
STMicroelectronics
Description
The TDA7576B is a dual bridge power amplifier with MOSFET output power stages. It has been specifically designed for 24 V power supply systems making it compatible with truck/bus applications.
The feedback topology allows excellent distortion performances and the integrated buffer minimizes the need for external components. The fully complementary P-channel/N-channel output structure allows rail-to-rail output voltage swing minimizing saturation losses.
FEATUREs
■ Multipower BCD technology
■ 24 V battery operation
■ MOSFET output power stage
■ High output power capability
– 2 x 20 W/4 @ 24 V, 1 kHz; 10 %
■ Minimized external components
– No decoupling capacitors
– No bootstrap capacitor
– No external compensation
– Internally fixed gain
■ Standby function
■ Mute function
■ Diagnostic pin for:
– clip detector (THD 2 %)
– short circuit detection
– thermal protection
■ Output DC offset detection
■ Protections:
– 60 V load dump
– Overrating chip temperature
– Out short circuit protection (to GND, Vcc and across the load)
– ESD