LM4875MX/NOPB by Texas Instruments | Audio Amplifier | Avnet ASIA
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LM4875MX/NOPB

Texas Instruments

Audio Amp Headphone/Speaker 1-CH Mono/2-CH Stereo 1W Class-AB 8-Pin SOIC N T/R

Manufacturer Part #: LM4875MX/NOPB

Alternate Part #: LM4875MX/NOPB


legend RoHS Compliant

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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 8Ω 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 = 0.7µA, 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.

 

Key Features

  • Precision DC Voltage Volume Control
  • Headphone Amplifier Mode
  • “Click and Pop” Suppression
  • Shutdown Control When Volume Control Pin Is Low
  • Thermal Shutdown Protection
  • PO at 1.0% THD+N Into 8Ω; 750 mW (typ)
  • PO at 10% THD+N Into 8Ω; 1 W (typ)
  • Shutdown Current; 0.7µA(typ)
  • Supply Voltage Range; 2.7V to 5.5 V
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Maximum Single Supply Voltage
    5.5 V
    Typical Single Supply Voltage
    3|5 V
    MSL Level
    1
    Rail to Rail
    No
    Amplifier Type
    Class-AB
    Total Harmonic Distortion Noise
    0.6@8Ohm@300mW %
    Supplier Package
    SOIC N
    Lead Finish
    Tin
    Pin Count
    8
    Product Dimensions
    4.9 x 3.9 x 1.45 mm
    Max Processing Temp
    260
    Typical PSRR
    50 dB
    Minimum Single Supply Voltage
    2.7 V
    Typical Output Power x Channels @ Load
    1x1@8Ohm|0.11x2@32Ohm W
    Function
    Headphone/Speaker
    Maximum Load Resistance
    32 Ohm
    Output Signal Type
    Differential|Single
    Input Signal Type
    Single
    Output Type
    1-Channel Mono|2-Channel Stereo
    Power Supply Type
    Single
    Mounting
    Surface Mount
    Typical Voltage Gain
    72 dB

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542.31.0000
    HTSN:
    8542.31.0000
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101
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