The TDA7389 is an AB class audio power amplifier produced by STMicroelectronics. It is packaged in a Flexiwatt 25 and designed for high end car radio applications. Based on a fully complementary PNP/NPN configuration, the TDA7389 allows a rail to rail output voltage swing without the need for bootstrap capacitors.
The document describes the TDA7389, an AB class audio power amplifier packaged in Flexiwatt 25. It is specifically designed for high-end car radio applications and features a fully complementary PNP/NPN configuration that allows rail-to-rail output voltage swing without bootstrap limiter capacitors.
Key specifications include four channels of up to 45W maximum output power at 14.4V supply. The device incorporates extensive protection mechanisms such as thermal shutdown, short-circuit detection (to GND and Vcc), load dump voltage protection, and reversed battery protection. It also features a standby function with automute capabilities.
| Output power (max) | 4 x 45 W |
|---|---|
| Voltage gain (typical) | 26 dB |
| Quiescent current | 150 mA |
| Package type | Flexiwatt 25 |
The device provides a maximum output power of 4 x 45 W at a supply voltage of 14.4 V.
No, it does not require external compensation or bootstrap capacitors as the gain is internally fixed.