TDA7297 Pinout, Equivalent, Application, Datasheet

The TDA7297 is a compact and efficient dual-bridge audio amplifier IC designed for low-distortion stereo audio applications. It delivers clean output power using a single supply, making it ideal for multimedia speakers, TV audio systems, and portable amplifiers. Before using the device in audio circuits, it is important to understand the TDA7297 pinout and internal configuration for proper system integration.

tda7297 datasheet pinout equivalent specification application — TDA7297 Datasheet

Introduction

The TDA7297 is a Class-AB dual BTL (Bridge-Tied Load) audio amplifier that operates from a single power supply up to 20V. Its internal design provides stable, low-noise, and low-distortion amplification suitable for high-quality stereo systems. With up to 15W + 15W output (typical with 12–18V supply), the IC is widely used in compact speaker systems and DIY audio amplifier boards.

tda7297 pinout datasheet equivalent specification pin configuration — TDA7297 IC

Pin Configuration / Pinout of TDA7297 Power Amplifier IC

Understanding the TDA7297 Pinout Configuration

The TDA7297 is typically available in the Multiwatt-15 package.

Pin#	Pin Name
1	OUT1+
2	OUT1-
3	Vcc
4	IN1
5	N.C.
6	MUTE
7	ST-BY
8	PW-GND
9	S-GND
10	N.C.
11	N.C.
12	IN2
13	VCC
14	OUT2-
15	OUT2+

TDA7297 Pin Configuration Table

Note: DATASHEET DOWNLOAD button is provided end of this article.

TDA7297 Key Features

Dual BTL audio amplifier channels
Low-noise and low-distortion output
Operates on a single power supply
Built-in mute and standby functions
Thermal and short-circuit protection
Ideal for compact stereo amplifier designs
Requires minimal external components

TDA7297 Specifications/Characteristics

Supply Voltage (Vs): Up to 20V
Total Power Dissipation (Ptot): 33W
Storage Temperature (Tstg): –40°C to +150°C
Operating Junction Temperature (TJ): Up to +150°C
Output Type: Dual BTL
Output Power: ~15W per channel (typical, depends on supply & load)
Amplifier Class: AB
Package Type: Multiwatt-15
Control Functions: Mute, Standby
Built-in protection: Thermal shutdown, short-circuit limiting

Key Applications of TDA7297 Power Amplifier IC

Stereo audio amplifier systems
PC and laptop speaker sets
Small home audio systems
Portable amplifier modules
Television and monitor audio output
DIY audio amplifier projects

TDA7297 Equivalent ICs / Alternatives

(Verify pin compatibility before using substitutions)

TDA7266
TDA7265
TDA2030 (similar power class)
TDA1517
PAM8403 (low-power Class-D alternative)
TDA2005 (car audio alternative)

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**Variable Power Supply 0-30V_10A Circuit Diagram**

Stereo Amplifier TDA7297 Dual-Bridge Circuit Diagram — **Variable Power Supply 0-30V_10A Circuit Diagram**

Working Principle of TDA7297

The TDA7297 operates using two independent BTL amplifier stages, eliminating output capacitors and providing greater power efficiency. In BTL configuration, each speaker load is driven by two amplifier outputs working in opposite phases, doubling the voltage swing and delivering higher output power from low supply voltages. The IC amplifies small audio input signals while maintaining low distortion, and uses internal logic for stable mute/standby operation to remove switching noise and power-on pops.

Frequently Asked Questions (FAQ)

Q1: What is the typical output power of the TDA7297?
Around 15W per channel depending on supply voltage and speaker load.

Q2: Does the TDA7297 require a heat sink?
Yes, especially at higher volume levels.

Q3: Can it run from a single-supply adapter?
Yes, it is designed for single-supply operation.

Q4: What speaker impedance works best?
4Ω and 8Ω speakers are commonly supported.

Conclusion

The TDA7297 is a reliable and efficient dual-bridge audio amplifier IC widely used in compact stereo audio systems. Its low-distortion output, built-in protection circuits, and simple single-supply operation make it ideal for DIY amplifiers, multimedia speakers, and consumer audio applications. With minimal external components and high audio clarity, it remains one of the most popular choices for small yet powerful audio amplifier designs.

Datasheet of TDA7297 Power Amplifier IC

Click the following Button below to download the datasheet of TDA7297 :

Download Datasheet

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