STMicroelectronics Archives - Page 42 of 115

Description

The Device is a new technology class AB audio power amplifier in Flexiwatt 27 package
designed for high end car radio applications.
Thanks to the fully complementary PNP/NPN output configuration the Amplifier allows a rail to
rail output voltage swing with no need of bootstrap capacitors. The extremely reduced components
count allows very compact sets. The TDA7388A is alsoequipped with Clipping detector and Offset detector features.

Part Number: TDA7293, TDA7293V

Function : 120V – 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY

Manufacturer: ST Microelectronics

Image

Description

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 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 can be delivered to very low impedance loads, so optimizing the thermal dissipation of the system.

Pinout

Features

1. VERY HIGH OPERATING VOLTAGE RANGE (±50V)
2. DMOS POWER STAGE
3. HIGH OUTPUT POWER (100W @ THD = 10%, RL = 8W, VS = ±40V)
4. MUTING/STAND-BY FUNCTIONS
5. NO SWITCH ON/OFF NOISE
6. VERY LOW DISTORTION
7. VERY LOW NOISE
8. SHORT CIRCUIT PROTECTION
9. THERMAL SHUTDOWN
10. CLIP DETECTOR

Application Circuit