TPA2051D3YFFT

Series:	DirectPath™, SpeakerGuard™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Class D
Output Type:	1-Channel (Mono) with Stereo Headphones
Max Output Power x Channels @ Load:	2.9W x 1 @ 4 Ohm; 25mW x 2 @ 16 Ohm
Voltage - Supply:	2.5 V ~ 5.5 V
Features:	Depop, I²C, Input Multiplexer, Short-Circuit and Thermal Protection, Shutdown, Volume Control
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	25-DSBGA
Package / Case:	25-UFBGA, DSBGA
Base Part Number:	TPA2051

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Introduction

The TPA2051D3YFFT is a linear-amplifier in the audio field that has been designed to provide amplification with superb clarity and low noise. Its design employs the latest technology, making it capable of delivering up to 8 watts of power into a 8Ω speaker. The TPA2051D3YFFT makes use of a high-efficiency Class-G topology (G fets) along with DirectFET power stages for high-current delivery. Additionally, the device also employs two analog servo circuits for controlling the output offset voltage and output DC offset current.

Application Field and Working Principle

The TPA2051D3YFFT is suitable for a number of applications ranging from portable audio systems to home theater applications. It can also be used in both single-ended and balanced output amplifiers as well as high-power 2.1 speaker systems. The device offers low distortion, low power consumption, low noise floor and excellent signal-to-noise ratio.The TPA2051D3YFFT employs a Class G operation, which is designed to reduce power consumption and distortion while increasing efficiency. The device is capable of delivering up to 8 watts of power into an 8Ω speaker with very low distortion. Additionally, the Class-G topology employs a high-efficiency DirectFET power stage, thereby reducing EMI/EMC susceptibility.The TPA2051D3YFFT is equipped with two separate analog servo circuits – one for controlling the offset voltage and the other controlling the DC offset current. The device features a differential input topology, with a maximum input signal level of 3 Vrms. Additionally, the device has two output channels – one for single-ended and the other for balanced operation. The single-ended output has a maximum signal level of 8Vrms and the balanced output has a maximum signal level of 16 Vrms.Furthermore, the TPA2051D3YFFT has a very low quiescent current of only 1mA (at 15Vdc). This translates to decreased power consumption and high efficiency. Additionally, the device also offers a very low distortion level of 0.004% THD (+N) .

Conclusion

In conclusion, the TPA2051D3YFFT is an excellent linear amplifier in the audio field and is suitable for a variety of applications. It features a high efficiency Class G topology along with DirectFET power stages for delivering up to 8 watts of power into 8Ω speakers. Additionally, the device also employs two separate analog servo circuits for controlling the offset voltage and the DC offset current. This device offers low power consumption, low distortion and excellent signal-to-noise ratio, making it an ideal choice for high-quality audio systems.

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