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TDA7569BLV：Low voltage operation, high efficiency (class SB), intelligent, quad BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute

The TDA7569BLV is the most advanced BCD technology quad bridge car radio amplifier of his family, including a wide range of innovative features.

The TDA7569BLV is equipped with the most complete diagnostics array that communicates the status of each speaker through the I²C bus.

The dissipated output power under average listening condition is significantly reduced when compared to the conventional class AB solutions, thanks to the patented solution. Moreover it has been designed to be very robust against several kinds of misconnections.

It is moreover compliant to the most recent OEM specifications for low voltage operation (so called 'start-stop' battery profile during engine stop and re-start), helping car manufacturers to reduce the overall emissions and thus contributing to environment protection.

Key Features

• Multipower BCD technology
• MOSFET output power stage
• DMOS power output
• Class SB high efficiency
• High output power capability 4x28 W/4 Ω @ 14.4 V, 1 kHz, 10% THD, 4 x 45 W max power
• Max power 4 x 72 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 bus AC load detection)
• 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
• Very robust against misconnections
• Improved SVR suppression during battery transients
• Capable to operate down to 6 V (e.g. “Start-stop”)

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