The LM4875 is a mono bridged audio power amplifier with DC voltage volume control. TheLM4875 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 (singleended) mode is accomplished using the headphone sense pin. To conserve power in portableapplications, the LM4875's micropower shutdown mode (IQ = 0.7µA, typ) isactivated when less than 300mV is applied to the DC Vol/SD pin.

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

  • Precision DC Voltage VolumeControl
  • Headphone Amplifier Mode
  • “Click and Pop”Suppression
  • Shutdown Control When Volume Control Pin IsLow
  • Thermal Shutdown Protection

Key Specifications

  • PO at 1.0% THD+N Into 8?; 750mW (typ)
  • PO at 10% THD+N Into 8?; 1 W(typ)
  • Shutdown Current; 0.7µA(typ)
  • Supply Voltage Range; 2.7V to 5.5 V

All trademarks are the property of their respective owners.

Part number立即下单Audio input typeArchitectureSpeaker channels(Max)Power stage supply(Min)(V)Power stage supply(Max)(V)Output power(W)Load(Min)(ohms)THD + N @ 1 kHz(%)Iq(Typ)(mA)Control interfaceClosed/open loopAnalog supply(Min)(V)Analog supply(Max)(V)PSRR(dB)Operating temperature range(C)Rating
LM4875立即下单Analog Input  Class-AB  Mono  2.7  5.5  1  8  0.6  4  Hardware  Closed  2.7  5.5  50  -40 to 85  Catalog  

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