TDA7372A

Overview

The TDA7372A is a quad-channel Class AB audio power amplifier in a Multiwatt15 package designed for car radio applications. It delivers 6W minimum per channel into 4Ω loads and 10W typical per channel into 2Ω loads at 14.4V supply with 10% THD. The device operates on an 8V to 18V supply range, features internally fixed gain of 20dB, and includes mute and standby functions compatible with CMOS logic.

Feature Summary

• Fully complementary PNP/NPN output stage providing rail-to-rail voltage swing without bootstrap capacitors
• Integrated protections including AC/DC short circuit detection, soft thermal limiting, load dump handling, and reversed battery protection
• Automatic low-supply self-muting and programmable turn-on delay to eliminate audible pop noises during operation transitions

Applications

• Car radio systems
• Automotive audio amplifiers

Procurement Notes

Verify component obsolescence status before procurement as the TDA7372A is marked obsolete. Confirm that the Multiwatt15 vertical pin configuration matches the target PCB footprint. Ensure design accounts for the specific threshold voltages required for the standby and mute control pins to maintain proper functionality.

Selection Notes

Select this component for designs requiring four independent audio channels within a single integrated circuit. The internal fixed gain reduces external component count by eliminating the need for external compensation or bootstrap capacitors. Verify that the thermal resistance characteristics support the expected power dissipation levels in the final enclosure.

Part Context

This part belongs to the TDA7372 family of automotive audio amplifiers manufactured by STMicroelectronics. It utilizes advanced technology to minimize electrical mismatch between channels while maintaining high power capability. The Multiwatt15 package facilitates efficient heat dissipation for continuous operation in vehicle environments.

Replacement Considerations

No public confirmed substitute part numbers are available.