TDA7575PD

Overview

The TDA7575PD is a dual-bridge Class AB audio power amplifier utilizing Multipower BCD technology and DMOS output stages, designed for automotive radio applications. It operates within an 8V to 18V supply voltage range and delivers up to 2x75W into 2Ω or 1x150W into 1Ω (single channel). The device features differential inputs, selectable voltage gains of 12dB or 26dB, and integrated digital diagnostics via the I²C bus. It includes comprehensive protection mechanisms such as short-circuit detection, thermal shutdown, and DC offset monitoring.

Feature Summary

• Multipower BCD technology with DMOS output stage for high efficiency and low distortion
• Integrated full digital diagnostic array communicating speaker status via I²C bus
• Configurable single-channel 1Ω driving capability by paralleling outputs
• Full fault protection including DC offset detection and independent short circuit safeguards

Applications

• Automotive car radio amplifiers
• High-power vehicle audio systems
• Booster amplifiers for premium car audio equipment

Procurement Notes

Verify component obsolescence status prior to procurement planning. Confirm package orientation requirements for PowerSO36 slug-up mounting. Ensure design compatibility with existing I²C bus protocols and address configurations. Validate thermal management solutions against junction temperature limits under maximum load conditions.

Selection Notes

Select this component for applications requiring high output power in a compact form factor. Consider the specific gain settings required for input signal levels. Evaluate the necessity of digital diagnostics versus standard analog control methods. Assess thermal dissipation capabilities given the high power density of the DMOS output stage.

Part Context

This part belongs to the TDA7575 series of multifunction dual-bridge power amplifiers. It represents STMicroelectronics' implementation of BCD technology for automotive audio. The device integrates both the power stage and control logic, simplifying system architecture compared to discrete solutions.

Replacement Considerations

No verified public substitute part numbers are available in the provided documentation.