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Datasheet Texas Instruments LM4809MM/NOPB

Datasheet Texas Instruments LM4809MM/NOPB

ManufacturerTexas Instruments
Part NumberLM4809MM/NOPB

LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode 8-VSSOP -40 to 85


  • Download » Datasheet, PDF, 1.8 Mb, Revision: F, 04-05-2013, File uploaded 03-21-2018
    LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode datasheet
    Docket ↓
    LM4809, LM4809LQBD SNAS126F – FEBRUARY 2001 – REVISED APRIL 2013 LM4809 Dual 105mW Headphone Amplifier with ActiveLow Shutdown Mode
    Check for Samples: LM4809, LM4809LQBD FEATURES DESCRIPTION The LM4809 is a dual audio power amplifier capable
    of delivering 105mW per channel of continuous
    average power into a 16Ω load with 0.1% (THD+N)
    from a 5V power supply. 1 2 Active-Low Shutdown Mode
    "Click and Pop" Reduction Circuitry
    Low Shutdown Current
    WSON, MSOP, and SOIC Surface Mount
    No Bootstrap Capacitors Required
    Unity-Gain Stable APPLICATIONS Headphone Amplifier
    Personal Computers
    Microphone Preamplifier
    PDA's Boomer audio power amplifiers were designed
    specifically to provide high quality output power with a
    minimal amount of external components. Since the
    LM4809 does not require bootstrap capacitors or
    snubber networks, it is optimally suited for low-power
    portable systems.
    The unity-gain stable LM4809 can be configured by
    external gain-setting resistors.
    The LM4809 features an externally controlled, activelow, micropower consumption shutdown mode, as ...


Family: LM4809


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


Package TypeDGK
Industry STD TermVSSOP
Package QTY1000
CarrierLARGE T&R
Device MarkingG09
Width (mm)3
Length (mm)3
Thickness (mm).97
Pitch (mm).65
Max Height (mm)1.07
Mechanical DataDownload »


Analog Supply (V)5.5 Min
Headphone ChannelsStereo
Iq per channel(Typ)0.7 mA
Load(Min)16 ohms
Operating Temperature Range-40 to 85 C
Output Power0.105 W
Package GroupVSSOP
Package Size: mm2:W x L8VSSOP: 15 mm2: 4.9 x 3(VSSOP) PKG
Shutdown Current (ISD)0.4 uA
Volume ControlNo

Eco Plan


Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: LM4809MBD
    LM4809M Evaluation Module
    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, 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: LM4809 (3)

Manufacturer's Classification

  • Semiconductors > Audio > Low-Power Audio Amplifiers (<10W) > Headphone Amplifier
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