TDA7379

Overview

The TDA7379 is a dual bridge power amplifier designed for automotive audio applications. It delivers high output power with low harmonic distortion and minimal external components. The device integrates protection circuits including thermal shutdown, short-circuit protection, and under-voltage lockout. It operates from a single DC supply voltage, simplifying installation in vehicle electrical systems. The amplifier supports various speaker configurations through its bridgeable channel architecture.

Feature Summary

• Integrated dual bridge amplifier topology for flexible speaker driving
• Built-in thermal and short-circuit protection mechanisms
• Single-supply operation reducing system complexity
• Low quiescent current consumption for battery efficiency

Applications

• Automotive door speaker amplification
• Car audio center console installations
• Vehicle rear deck speaker driving
• Factory-installed car radio systems

Procurement Notes

Verify the exact ordering code suffix to confirm package type and temperature range. Confirm RoHS compliance status for specific production batches. Check datasheet revision history for any pinout or parameter updates before integration into new designs.

Selection Notes

Evaluate thermal dissipation requirements based on ambient cabin temperatures and enclosure constraints. Ensure supply voltage stability matches the amplifier's operating range. Consider PCB layout guidelines for optimal heat spreading and signal integrity during implementation.

Part Context

This component belongs to STMicroelectronics' automotive audio amplifier family. It complements other multi-channel solutions by offering a compact dual-bridge option. The series targets cost-sensitive mass-market vehicle infotainment systems requiring reliable performance.

Replacement Considerations

Direct substitutes include the TDA7388 for higher power applications. Verify pin compatibility and thermal characteristics when cross-referencing with legacy ST parts or competitor equivalents.