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TDA7575B：Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs

The TDA7575B is a new MOSFET dual bridge amplifier specially intended for car radio applications. Thanks to the DMOS output stage the TDA7575B has a very low distortion allowing a clear powerful sound.

Among the features, its superior efficiency performance coming from the internal exclusive structure, makes it the most suitable device to simplify the thermal management in high power sets.The dissipated output power under average listening condition is in fact reduced up to 50% when compared to the level provided by conventional class AB solutions.

This device is equipped with a full diagnostic array that communicates the status of each speaker through the I²C bus. The TDA7575B has also the possibility of driving loads down to 1Ω paralleling the outputs into a single channel. It is also possible to disable the I²C and control the TDA7575B by means of the usual standby and mute pins.

Key Features

• Multipower bcd technology
• MOSFET output power stage
• DMOS power output
• New high-efficiency (class AB)
• Single-channel 1 Ω driving capability
• High output power capability 2x28 W/4 Ω @ 14.4 V, 1 kHz, 10 % THD
• Max. output power 2x75 W/2 Ω, 1x150 W/1 Ω
• Single-channel 1 Ω driving capability
• 84 W undistorted power
• Full I2 C bus driving with 4 address possibilities:
  • Standby
  • Play/mute
  • Gain 12/26 dB
  • Full digital diagnostic (AC and DC loads)
• Possibility to disable the I2 C bus
• Differential inputs
• Full fault protection
• DC offset detection
• Two independent short circuit protections
• Diagnostic on clipping detector with selectable threshold (2 % / 10 %)
• Clipping detector as diagnostic pin when I2 C bus is disabled
• Standby/mute pins
• ESD protection

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选型指南

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质量和可靠性