TDA7575BPDTR

Overview

The TDA7575BPDTR is a Class-AB dual-bridge audio amplifier manufactured by STMicroelectronics, designed for automotive applications. It delivers up to 150 W into a 1 Ω load or 75 W per channel into a 2 Ω load at 14.4 V with 10% THD. The device operates on a single power supply ranging from 8 V to 18 V and features differential inputs with a fixed gain of 26 dB. Key electrical parameters include an output current of 8 A, total harmonic distortion plus noise of 0.15%, and an input offset voltage of 45 mV. It is housed in a PowerSSO-36 package and supports operation temperatures from -55°C to +150°C.

Feature Summary

• Integrates full digital diagnostic capabilities via I2C bus for monitoring speaker status and fault conditions.
• Features high-efficiency DMOS output stage technology to reduce thermal dissipation compared to conventional Class-AB solutions.
• Supports driving loads down to 1 Ω by paralleling outputs into a single channel configuration.

Applications

• Automotive radio systems requiring high-power audio amplification
• Car infotainment systems utilizing I2C-based diagnostics
• Vehicle sound systems needing efficient thermal management

Procurement Notes

Verify the specific suffix 'PDTR' indicates tape-and-reel packaging when sourcing components. Confirm that the I2C address configuration matches system requirements, as the device supports four distinct addresses. Ensure design accounts for the specified operating temperature range and humidity sensitivity level during assembly processes.

Selection Notes

Select this component for designs requiring high output power in a compact form factor with integrated diagnostic feedback. The fixed 26 dB gain simplifies external circuitry by eliminating the need for external compensation networks. Consider the PowerSSO-36 package constraints for PCB layout and thermal dissipation strategies in enclosed automotive environments.

Part Context

This part belongs to the TDA7575B series of MOSFET dual bridge amplifiers. It utilizes Multipower BCD technology and is specifically engineered for car radio applications. The series emphasizes superior efficiency and low distortion, making it suitable for modern vehicle audio architectures demanding both performance and reliability.

Replacement Considerations

The TDA7575BPD is the tube-packaged equivalent of this reel-mounted component. Verify pinout compatibility if substituting between packaging types. No other direct functional substitutes are confirmed in the provided documentation.