TDA7388 is a 4 x 45 W quad bridge car radio amplifier produced by ST company. It has the advantages of high output power, low distortion, low noise, standby function, mute function, automute and low external component count.
The TDA7388 is an AB class audio power amplifier packaged in Flexiwatt25. It is specifically designed for high-end car radio applications and features a high output power capability of 4x45W at maximum supply voltage. The device includes internal protections such as output short circuit protection, load dump voltage configuration, and soft thermal limiting.
| Output power (max) | 4x 45 W |
|---|---|
| Operating supply voltage | 18 V |
| DC supply voltage (max) | 28 V |
| Peak supply voltage (t = 50 ms) | 50 V |
| Output peak current (repetitive) | 45 A |
| Power dissipation (Tjamb = 25 °C) | 80 W |
| Junction temperature (max) | 150 °C |
| Voltage gain | 26 dB |
The device provides a maximum output capability of 4x45W.
To serve both ripple rejection and pop optimization needs, the minimum recommended value is 10 pF.
Since about 10 mA flows out of pin 22, the maximum allowable muting-series resistance (Rg) is 70 kΩ.