TDA7498

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Class D
Output Type:	2-Channel (Stereo)
Max Output Power x Channels @ Load:	100W x 2 @ 6 Ohm
Voltage - Supply:	14 V ~ 39 V
Features:	Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	PowerSSO-36 EPU
Package / Case:	36-PowerFSOP (0.295", 7.50mm Width)
Base Part Number:	TDA7498

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Power amplifiers are an important part of audio systems, and the TDA7498 is one of the most common power amplifiers used in the audio field. This device is a mono audio amplifier capable of delivering up to 150W of output power into a 4 ohm load with a supply voltage of 24V DC. It is also equipped with a thermal overload protection circuit and two pairs of differential inputs.The TDA7498 is frequently used in audio applications such as amplifying a subwoofer or mid-range speaker. It is also used in guitar amplifiers and active speakers. It has high power efficiency, excellent reliability, and small size, making it an ideal choice for many applications.The working principle of the TDA7498 is based on the Class-D amplifier topology. This type of amplifier uses switching technology to reduce power dissipation and thus maximize efficiency. It applies a pulse width modulation (PWM) signal to control the flow of current to the output.In the most basic terms, the TDA7498 is a voltage amplifier. It takes in an input voltage which is processed by the amplifier and then outputs an amplified voltage. To understand this better, let us look at the various components of the amplifier.The TDA7498 has several input stages which process the incoming signal. These stages include the differential amplifier, the low pass filter, the power stage, and the oscillator. The differential amplifier amplifies any differential voltage and helps reduce noise that is present in the signal.The low pass filter acts as a frequency separator, allowing only low frequencies to pass through. The power stage increases the power of the signal to make it sufficiently high for the output. Finally, the oscillator modulates the signal that is outputted by the power stage, making it possibly for efficient switching and power delivery. The output in the TDA7498 is then regulated by control signals that are sent to the switching transistors. The switching transistors are constantly triggered on and off in order to control how much power is delivered to the output. This ensures that the amplified signal gets the desired power without any distortion or clipping.The working principle of the TDA7498 is simple yet efficient, making it an ideal choice for a variety of audio applications. It provides a high efficiency and reliable performance, making it a popular option for audio systems.The TDA7498 is a versatile part that can be used in a variety of applications. In audio applications, it can be used to power speakers or amplifiers. It can also be used in guitar amplifiers and active speakers. Additionally, it is frequently used in applications such as TVs, soundbars, sound systems and other consumer electronics.To conclude, the TDA7498 is a versatile power amplifier that can be used in a variety of audio applications. It is based on the Class-D amplifier topology and is equipped with various input stages to process the incoming signals. It has a high power efficiency and excellent reliability, making it an ideal choice for many audio systems.

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