TDA7577BLV STMicroelectronics

TDA7577BLV 2 2 x 75 W dual-bridge power amplifier with I C complete diagnostics andstart-sto profile (6 V operation) Datasheet - production data Description The TDA7577BLV is a new MOSFET dual bridge 0 03 amplifier specially intended for car radio PowerSO36 (slug-up) applications. Thanks to the DMOS output stage Flexiwatt27 (vertical) the TDA7577BLV has a very low distortion allowing a clear powerful sound, together with high output power capability. 0 03 0 03 It is a very flexible device capable to support the Flexiwatt27 (horizontal) Flexiwatt27 (SMD) most demanding specifications in terms of power dissipation and battery transitions: its superior efficiency performance, coming from the internal exclusive structure, can reduce the dissipated Features output power up to the 50 % (when compared to conventional class AB solutions). Moreover it is MOSFET (DMOS) output power stage compliant to the recent OEM specifications High-efficiency (class SB) thanks to the capability to work down to 6 V Single-channel 1 driving capability ( start-stop compatibility). 84 W undistorted power This device is also equipped with a full diagnostic High output power capability 2 x 28 W / 4 array that communicates the status of each 2 14.4 V, 1 kHz, 10 % THD speaker through the I C bus. TDA7577BLV can also drive 1 loads (with parallel connection of Max. output power 2 x 75 W / 2 , the outputs). 1 x 150 W / 1 2 2 Full I C bus driving with 4 addresses It is possible also to exclude the I C bus interface, controlling the device by means of the usual ST- Low voltage (6 V) operation (i.e. start-stop ) BY and MUTE pins. Gain 16/26 dB Full digital diagnostic (AC and DC loads) Table 1. Device summary 2 Legacy mode (operation without I C) Order code Package Packing Differential inputs Flexiwatt 27 TDA7577BLV Tube (vertical) Fault detection through integrated diagnostics DC offset detection TDA7577BLVPD PowerSO36 Tube Two independent short circuit protections TDA7577BLVPDTR PowerSO36 Tape and reel Diagnostic on clipping detector with selectable Flexiwatt 27 TDA7577BLVH Tube threshold (2 % / 10 %) (horizontal) Clipping detector pin Flexiwatt 27 TDA7577BLVSM Tube (SMD) ST-BY and MUTE pins ESD protection Very robust against misconnections January 2015 DocID025375 Rev 5 1/43 This is information on a product in full production. www.st.com 0 03 Contents TDA7577BLV Contents 1 Block and pins diagrams . 6 2 Application circuit . 7 3 Electrical specifications 8 3.1 Absolute maximum ratings . 8 3.2 Thermal data . 8 3.3 Electrical characteristics . 8 3.4 Electrical characteristics typical curves 13 4 Diagnostics functional description 17 4.1 Turn-on diagnostic 17 4.2 Permanent diagnostics . 19 4.3 Output DC offset detection 20 4.4 AC diagnostic 20 4.5 Multiple faults 22 2 4.6 Fault presence information availability on I C . 22 51 load capability setting . 23 6 Battery transitions management 24 6.1 Low voltage operation (start stop) . 24 6.2 Advanced battery management 25 2 7I C mode and legacy mode selection 26 8 Application suggestions . 27 8.1 High efficiency introduction . 27 2 9I C bus interface . 28 9.1 Data validity . 28 9.2 Start and stop conditions . 28 9.3 Byte format 28 2/43 DocID025375 Rev 5