TDA7851A 4 x 48 W MOSFET quad bridge power amplifier Datasheet production data Features Multipower BCD technology High output power capability: 4 x 48 W/4 Max. 4 x 28 W/4 14.4 V, 1 kHz, 10 % 4 x 72 W/2 Max. MOSFET output power stage 0 03 Excellent 2 driving capability Flexiwatt 27 Hi-Fi class distortion Low output noise Standby function Mute function Fortuitous open GND Automute at min. supply voltage detection Reversed battery Low external component count: ESD Internally fixed gain (26 dB) No external compensation Description No bootstrap capacitors The TDA7851A is a breakthrough MOSFET Protections: technology class AB audio power amplifier, Output short circuit to GND, to Vs, across designed for high-power car radio. the load The fully complementary P-Channel/N-Channel Very inductive loads output structure allows a rail-to-rail output voltage Overrating chip temperature with soft swing. This, combined with high output current thermal limiter and minimized saturation losses, sets new power Output DC offset detection references in the car-radio field, with unparalleled Load dump voltage distortion performance. Table 1. Device summary Order code Package Packing TDA7851A Flexiwatt 27 Tube September 2013 Doc ID 17715 Rev 3 1/15 This is information on a product in full production. www.st.com 1Contents TDA7851A Contents 1 Block diagram and application circuit . 5 1.1 Block diagram . 5 1.2 Application circuit 5 2 Pin description . 6 2.1 Pin connection 6 2.2 Thermal data . 6 3 Electrical specifications 7 3.1 Absolute maximum ratings . 7 3.2 Electrical characteristics . 7 3.3 Electrical characteristics curves . 9 4 Application hints . 12 4.1 DC offset detector 12 4.2 SVR . 12 4.3 Input stage 12 4.4 Standby and muting . 12 4.5 Heatsink definition 12 5 Package information 13 6 Revision history . 14 2/15 Doc ID 17715 Rev 3