufacturer's Classification

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