LM4881 Series

200-mW, stereo, analog input, headphone amplifier

Catalog

200-mW, stereo, analog input, headphone amplifier

Part	Features	Operating Temperature [Max]	Operating Temperature [Min]	Max Output Power x Channels @ Load	Mounting Type	Output Type	Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Package / Case [y]	Package / Case [x]	Supplier Device Package	Package / Case [custom]	Package / Case
Texas Instruments LM4881M/NOPB	Shutdown Thermal Protection	85 °C	-40 °C	2 channels 8 Ohm 300 mW	Surface Mount	Headphones 2-Channel (Stereo)	Class AB	2.7 V	5.5 V	8-SOIC	3.9 mm	0.154 in	8-SOIC
Texas Instruments LM4881MMX/NOPB	Shutdown Thermal Protection	85 °C	-40 °C	2 channels 8 Ohm 300 mW	Surface Mount	Headphones 2-Channel (Stereo)	Class AB	2.7 V	5.5 V	8-MSOP 8-TSSOP				0.118 in	3 mm
Texas Instruments LM4881MX/NOPB	Shutdown Thermal Protection	85 °C	-40 °C	2 channels 8 Ohm 300 mW	Surface Mount	Headphones 2-Channel (Stereo)	Class AB	2.7 V	5.5 V	8-SOIC	3.9 mm	0.154 in	8-SOIC

Catalog

200-mW, stereo, analog input, headphone amplifier

Key Features

• VSSOP Surface Mount PackagingUnity-gain StableExternal Gain Configuration CapabilityThermal Shutdown Protection CircuitryNo Bootstrap Capacitors, or Snubber Circuits are NecessaryKey SpecificationsTHD+N at 1kHz at 125mW Continuous Average Output Power into 8Ω 0.1% (max)THD+N at 1kHz at 75mW Continuous0.02% (typ)Output Power at 10% THD+N at 1kHz into 8Ω 300 mW (typ)Shutdown Current 0.7µA (typ)Supply Voltage Range 2.7V to 5.5 VAll trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.VSSOP Surface Mount PackagingUnity-gain StableExternal Gain Configuration CapabilityThermal Shutdown Protection CircuitryNo Bootstrap Capacitors, or Snubber Circuits are NecessaryKey SpecificationsTHD+N at 1kHz at 125mW Continuous Average Output Power into 8Ω 0.1% (max)THD+N at 1kHz at 75mW Continuous0.02% (typ)Output Power at 10% THD+N at 1kHz into 8Ω 300 mW (typ)Shutdown Current 0.7µA (typ)Supply Voltage Range 2.7V to 5.5 VAll trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

Description

The LM4881 is a dual audio power amplifier capable of delivering 200mW of continuous average power into an 8Ω load with 0.1% THD+N from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4881 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The LM4881 features an externally controlled, low power consumption shutdown mode which is virtually clickless and popless, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4881 can be configured by external gain-setting resistors. The LM4881 is a dual audio power amplifier capable of delivering 200mW of continuous average power into an 8Ω load with 0.1% THD+N from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4881 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The LM4881 features an externally controlled, low power consumption shutdown mode which is virtually clickless and popless, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4881 can be configured by external gain-setting resistors.