TDA7576B

Overview

The TDA7576B is a dual bridge MOSFET power amplifier designed for 24 V automotive systems. It delivers 2 x 20 W into 4 Ω loads at 24 V and 1 kHz with 10% THD. The device utilizes Multipower BCD technology and features a fully complementary P-channel/N-channel output structure for rail-to-rail swing. Integrated protections include load dump tolerance, thermal shutdown, and short circuit detection.

Feature Summary

• Dual bridge architecture optimized for 24 V truck and bus applications
• MOSFET output stage enabling high efficiency and minimal external components
• Integrated diagnostic capabilities including clipping and DC offset detection

Applications

• Heavy-duty vehicle audio systems
• Commercial transport infotainment
• 24 V automotive radio amplification

Procurement Notes

Verify the current lifecycle status as the component may be marked Not Recommended for New Designs. Confirm package availability and datasheet revisions directly with STMicroelectronics or authorized distributors before finalizing designs.

Selection Notes

Select this amplifier specifically for 24 V supply environments requiring robust MOSFET performance. Ensure compatibility with I2C diagnostics if digital control is required. Verify thermal management requirements based on the specific mounting configuration and ambient conditions.

Part Context

Part of STMicroelectronics' automotive audio portfolio utilizing Multipower BCD technology. Designed to replace older bipolar solutions in heavy-duty vehicles, offering improved efficiency and integrated protection against automotive electrical transients.

Replacement Considerations

Check for updated STMicroelectronics automotive audio amplifiers with similar power ratings and 24 V compatibility. Verify pinout and feature parity before substituting.