TDA7575BPD

Overview

The TDA7575BPD is a Class-AB dual-bridge audio power amplifier from STMicroelectronics, designed for automotive radio 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 supply voltage ranging from 8 V to 18 V and features differential inputs with a fixed gain of 26 dB. It utilizes PowerSSO-36 packaging and supports AEC-Q100 qualification for automotive reliability.

Feature Summary

• Integrates full digital diagnostics via I2C bus for speaker status monitoring
• Features high-efficiency DMOS output stage for reduced thermal management requirements
• Supports driving loads down to 1 Ω by paralleling outputs into a single channel

Applications

• Automotive car radio systems
• High-power audio sets requiring simplified thermal management
• Dual-bridge amplifier configurations in vehicle infotainment

Procurement Notes

Verify the specific suffix 'PD' against the manufacturer's current datasheet to confirm package type and availability status. Ensure design compatibility with the PowerSSO-36 footprint and check for any end-of-life notifications or recommended replacements if the component is discontinued. Confirm I2C address settings and diagnostic pin configurations match the system architecture.

Selection Notes

Select this component for applications requiring high output power with low distortion in a Class-AB topology. The integrated I2C diagnostics simplify system monitoring compared to standard amplifiers. Consider the 8 A output current capability and the ability to drive low impedance loads when sizing the power supply and heat dissipation infrastructure for the target automotive environment.

Part Context

The TDA7575B belongs to STMicroelectronics' family of multifunction dual-bridge power amplifiers intended for car radios. This series emphasizes superior efficiency through exclusive internal structures, reducing dissipated power under average listening conditions by up to 50% compared to conventional solutions. The family supports flexible configuration options including standby, mute, and gain control.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.