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LM4875M

LM4875M Description

750mW Audio Power Amplifier with DC Volume Control and Headphone Switch

LM4875M Categories

Audio Power Amplifiers

LM4875M Manufacturer

National Semiconductor

LM4875M Datasheet (PDF)

LM4875M Datasheet

LM4875M Price & Availability


Check LM4875M Price & Availability at Canics

LM4875M Features

  • Precision DC voltage volume control
  • Headphone amplifier mode
  • "Click and pop" suppression
  • Shutdown control when volume control pin is low
  • Thermal shutdown protection

LM4875M Description

    The LM4875 is a mono bridged audio power amplifier with DC voltage volume control. The LM4875 is capable of delivering 750mW of continuous average power into an 8 load with less than 1% THD when powered by a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is accomplished using the headphone sense pin. To conserve power in portable applications, the LM4875's micropower shutdown mode (IQ = 0.7ľA, typ) is activated when less than 300mV is applied to the DC Vol/SD# pin.

    Boomer audio power amplifiers are designed specifically to provide high power audio output while maintaining high fidelity. They require few external components and operate on low supply voltages.

    LM4875M Parameters

    StatusFull production
    PackageSOIC NARROW
    Temperature Min (deg C)-40
    Temperature Max (deg C)85
    Pins8
    Pricing$0.60
    Channels (Channels)1
    PSRR (dB)Vripple=200mWrms, RL=8 Ohms, CB=1uF, F=1KHz
    THD (%)Pout=30mW, f=20Hz-20KHz, RL=8Ohms
    User Supply (Volt)5
    Supply Range+2.7 - +5.5 V
    PowerAtEightOhms OnePercentTHD (Watt).75
    PowerAtEightOhms TenPercentTHD (Watt)1
    SNR Conditions50
    PSRR Conditions.60
    THD ConditionsNo
    Select parameters and click to see components with these parameters.

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    Keywords
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    LM4875M Circuit LM4875M Reference LM4875M PDF LM4875M RoHS