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LM4875MM

LM4875MM Description

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

LM4875MM Categories

Audio Power Amplifiers

LM4875MM Manufacturer

National Semiconductor

LM4875MM Datasheet (PDF)

LM4875MM Datasheet

LM4875MM Price & Availability


Check LM4875MM Price & Availability at Canics

LM4875MM Features

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

LM4875MM 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.

    LM4875MM Parameters

    StatusFull production
    PackageMINI SOIC
    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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