TDA7567PDTR STMicroelectronics

TDA7567PD 4 x 50 W differential quad power amplifier with built-in diagnostics features Features Multipower BCD technology MOSFET output power stage DMOS power output Differential Input PowerSO36 New high efficiency (class SB) High output power capability 4x28 W/4 14.4 V, 1 kHz, 10% THD, 4x50 W MAX power Max. output power 4x72 W/2 Description 2 Full I C bus driving: The TDA7567PD is a new BCD technology quad Standby bridge power amplifier in PowerSO36 package Independent front/rear soft play/mute specially intended for automotive applications. Selectable gain 26 dB /16 dB (for low noise line output function) Thanks to the DMOS output stage the TDA7567PD has a very low distortion allowing a High efficiency enable/disable 2 clear powerful sound. Among the features, its I C bus digital diagnostics (including DC superior efficiency performance coming from the and AC load detection) internal exclusive structure, makes it the most 2 2 Operates both in I C and non-I C bus mode suitable device to simplify the thermal 2 Two selectable I C bus addresses management in high power sets. Full fault protection The dissipated output power under average listening condition is in fact reduced up to 50 % DC offset detection when compared to the level provided by Four independent short circuit protection conventional class AB solutions. Clipping detector pin with selectable threshold This device is equipped with a full diagnostics (2 %/10 %) array that communicates the status of each Standby/mute pin 2 speaker through the I C bus. Linear thermal shutdown with multiple thermal 2 The I C bus can be disabled and the device can warning be controlled by standby/mute pin. ESD protection Table 1. Device summary Order code Package Packing TDA7567PD PowerSO36 Tube TDA7567PDTR PowerSO36 Tape and reel September 2013 Doc ID 16903 Rev 2 1/30 www.st.com 1Contents TDA7567PD Contents 1 Block, application and pins connection diagrams . 6 2 Electrical specifications 8 2.1 Absolute maximum ratings . 8 2.2 Thermal data . 8 2.3 Electrical characteristics . 8 3 Diagnostics functional description 12 3.1 Turn-on diagnostic 12 3.2 Permanent diagnostics . 14 3.3 Output DC offset detection 15 3.4 AC diagnostic 15 4 Multiple faults . 17 4.1 Faults availability . 17 5 Thermal protection . 18 6 Fast muting . 19 2 7 Address selection and I C disable 20 2 8I C bus . 21 2 8.1 I C programming/reading sequences 21 2 8.2 I C bus interface 21 8.2.1 Data validity 21 8.2.2 Start and stop conditions 21 8.2.3 Byte format 21 8.2.4 Acknowledge . 22 9 Software specifications . 23 10 Examples of bytes sequence . 27 2/30 Doc ID 16903 Rev 2