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LM4871MX/NOPB

Name: LM4871MX/NOPB
Rating: 4.7 (12 reviews)

LM4871 BOOMER SERIES: 3W AUDIO A

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製造商。部分 #LM4871MX/NOPB
包 SOIC (D)-8
資料表 LM4871MX/NOPB DataSheet
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規格

Package	Bulk
Series	Boomer®
ProductStatus	Active
Type	Class AB
OutputType	1-Channel (Mono)
MaxOutputPowerxChannels@Load	3W x 1 @ 3Ohm
Voltage-Supply	2V ~ 5.5V
Features	Shutdown, Thermal Protection
MountingType	Surface Mount
OperatingTemperature	-40°C ~ 85°C (TA)
SupplierDevicePackage	8-SOIC

概述

Description

The LM4871MX/NOPB is a low-voltage, dual output audio amplifier designed for consumer audio applications. It operates from a supply voltage of 2.5V to 5.5V and can deliver up to 1W output power into an 8Ω load. The device features an internally fixed gain of 4, which makes it suitable for a variety of audio amplification needs.
Key features include short-circuit protection, thermal shutdown, and minimal external components required for operation. The LM4871 is optimized for low power consumption, making it ideal for battery-operated devices. The package type is typically a thin dual plastic package (TSSOP), facilitating space-efficient designs.
This amplifier is commonly used in mobile phones, portable speakers, and other compact audio systems, providing high-quality sound reproduction while maintaining efficiency. Its ease of integration and robust performance make the LM4871MX/NOPB a popular choice for designers in the audio electronics field.

Features

The LM4871MX/NOPB is a dual bridge amplifier designed for driving speakers in portable audio applications. Key features include:
- Output Power: Delivers 2.2 W per channel into a 4 Ω load with a 5 V supply, providing ample power for small speakers.
- Low Distortion: Utilizes a patented architecture to achieve low total harmonic distortion (THD) and noise levels, enhancing audio quality.
- Integrated Pop-and-Click Suppression: Minimizes audible noise during power-up and shutdown, improving user experience.
- Thermal and Short-Circuit Protection: Built-in features protect the device from overheating and short circuits.
- Wide Supply Voltage Range: Operates from 2.5 V to 5.5 V, making it flexible for different battery-operated designs.
- Small Package: Available in a compact 8-pin MSOP package, suitable for space-constrained applications.
These features make the LM4871MX/NOPB ideal for use in portable devices such as smartphones, tablets, and other consumer electronics.

Package

The LM4871MX/NOPB is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package).

Pinout

The LM4871MX/NOPB is a low-voltage audio power amplifier with a pin count of 8.
Pin Functions:
1. VDD - Power supply input.
2. GND - Ground reference.
3. IN+ - Non-inverting audio input.
4. IN- - Inverting audio input.
5. OUT - Audio output to speaker.
6. NC - No connection (not used).
7. SET - Used to set the gain.
8. SD - Shutdown control pin (active low).
The LM4871MX/NOPB is designed for portable applications and can deliver up to 1 watt of output power into an 8-ohm load, making it suitable for driving speakers in various electronic devices. It features a low quiescent current, making it efficient for battery-operated systems.

Manufacturer

The LM4871MX/NOPB is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company known for designing and manufacturing semiconductors and various integrated circuits. Founded in 1930, TI specializes in analog electronics, embedded processing, and digital signal processing. The company serves a wide range of markets, including automotive, industrial, consumer electronics, and communications. TI is recognized for its innovation in electronic components and systems, providing solutions that enable customers to create advanced electronic products.

Application

The LM4871MX/NOPB is a low-voltage audio power amplifier primarily used in portable electronic devices, such as smartphones, tablets, and laptops. Its application areas include audio amplification in consumer electronics, portable speakers, and multimedia systems. The amplifier is designed to drive small speakers or headphones, providing high output power with low distortion, making it suitable for personal audio applications.

Equivalent

Equivalent products to the LM4871MX/NOPB include the LM4871, LM4870, and LM4863. Other alternatives are the TPA2011D1 from Texas Instruments and the MAX9744 from Maxim Integrated. Always verify specifications to ensure compatibility for your specific application.