TPA4861是TI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，本页介绍了TPA4861的产品说明、应用、特性等，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 - TI公司（Texas Instruments，德州仪器）
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.
- 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
