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TDA7567PD：Intelligent high efficient (class SB) differential input, quad BTL output with full I2C diagnostics (turn on, permanent, ac)

The TDA7567PD is a new BCD technology quad bridge power amplifier in PowerSO36 package specially intended for automotive applications.

Thanks to the DMOS output stage the TDA7567PD 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 diagnostics array that communicates the status of each speaker through the I²C bus.

The I²C bus can be disabled and the device can be controlled by standby/mute pin.

Key Features

• Multipower BCD technology
• MOSFET output power stage
• DMOS power output
• Differential Input
• New high efficiency (class SB)
• High output power capability 4x28 W/4 Ω @ 14.4 V, 1 kHz, 10% THD, 4x50 W MAX power
• Max. output power 4x72 W/2 Ω
• Full I2 C bus driving:
  • Standby
  • Independent front/rear soft play/mute
  • Selectable gain 26 dB /16 dB (for low noise line output function)
  • High efficiency enable/disable
  • I2 C bus digital diagnostics (including DC and AC load detection)
• Operates both in I2 C and non-I2 C bus mode
• Two selectable I2 C bus addresses
• Full fault protection
• DC offset detection
• Four independent short circuit protection
• Clipping detector pin with selectable threshold (2 %/10 %)
• Standby/mute pin
• Linear thermal shutdown with multiple thermal warning
• ESD protection

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