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TPA3112D1 - 产品图解：
TPA3112D1-具有 SpeakerGuard? 的 25W 单声道滤波器 D 类音频放大器 (TPA3112)
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TI产品 - TPA3112D1介绍

TPA3112D1 - 具有 SpeakerGuard? 的 25W 单声道无滤波器 D 类音频放大器 (TPA3112)

TPA3112D1是TI德州仪器公司的一款无产品，TPA3112D1是具有 SpeakerGuard? 的 25W 单声道无滤波器 D 类音频放大器 (TPA3112)，本站介绍了TPA3112D1的封装应用图解、特点和优点、功能等，并给出了与TPA3112D1相关的TI元器件型号供参考。

TPA3112D1 - 具有 SpeakerGuard? 的 25W 单声道无滤波器 D 类音频放大器 (TPA3112) - 无 - 中/高功率D类放大器 - 德州仪器

产品描述

The TPA3112D1 is a 25-W efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard™ speaker protection system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a "virtual" voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.

The TPA3112D1 can drive a mono speaker as low as 4?. The high efficiency of the TPA3112D1, > 90%, eliminates the need for an external heat sink when playing music.

The outputs are fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.

产品特性

  • 25-W into an 8-? Load at < 0.1% THD+N From a 24-V Supply
  • 20-W into an 4-? Load at 10% THD+N From a 12-V Supply
  • 94% Efficient Class-D Operation into 8-? Load Eliminates Need for Heat Sinks
  • Wide Supply Voltage Range Allows Operation from 8 to 26 V
  • Filter-Free Operation
  • SpeakerGuard Speaker Protection Includes Adjustable Power Limiter plus DC Protection
  • Flow Through Pin Out Facilitates Easy Board Layout
  • Robust Pin-to-Pin Short Circuit Protection and Thermal Protection with Auto-Recovery Option
  • Excellent THD+N/ Pop Free Performance
  • Four Selectable, Fixed Gain Settings
  • Differential Inputs

SpeakerGuard Is a trademark of Texas Instruments

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