TPA2028D1YZFT Integrated Circuits (ICs)

Series:	SmartGain™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Class D
Output Type:	1-Channel (Mono)
Max Output Power x Channels @ Load:	3W x 1 @ 4 Ohm
Voltage - Supply:	2.5 V ~ 5.5 V
Features:	AGC, Differential Inputs, DRC, I²C, Short-Circuit and Thermal Protection, Shutdown, Volume Control
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	9-DSBGA
Package / Case:	9-UFBGA, DSBGA
Base Part Number:	TPA2028

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TPA2028D1YZFT Application Field and Working Principle

TPA2028D1YZFT is a Linear audio amplifier designed primarily for automotive applications. This integrated circuit can operate from a supply voltage of 4.5V (or 6V) to 27V and can supply up to 2.2A peak output current. Its gain accuracy is +/- 5% and its integral power supply rejection ratio (PSRR) is around 60dB. This device comes in a compact 4 lead thermal pad package which helps in thermal performance and increases operational temperature range.

Application Field:

TPA2028D1YZFT is mainly utilized in the audio market due to its 2 high performance audio channels. It has been designed purposely for automotive applications and is capable of delivering high output power from a low supply voltage. It can be used either as a short term high wattage amplifier or as a long term lower wattage alternative. This integrated circuit is ideal for amplifying sound for in car audio systems, as well as for other audio applications such as hearing aids, speakers, headsets, etc.

Working Principle:

TPA2028D1YZFT is an analog audio amplifier which amplifies an audio signal to a louder one. The amplifier consists of a PNP Darlington pair which acts as a voltage amplifier, and a MOSFET which acts as power amplifier. The PNP Darlington pair amplifies the incoming signal to a higher voltage while the MOSFET increases the output current. This amplified current is then used to drive a load such as a speaker, headphones or other audio components.The amplifier also has a distortion control feature which can reduce harmonic distortion to a minimum level and 6dB/octave crossover points which help maintain the desired level of bass and treble.The IC also has an on-chip temperature sensor that is used to monitor temperature, and if the temperature inside the IC gets too high, the IC will shut down to protect itself.

Conclusion:

TPA2028D1YZFT is a linear audio amplifier designed for automotive applications. It has an excellent power supply rejection ratio and can provide high output power from a low supply voltage. Its harmonic distortion control, temperature sensor and 6dB/octave crossover points help to keep the audio clean and clear. Its compact and integrated design makes it ideal for amplifying sound for car audio systems and other audio applications.

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