TDA7293

Product Summary

The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Topclass TV). Thanks to the wide voltage range and to the high out current capability it is able to supply the highest power into both 4W and 8W loads. The built in muting function of the TDA7293 with turn on delay simplifies the remote operation avoiding switching on-off noises. Parallel mode is made possible by connecting more device through of pin11. High output power of the TDA7293 can be delivered to very low impedance loads, so optimizing the thermal dissipation of the system.

Parametrics

TDA7293 absolute maximum ratings: (1)VS, Supply Voltage (No Signal): ±60 V; (2)V1, VSTAND-BY GND Voltage Referred to -VS (pin 8): 90 V; (3)V2, Input Voltage (inverting) Referred to -VS: 90 V; (4)V2 - V3, Maximum Differential Inputs: ±30 V; (5)V3, Input Voltage (non inverting) Referred to -VS: 90 V; (6)V4, Signal GND Voltage Referred to -VS: 90 V; (7)V5, Clip Detector Voltage Referred to -VS: 120 V; (8)V6, Bootstrap Voltage Referred to -VS: 120 V; (9)V9, Stand-by Voltage Referred to -VS: 120 V; (10)V10, Mute Voltage Referred to -VS: 120 V; (11)V11, Buffer Voltage Referred to -VS: 120 V; (12)V12, Bootstrap Loader Voltage Referred to -VS: 100 V; (13)IO, Output Peak Current: 10 A; (14)Ptot, Power Dissipation Tcase = 70℃: 50 W; (15)Top, Operating Ambient Temperature Range: 0 to 70 ℃; (16)Tstg, Tj, Storage and Junction Temperature: 150 ℃.

Features

TDA7293 features: (1)very high operating voltage range(±50v); (2)dmos power stage; (3)high output power (100w @ thd =10%, rl = 8Ω, vs = ±40v); (4)muting/stand-by functions; (5)no switch on/off noise; (6)very low distortion; (7)very low noise; (8)short circuit protected (with no input signal applied); (9)thermal shutdown; (10)clip detector; (11)modularity (more devices can be easily connected in parallel to drive very low impedances).

Diagrams