TDA1517ATW/N1,118

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Class B
Output Type:	1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power x Channels @ Load:	8W x 1 @ 8 Ohm; 4W x 2 @ 4 Ohm
Voltage - Supply:	6 V ~ 18 V
Features:	Depop, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	20-HTSSOP
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Base Part Number:	TDA1517

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<%## This article divides into three parts: Introduction, Application Field and Working Principle. ##%>

Introduction

The TDA1517ATW/N1,118, developed by Philips Semiconductor, is an audio amplifier that can provide high quality sound with low power consumption. It is a monolithic integrated circuit, with high linearity and wide frequency range. It has an audio frequency range of 10-100 kHz, and a signal-to-noise ratio of 77 dB. It is equipped with a power-on/ soft mute control circuit, which provides a soft-start control for quick sound reproduction with no popping noise. It provides a high quiescent current for better sound reproduction, and is suitable for audio applications in automotive and industrial systems.

Application Field

The TDA1517ATW/N1,118 is mainly used in automotive and industrial applications, where it helps in providing high quality sound with less power consumption. It can be used in automotive car audio systems, radio receivers, digital audio amplifiers, multimedia systems, and even home sound systems. It is also used in industrial sound systems such as PA systems, public address systems, and intercoms. It can be used in audio amplifiers that require high linearity and a wide frequency range.

Working Principle

The TDA1517ATW/N1,118 is a Class AB audio amplifier. It uses two different transistors: a PNP power transistor and a NPN current regulator. The PNP power transistor is connected in the collector circuit of the amplifier, and is responsible for the power amplification of the signal. The NPN current regulator is responsible for maintaining a constant current in the collector circuit, regardless of the gain of the amplifier. This helps in providing better sound quality and reduces distortion.The amplifier also includes two capacitors for frequency control, and two resistors for gain control. It is powered by a direct-current voltage source, typically between 8 V and 18 V. The TDA1517ATW/N1,118 also features a power-on/ soft mute control circuit, which provides quick and clean start-up without any popping noise. The TDA1517ATW/N1,118 is a very efficient audio amplifier, with a high Signal-to-Noise Ratio of 77 dB and a wide audio frequency range of 10-100 kHz. It is suitable for audio amplifiers that require high linearity and a wide frequency range, as well as applications that have power-thrust requirements.

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