TDA75610S-8ZX

Overview

The TDA75610S-8ZX is a quad bridge car radio amplifier utilizing Multipower BCD technology and DMOS output stages. It operates within a supply voltage range of 6V to 18V, delivering up to 4x25W into 4Ω loads at 14.4V with 10% THD, or 4x45W maximum power. The device supports 2Ω driving capability for up to 64W maximum power. It features high efficiency via Class SB operation, full I2C bus diagnostics including DC/AC load detection, independent front/rear soft play/mute control, selectable gain (26dB/16dB), and robust protection against misconnections, short circuits, and thermal faults.

Feature Summary

• High efficiency Class SB operation significantly reduces dissipated output power compared to conventional Class AB solutions.
• Comprehensive I2C bus digital diagnostics array communicates speaker status, including DC offset and AC load detection.
• Robust design ensures resilience against various types of misconnections and complies with low voltage 'start-stop' battery profiles.
• Integrated flexible fault detection includes four independent short circuit protections, linear thermal shutdown, and clipping detection.

Applications

• Quad bridge car radio amplifiers
• Automotive audio systems requiring low voltage operation
• Start-stop compatible vehicle environments

Procurement Notes

Verify the specific ordering suffix matches the required package type. The TDA75610S-8ZX corresponds to the Flexiwatt27 SMD package in tube packing. Confirm that the application circuit aligns with the provided datasheet recommendations for this specific package variant to ensure proper thermal management and electrical performance.

Selection Notes

Select this component for automotive applications demanding high output power with reduced heat dissipation. The integrated I2C diagnostics simplify system monitoring and fault isolation. Ensure the design accommodates the 6V minimum operating voltage for start-stop functionality and utilizes the appropriate gain settings for the desired noise performance.

Part Context

This part belongs to the TDA75610SLV family of quad bridge power amplifiers. It represents an evolution in STMicroelectronics' intelligent power technology, combining BCD processes with Class SB efficiency. The series is widely adopted by major car manufacturers for its compactness, diagnostic capabilities, and compliance with modern automotive electrical standards.

Replacement Considerations

TDA75610S-8ZT (same function, Tape & Reel packaging)

FAQ

How does the TDA75610S-8ZX handle turn-on diagnostics?

It generates an internal subsonic current pulse during standby-out to detect output faults such as shorts to ground, shorts to Vs, open speakers, or shorted loads before fully enabling the power stage.

What is the purpose of the selectable gain feature?

The selectable gain of 26 dB or 16 dB allows optimization for different input sources. The lower 16 dB setting is specifically designed for low noise line output functions.