This document introduces the features of TDA7564B, including Multipower BCD technology, MOSFET output power stage, DMOS power output, high efficiency (class SB), high output power capability, maximum output power, full I2C bus driving, full fault protection, DC offset detection, four independent short circuit protection, clipping detector (2%/10%), linear thermal shutdown and multiple thermal warnings
The document describes the TDA7564B, a new BCD technology quad bridge type car radio amplifier featuring DMOS output stages for high efficiency (Class SB). It is designed to simplify thermal management in high-power audio sets by reducing dissipated power under average listening conditions compared to conventional Class AB solutions.
The device includes a full diagnostics array that communicates the status of each speaker through an I2C bus, allowing for features such as independent front/rear soft play/mute and selectable gain. It offers four independent short circuit protection channels, DC offset detection, clipping detectors, and linear thermal shutdown with multiple warning levels.
| Output power (4Q) | 4x50 W max |
|---|---|
| Output power (2Q) | 4x72 W |
| Supply voltage range | -8 to +18 V |
| Output power (THD=10%) | 28 W per channel |
The maximum output power is 4x72 W when configured as a dual channel (2Q).
Yes, it features a full diagnostics array that communicates speaker status through an I2C bus.
The maximum storage and junction temperature rating is 150 °C.