TPA6139A2RGTT Integrated Circuits (ICs)

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The TPA6139A2RGTT is a two-channel Class AB audio-power amplifier with two fully differential inputs, capable of driving up to 2x200 W (Kg) at 8 Ω (1W). Its tiny size and low power consumption make it perfect for portable audio applications. It is suitable for both mono and stereo applications. The TPA6139A2RGTT is a type of linear amplifier, specifically for the audio signal amplification, and it can reduce the size, complexity and cost of the entire audio system.

The TPA6139A2RGTT can be divided into three sections: a differential input stage, a single-ended output stage, and a power supply. The input stage consists of two non-inverting amplifier stages, the output stage consists of two load switches and two Class AB output stages. The power supply consists of two independent voltage regulators, one for each channel.The amplifier has an adjustable gain of up to 48 dB, making it suitable for a wide range of applications, from low-level line amplifiers to high-power audio amplifiers. The amplifier is capable of 1 dB of channel-to-channel gain tracking and has a 1 dB channel-to-channel phase accuracy. It can be used for both mono and stereo applications, and is capable of providing an output of up to 200 W (Kg) at 8 Ω (1W). The amplifier has a wide operating voltage range from 8 V to 28 V, making it suitable for a wide range of audio application.

The TPA6139A2RGTT uses a differential input architecture, which results in improved signal-to-noise ratio and common-mode noise rejection. The differential amplifier stages provide high input impedance, low input capacitance, and thus wide and flat frequency response, as well as high output current capability. The load switches provide excellent load-driving capability and high output impedance, thus eliminating the need for additional output stages. The output stages employ Class AB technology to provide high power with low distortion. The two independent voltage regulators provide a stable power supply and are able to reduce noise interference.

The TPA6139A2RGTT has integrated protection functions. It includes thermal protection, under-voltage lockout protection, turn-on delay, over-current shutdown, and short-circuit protection. The thermal protection ensures that the amplifier does not suffer from excessive heat, while the under-voltage lockout protection prevents it from operating at lower voltages than its rated voltage range. The turn-on delay prevents any increase in distortion when the amplifier is first switched on, and the over-current shutdown and short-circuit protection help to protect the amplifier from any damage due to excessive current.

Overall, the TPA6139A2RGTT is an ideal solution for any audio-power amplifier application. It provides excellent performance in terms of power efficiency and sound quality, while its integrated protection functions ensure that the amplifier is safe and reliable. Its wide operating voltage range and small size allow it to be used in a wide variety of applications, from low-level line amplifiers to high-power audio amplifiers.

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