TPA112DGN

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Introduction

TPA112DGN is a versatile, high-performance audio amplifier integrated circuit (IC) designed for a wide range of applications, from commercial sound systems to consumer audio equipment. Featuring power efficiency, low power consumption and wide dynamic range, it is the perfect choice for various audio applications demanding superior sound quality and high performance.

Application Field

TPA112DGN offers an excellent choice for audio application designs needing low distortion and power efficiency. With a wide bandwidth of 50kHz to 6MHz, it can be used in a variety of applications, including professional audio systems, digital music players, sound reinforcement systems, multimedia speakers, headsets, sound bars and AV receivers.

The chip provides low distortion and power-efficient audio amplification when driving 4 or 8-ohm speakers. It can also be used to drive 18-ohm headphone speakers and up to 16 kiloohm headphones as well. In addition, it provides stereo or mono operation and a maximum output power of 2-5 watts per channel.

TPA112DGN offers a low current consumption rate of only 30 mA during normal operation. This makes the amplifier circuit highly energy efficient and ideal for use in applications that require low power consumption.

Working Principle

TPA112DGN employs a low-noise, high-speed audio amplifier operating in Class A or AB. The amplifier circuit uses a maximum supply voltage of +25 volts with a maximum output of 3 watts, making it suitable for a wide range of professional audio applications.

The amplifier circuit also features a low-power, high-linearity high-performance feedback path, making it suitable for low-distortion applications. The feedback path eliminates distortion to achieve sound quality comparable to professional amlifiers. The circuit also incorporates high-performance op-amps and can drive up to 16 kiloohm headphone speakers.

The TPA112DGN amplifier circuit also features a wide operating temperature range of -20 to +70°C. This makes it suitable for applications operating in extreme temperatures. The circuit is also compliant with the RoHS Directive and is tested to CSA and UL standards.

TPA112DGN also features closed-loop control, which provides improved sound quality and stability. The feedback loop ensures the amplifier provides the ideal gain and output impedance, resulting in high-quality audio performance. It also utilizes advanced soft-start technology to protect the system from transient inrush currents.

Finally, the amplifier IC also provides thermal and short-circuit protection with automatic shut-off. This protects the amplifier IC’s components and circuitry against damage caused by an overload.

Conclusion

TPA112DGN is an ideal audio amplifier IC for a wide range of applications. It offers excellent performance, low power consumption, wide dynamic range and low distortion. With advanced features such as feedback loop control, thermal and short-circuit protection and soft-start technology, it is the perfect choice for professional audio applications.

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