General description:
The TDA7381 is a class AB audio power amplifier in Flexiwatt25 package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7381 allows a rail to rail output voltage swing with no need of bootstrap capacitors.
Features:
- 4 x 30 W/4 max.
- 4 x 25 W/4 EIAJ
- 4 x 18 W/4 @ 14.4 V, 1 kHz, 10 %
- 4 x 15 W/4 @ 13.2 V, 1 kHz, 10 %
- Clipping detector
- Low distortion
- Low output noise
- Standby function
- Mute function
- Automute at min. supply voltage detection
- Clipping
- Out to GND short
- Out to VS short
- Thermal shutdown
- Internally fixed gain (26 dB)
- No external compensation
- No bootstrap capacitors
- Output short circuit to GND, to VS, across the load
- Very inductive loads
- Overrating chip temperature with soft
- thermal limiter
Circuit diagram:
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| 4x25 W quad bridge car radio amplifier |
