TDA7293V

Overview

The TDA7293V is a monolithic Class AB audio amplifier IC manufactured by STMicroelectronics, housed in a Multiwatt-15 package. It utilizes Multipower BCD technology and features a DMOS power stage capable of delivering high output power into low impedance loads. The device supports a wide operating voltage range from ±12V to ±50V. Key electrical specifications include a maximum supply voltage of ±60V, an output current capability of 10A, and a typical static current of 50mA. It provides 100W output power into an 8Ω load at ±40V with 10% THD.

Feature Summary

• Integrated muting function with turn-on delay to eliminate switching noises during remote operation.
• Built-in thermal shutdown and short-circuit protection mechanisms for enhanced reliability.
• Supports parallel connection via Pin 11 to drive very low impedance loads and optimize thermal dissipation.
• Features a clip detector and differential inputs for improved signal integrity.

Applications

• High-fidelity home stereo systems
• Self-powered loudspeakers
• Top-class television sets

Procurement Notes

Verify the specific package variant (Multiwatt-15V or Multiwatt-15H) against design requirements. Confirm that the application circuit includes necessary external components such as bootstrap capacitors and Boucherot cells if operating under low voltage conditions. Ensure proper thermal management is implemented due to the high power dissipation capabilities of the device.

Selection Notes

Select this component for applications requiring high voltage tolerance and robust protection features in a single-channel configuration. The DMOS technology offers advantages in linearity and temperature coefficients compared to bipolar outputs. Consider the Multiwatt-15 package constraints for PCB layout and heat sinking requirements when integrating into the final system design.

Part Context

The TDA7293 series represents a family of high-power audio amplifiers designed for Hi-Fi applications. The TDA7293V specifically denotes the Multiwatt-15V package version. It shares functional similarities with the TDA7294 but differs in maximum operating voltage ranges and specific internal circuit optimizations. Both are part of ST's legacy high-performance audio amplifier lineup.

Replacement Considerations

The TDA7294 is a related device within the same family. Verify compatibility regarding voltage ranges and pin configurations before substitution. Ensure that any replacement maintains the required output power and protection features for the specific application environment.