TDA7388
Overview
The TDA7388 is a 4-channel Class AB audio power amplifier designed for high-end car radio applications. It features a fully complementary PNP/NPN output configuration that allows a rail-to-rail output voltage swing without the need for bootstrap capacitors. This IC integrates a high output power capability of 41W per channel into 4 ohms with a low external component count for space-constrained automotive designs.
Why Choose This Part
The TDA7388 eliminates the need for bootstrap capacitors and external compensation, significantly reducing the bill of materials and PCB footprint. It includes comprehensive protection features such as soft thermal limiting, load dump voltage protection, and immunity to reversed battery or open ground conditions, making it exceptionally rugged for automotive environments.
Applications
Key Specifications
Getting Started
To implement the TDA7388, ensure a robust thermal interface to a heatsink as the Flexiwatt25 package must dissipate heat during high-power operation. Connect the ST-BY and MUTE pins to a microcontroller for sequencing to prevent 'pop' noise during power-up. Refer to the datasheet's typical application circuit which specifies decoupling capacitors for the 8V to 18V supply rails to maintain stability.
