LM4865 Series

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

Catalog

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

Part	Type	Max Output Power x Channels @ Load	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [custom]	Package / Case	Features	Output Type	Mounting Type	Package / Case [y]	Package / Case [x]	Supplier Device Package
Texas Instruments LM4865MMX	Class AB	1 W 110 mW	2.7 V	5.5 V	85 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	Depop Mute Shutdown Thermal Protection Volume Control	1-Channel (Mono) with Mono Headphones	Surface Mount
Texas Instruments LM4865MMX/NOPB	Class AB	1 W 110 mW	2.7 V	5.5 V	85 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	Depop Mute Shutdown Thermal Protection Volume Control	1-Channel (Mono) with Mono Headphones	Surface Mount
Texas Instruments LM4865M/NOPB	Class AB	1 W 110 mW	2.7 V	5.5 V	85 °C	-40 °C	8-SOIC			Depop Mute Shutdown Thermal Protection Volume Control	1-Channel (Mono) with Mono Headphones	Surface Mount	3.9 mm	0.154 in	8-SOIC

Catalog

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

Key Features

• 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 SOIC, Micro SMD 750 mW (typ)POat 10% THD+N Into 8Ω SOIC, Micro SMD 1W (typ)Shutdown Current 0.7µA(typ)Supply Voltage Range 2.7V to 5.5 VAll trademarks are the property of their respective owners.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 SOIC, Micro SMD 750 mW (typ)POat 10% THD+N Into 8Ω SOIC, Micro SMD 1W (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 LM4865 is a mono bridged audio power amplifier with DC voltage volume control. The LM4865 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 LM4865'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 LM4865 is a mono bridged audio power amplifier with DC voltage volume control. The LM4865 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 LM4865'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.