TPA4861 - 1W 单声道音频功率放大器

TPA4861是TI德州仪器公司的一款扬声器放大器（AB类/D类）产品，TPA4861是1W 单声道音频功率放大器，本站介绍了TPA4861的封装应用图解、特点和优点、功能等，并给出了与TPA4861相关的TI元器件型号供参考。

TPA4861 - 1W 单声道音频功率放大器 - 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 TPA4861 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average power into an 8- load at 0.2% THD+N from a 5-V power supply in voiceband frequencies (f < 5 kHz). A BTL configuration eliminates the need for external coupling capacitors on the output in most applications. Gain is externally configured by means of two resistors and does not require compensation for settings of 2 to 20. Features of the amplifier are a shutdown function for power-sensitive applications as well as internal thermal and short-circuit protection. The TPA4861 works seamlessly with TI’s TPA4860 in stereo applications. The amplifier is available in an 8-pin SOIC surface-mount package that reduces board space and facilitates automated assembly.

产品特性

1-W BTL Output (5 V, 0.11 % THD+N)
3.3-V and 5-V Operation
No Output Coupling Capacitors Required
Shutdown Control (IDD = 0.6 µA)
Uncompensated Gains of 2 to 20 (BTL Mode)
Surface-Mount Packaging
Thermal and Short-Circuit Protection
High Supply Ripple Rejection Ratio (56 dB at 1 kHz)
LM4861 Drop-In Compatible

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