Specification	LM4871M

Features	Shutdown, Thermal Protection
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	1-Channel (Mono)
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Type	Class AB
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V

LM4871 Series

Part	Type	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Output Type	Package / Case	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Features	Mounting Type	Package / Case [custom]	Package / Case
Texas Instruments LM4871M/NOPB	Class AB	8-SOIC	5.5 V	2 V	1-Channel (Mono)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount
Texas Instruments LM4871M	Class AB	8-SOIC	5.5 V	2 V	1-Channel (Mono)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount
Texas Instruments LM4871LDX/NOPB	Class AB	8-WSON (4x4)	5.5 V	2 V	1-Channel (Mono)	8-WDFN Exposed Pad			85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount
Texas Instruments LM4871MX	Class AB	8-SOIC	5.5 V	2 V	1-Channel (Mono)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount
Texas Instruments LM4871LD/NOPB	Class AB	8-WSON (4x4)	5.5 V	2 V	1-Channel (Mono)	8-WDFN Exposed Pad			85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount
Texas Instruments LM4871MMX/NOPB	Class AB		5.5 V	2 V	1-Channel (Mono)	8-MSOP 8-TSSOP			85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount	0.118 in	3 mm
Texas Instruments LM4871LD	Class AB	8-WSON (4x4)	5.5 V	2 V	1-Channel (Mono)	8-WDFN Exposed Pad			85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount
Texas Instruments LM4871MM	Class AB		5.5 V	2 V	1-Channel (Mono)	8-MSOP 8-TSSOP			85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount	0.118 in	3 mm
Texas Instruments LM4871MX/NOPB	Class AB	8-SOIC	5.5 V	2 V	1-Channel (Mono)	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	Shutdown Thermal Protection	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 2.14
		10	$ 1.92
		95	$ 1.54
		285	$ 1.45
		570	$ 1.27
		1045	$ 1.05
		2565	$ 0.98
		5035	$ 0.94
Texas Instruments	TUBE	1	$ 1.77
		100	$ 1.36
		250	$ 1.00
		1000	$ 0.72

Description

General part information

LM4871 Series

The LM4871 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply (see Note). To conserve power in portable applications, the LM4871's micropower shutdown mode (IQ= 0.6µA, typ) is activated when VDDis applied to the SHUTDOWN pin.

Boomer audio power amplifiers are designed specifically to provide high power, high fidelity audio output. They require few external components and operate on low supply voltages from 2.0V to 5.5V. Since the LM4871 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is ideally suited for low-power portable systems that require minimum volume and weight.

Additional LM4871 features include thermal shutdown protection, unity-gain stability, and external gain set.

Documents

Technical documentation and resources

LM4871 3W Audio Power Amplifier with Shutdown Mode datasheet (Rev. F)

Data sheet