E-TDA7570

Overview

The ST E-TDA7570 is a switchmode power audio amplifier featuring differential inputs and PWM output. It supports stereo single-ended or mono bridge configurations with maximum output power of 2 x 70W / 1 x 250W at THD<1%. The device operates on ±30V supply voltage, includes standby and mute functions, and provides protections against short circuits and chip thermal issues.

Feature Summary

• Switchmode power audio amplifier with differential inputs and PWM output
• Supports stereo single-ended or mono bridge power amplifier configurations
• Includes protections against short circuit across the load and chip thermal protection

Applications

• High efficiency power audio amplification systems
• Audio equipment requiring high output power capabilities
• Amplifier designs utilizing external power transistors for increased current and voltage swing

Procurement Notes

Verify the exact ordering code and package type (HiQUAD64) when sourcing components. Confirm that the specific revision matches the required application specifications. Ensure compatibility with external power MOSFETs and sensing resistors as defined in the datasheet schematics. Check for any specific environmental compliance markings such as ECOPACK if required by your manufacturing standards.

Selection Notes

Select this component for applications requiring high power output with efficient switching technology. Consider the need for external power transistors to achieve maximum current and voltage swing capabilities. Evaluate the thermal management requirements given the junction temperature ratings and thermal resistance data. Ensure the design accommodates the necessary feedback networks and gate driving components specified in the application diagrams.

Part Context

The TDA7570 is part of STMicroelectronics' portfolio of power audio amplifiers designed for high-performance audio applications. It utilizes switchmode technology to deliver high efficiency and power output. The HiQUAD64 package provides a compact solution for integrating the control logic with external power stages.

Replacement Considerations

No direct replacement part numbers are explicitly listed in the provided documentation. Consult STMicroelectronics technical support for alternative solutions if this component is no longer available or if specific performance parameters require adjustment.