IC AMP CLASS AB MONO 3W 8SOIC Hello guys. The LM4871 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3? load with less than 10% THD when powered by a 5V power supply.
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Sep 25, 2021
Sid Marion
How to Make Audio amplifier at home LM4871 Board
IC AMP CLASS AB MONO 3W 8SOIC
Hello guys. 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. This article mainly introduces circuit, pinout, datasheet and other detailed information about Texas Instruments LM4871.
LM4871M/NOPB
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.55153 | $1.55 |
| 10+ | $1.46371 | $14.64 |
| 100+ | $1.38086 | $138.09 |
| 500+ | $1.3027 | $651.35 |
| 1000+ | $1.22896 | $1228.96 |
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. To conserve power in portable applications, the LM4871’s micropower shutdown mode (IQ =0.6µA, typ) is activated when VDD is 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.
Pinout
Symbol
Footprint
3D Model
● No output coupling capacitors, bootstrap capacitors, or snubber circuits are required.
● Unity-gain stable.
● LLP, MSOP, SO, or DIP packaging.
● External gain configuration capability.
● Pin compatible with the LM4861.
Texas Instruments LM4871M/NOPB technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM4871M/NOPB.
Texas Instruments LM4871M/NOPB technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM4871M/NOPB.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 1 day ago) | |
| Factory Lead Time | 6 Weeks | |
| Contact Plating | Tin | |
| Mount | Surface Mount | |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) | |
| Number of Pins | 8Pins | |
| Operating Temperature | -40°C~85°C TA | |
| Packaging | Tube | |
| Series | Boomer® | |
| JESD-609 Code | e3 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Termination | SMD/SMT | |
| ECCN Code | EAR99 |
| Product Attribute | Attribute Value | |
|---|---|---|
| Type | Class AB | |
| Voltage - Supply | 2V~5.5V | |
| Terminal Position | DUAL | |
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | 260 | |
| Number of Functions | 1Function | |
| Base Part Number | LM4871 | |
| Pin Count | 8 | |
| Output Type | 1-Channel (Mono) | |
| Supply Voltage-Max (Vsup) | 5.5V | |
| Supply Voltage-Min (Vsup) | 2V | |
| Number of Channels | 1Channel | |
| Quiescent Current | 6.5mA | |
| Output Power | 3W | |
| Supply Type | Single | |
| Input Offset Voltage (Vos) | 50mV |
| Product Attribute | Attribute Value | |
|---|---|---|
| Power Supply Rejection Ratio (PSRR) | 60dB | |
| Max Output Power | 3W | |
| Max Output Power x Channels @ Load | 3W x 1 @ 3 Ω | |
| Harmonic Distortion | 10% | |
| Number of Amplifiers | 1Amplifier | |
| Load Impedance | 8Ohm | |
| Features | Shutdown, Thermal Protection | |
| Height | 1.75mm | |
| Length | 4.9mm | |
| Width | 3.91mm | |
| Thickness | 1.58mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
Typical Application Circuit
| Part Number | Description | Manufacturer |
| LM4871MDACONSUMER CIRCUITS | 1.5W, 1 CHANNEL, AUDIO AMPLIFIER, UUC, DIE | Texas Instruments |
● Portable Computers
● Desktop Computers
● Low Voltage Audio Systems
Texas Instruments (TI) became a globally recognized semiconductor manufacturer and expanded its business to 35 countries. It has seen rapid growth. In 1958, TIer introduced a working integrated circuit for the first time. Today, TI has more than 30,000 employees worldwide dedicated to designing, manufacturing and selling analog and embedded processing chips. They are eager to solve challenges and change the world through their technology.
Download datasheets and manufacturer documentation for LM4871M/NOPB
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