TDA7851A

www.DataSheet4U.com TDA7851A 4 x 45 W MOSFET quad bridge power amplifier Features ■ ■ Multipower BCD technology High output power capability: – 4 x 45 W/4 Ω Max. – 4 x 28 W/4 Ω @ 14.4 V, 1 kHz, 10 % – 4 x 72 W/2 Ω Max. MOSFET output power stage Excellent 2 Ω driving capability Hi-Fi class distortion Low output noise Standby function Mute function Automute at min. supply voltage detection Low external component count: – Internally fixed gain (26 dB) – No external compensation – No bootstrap capacitors ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Flexiwatt 27 Fortuitous open GND Reversed battery ESD Description The TDA7851A is a breakthrough MOSFET technology class AB audio power amplifier, designed for high-power car radio. The fully complementary P-Channel/N-Channel output structure allows a rail-to-rail output voltage swing. This, combined with high output current and minimized saturation losses, sets new power references in the car-radio field, with unparalleled distortion performance. Protections ■ ■ ■ ■ ■ Output short circuit to Gnd, to Vs, across the load Very inductive loads Overrating chip temperature with soft thermal limiter Output DC offset detection Load dump voltage Device summary Order code TDA7851A Table 1. Package Flexiwatt 27 Packing Tube July 2010 Doc ID 17715 Rev 1 1/15 www.st.com 1 www.DataSheet4U.com Contents TDA7851A Contents 1 Block diagram and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 1.2 Block diagram . . . . . . . . . ...