TDA7569LVPD

Overview

The TDA7569LVPD is a Class-SB quad bridge audio amplifier manufactured by STMicroelectronics, designed for automotive applications. It operates within a supply voltage range of 6 V to 18 V and delivers output power of 50 W or 75 W depending on load conditions. The device features four channels with selectable gains of 16 dB or 26 dB. It supports load impedances of 2 Ohms and 4 Ohms, achieving a THD plus noise level of 0.3%. Key electrical parameters include a maximum output current of 8 A, an operating supply current of 170 mA, and an input offset voltage (Vos) of 80 mV. The component is housed in a PowerSO-36 package and is qualified under AEC-Q100 standards.

Feature Summary

• High-efficiency Class-SB operation reduces dissipated output power compared to conventional Class AB solutions.
• Integrated full I2C bus diagnostics for independent front/rear monitoring, DC/AC load detection, and fault identification.
• Robust design against misconnections and improved suppression of battery transients during low voltage operation.
• Comprehensive protection suite including thermal shutdown, short circuit protection, and clipping detection.

Applications

• Car radio amplifiers
• Automotive infotainment systems

Procurement Notes

Verify the specific suffix 'LVPD' against official STMicroelectronics documentation to confirm pinout and packaging details. Confirm the lifecycle status, as related variants may be marked as Not Recommended for New Designs (NRND). Ensure compatibility with the target PCB footprint for the PowerSO-36 package and validate thermal management requirements for the intended power output levels.

Selection Notes

Select this component for designs requiring high efficiency and integrated digital diagnostics in automotive environments. The differential input stage offers improved disturbance rejection. Consider the available gain settings (16 dB or 26 dB) to match source impedance requirements. Verify that the system can support the minimum 6 V start-stop profile operation if required by the application specifications.

Part Context

This part belongs to the TDA7569 family of advanced BCD technology quad bridge car radio amplifiers. It shares functional similarities with variants such as the TDA7569BDLVPD and TDA7569BLV, which also feature I2C diagnostics and high efficiency. The family is designed to meet OEM specifications for low voltage operation and environmental protection through reduced emissions.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the available data. Related family members include TDA7569BDLVPD and TDA7569BLV. Verify pin-to-pin compatibility and parameter alignment before substitution.