TDA7562B

Overview

The TDA7562B is a quad bridge-type car radio amplifier utilizing BCD technology and DMOS output stages. It delivers high output power with low distortion for clear audio reproduction. The device features full I2C bus control for configuration, diagnostics, and standby functions. Key electrical specifications include a maximum output power of 4 x 68 W into 2 Ω loads and 4 x 42 W into 4 Ω loads at 14.4 V. It operates within a supply voltage range up to 18 V and supports selectable gain settings between 30 dB and 16 dB.

Feature Summary

• DMOS output stage providing high power capability with very low distortion
• Full I2C bus driving for independent front/rear soft play/mute and selectable gain
• Comprehensive digital diagnostics array communicating speaker status via I2C
• Integrated fault protection including DC offset detection and four independent short circuit protections

Applications

• Car radio applications
• Automotive information entertainment systems
• Vehicle cabin audio amplification

Procurement Notes

Verify the specific package variant, as the TDA7562B is often associated with Flexiwatt27 packaging. Confirm that the NRND (Not Recommended for New Designs) status does not impact long-term availability requirements for your production timeline. Ensure compatibility with existing I2C bus architectures in your automotive design before finalizing procurement.

Selection Notes

Select this component when a quad bridge amplifier with integrated I2C diagnostics is required for automotive environments. It is suitable for designs needing high power density with minimal external components. Consider the NRND status if designing new products requiring long-term supply assurance. Verify thermal management capabilities align with the expected power dissipation in the target enclosure.

Part Context

The TDA7562B belongs to STMicroelectronics' portfolio of multi-channel power amplifiers designed for automotive use. It shares architectural similarities with the TDA7562 but includes specific diagnostic enhancements. These devices are engineered to meet the rigorous demands of vehicle audio systems, offering robust protection features and flexible control interfaces through standard communication protocols.

Replacement Considerations

The TDA7562 is a related active part with similar functionality but may differ in specific diagnostic implementations or pinout configurations. Verify electrical compatibility and software register maps before substitution. No other direct public substitute part numbers are confirmed for this specific model.