TDA7388 4x40W Audio Power OpAmp 14.4V 190mA
The TDA7388 is a high-performance 4-channel audio power amplifier IC designed for car audio and multimedia sound systems. Built using Class-AB amplifier technology, this IC delivers powerful and clear audio output with low distortion and low noise performance. It is widely used in automotive audio systems, DIY amplifier circuits, home audio projects, and multimedia speaker applications where multiple audio channels are required.
The IC features integrated protection functions including thermal shutdown, short-circuit protection, overload protection, and reverse battery protection, making it highly reliable for continuous operation. The TDA7388 supports bridge output configuration for improved audio power delivery without requiring bootstrap capacitors. Its compact Flexiwatt25 package allows efficient heat dissipation and easy mounting with heatsinks for high-power audio applications.
Features:
- Quad channel audio amplifier.
- High output power capability.
- Low distortion audio output.
- Low noise performance.
- Built-in thermal protection.
- Short-circuit protection.
- Reverse polarity protection.
- Standby function support.
- Mute function support.
- Minimal external component requirement.
- Bridge amplifier configuration.
- Suitable for car audio systems.
- Reliable Class-AB operation.
- High efficiency audio amplification.
Specifications:
(VS = 14.4 V; RL = 4 Ω; f = 1 kHz; Tamb = 25 °C)
| Parameter | Symbol | Typical | Units |
|---|---|---|---|
| Output Power (per channel) | Po | 26 | W |
| Maximum Output Power (sat. square) | Po max | 41 | W |
| Voltage Gain | Gv | 26 | dB |
| Total Harmonic Distortion | THD | 0.04 | % (at 4 W) |
| Signal‑to‑Noise Ratio (A‑weighted) | — | 20 log(Vo/No) ≈ > 75¹ | dB |
| Output Noise | eNo | 50 | µV (A‑weighted) |
| Supply Voltage Rejection | SVR | 65 | dB @ 100 Hz |
| Input Impedance | Ri | 70 | kΩ |
| Quiescent Current | Iq1 | 190 | mA |
| Operating Supply Voltage | VS | 8 – 18 | V |
| Peak Supply Voltage | VS (pk) | 50 | V (50 ms) |
Pinout:
Applications:
- Car radio and automotive audio power amplifier
- High‑end in‑vehicle infotainment systems
- Aftermarket car audio upgrades
- Any compact, high‑power quad‑channel audio solution requiring minimal external components
Package:
- 1x TDA7388 4x40W Audio Power OpAmp.