LM4861 - Boomer 系列：具有关断模式的 1.1W 音频放大器

LM4861是TI德州仪器公司的一款扬声器放大器（AB类/D类）产品，LM4861是Boomer 系列：具有关断模式的 1.1W 音频放大器，本站介绍了LM4861的封装应用图解、特点和优点、功能等，并给出了与LM4861相关的TI元器件型号供参考。

LM4861 - Boomer 系列：具有关断模式的 1.1W 音频放大器 - 扬声器放大器（AB类/D类） - 低功耗放大器 - 德州仪器

产品描述

The LM4861 is a bridge-connected audio power amplifier capable of delivering 1.1W of continuous average power to an 8Ω load with 1% THD+N using 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 LM4861 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optimally suited for low-power portable systems.

The LM4861 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4861 can be configured by external gain-setting resistors for differential gains of up to 10 without the use of external compensation components. Higher gains may be achieved with suitable compensation.

产品特性

No output coupling capacitors, bootstrap capacitors, or snubber circuits are necessary
Small Outline (SOIC) packaging
Compatible with PC power supplies
Thermal shutdown protection circuitry
Unity-gain stable
External gain configuration capability

Key Specifications

THD+N for 1kHz at 1W continuous average output power into 8? 1.0% (max)
Output power at 10% THD+N at 1kHz into 8? 1.5 W (typ)
Shutdown Current 0.6µA (typ)

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