LM4875 Series

750-mW, stereo, analog input, Class-AB audio amplifier w/precision DC volume control & headphone amp

Catalog

750-mW, stereo, analog input, Class-AB audio amplifier w/precision DC volume control & headphone amp

Part	Output Type	Package / Case	Package / Case [y]	Package / Case [x]	Type	Mounting Type	Supplier Device Package	Max Output Power x Channels @ Load	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Features	Package / Case [custom]	Package / Case
Texas Instruments LM4875MX/NOPB	1-Channel (Mono) with Mono Headphones	8-SOIC	3.9 mm	0.154 in	Class AB	Surface Mount	8-SOIC	1 W 110 mW	85 °C	-40 °C	2.7 V	5.5 V	Depop Mute Shutdown Thermal Protection Volume Control
Texas Instruments LM4875MM/NOPB	1-Channel (Mono) with Mono Headphones	8-MSOP 8-TSSOP			Class AB	Surface Mount		1 W 110 mW	85 °C	-40 °C	2.7 V	5.5 V	Depop Mute Shutdown Thermal Protection Volume Control	0.118 in	3 mm

Catalog

750-mW, stereo, analog input, Class-AB audio amplifier w/precision DC volume control & headphone amp

Key Features

• Precision DC Voltage Volume ControlHeadphone Amplifier Mode"Click and Pop" SuppressionShutdown Control When Volume Control Pin Is LowThermal Shutdown ProtectionKey SpecificationsPOat 1.0% THD+N Into 8Ω; 750 mW (typ)POat 10% THD+N Into 8Ω; 1 W (typ)Shutdown Current; 0.7µA(typ)Supply Voltage Range; 2.7V to 5.5 VAll trademarks are the property of their respective owners.Precision DC Voltage Volume ControlHeadphone Amplifier Mode"Click and Pop" SuppressionShutdown Control When Volume Control Pin Is LowThermal Shutdown ProtectionKey SpecificationsPOat 1.0% THD+N Into 8Ω; 750 mW (typ)POat 10% THD+N Into 8Ω; 1 W (typ)Shutdown Current; 0.7µA(typ)Supply Voltage Range; 2.7V to 5.5 VAll trademarks are the property of their respective owners.

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 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/SDpin. 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. 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/SDpin. 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.