The maximum power dissipation of the TDA7056 is 1.4W, but it can be increased to 2.5W with proper heat sinking.
To ensure the TDA7056 operates within its SOA, ensure the voltage supply is within the recommended range, and the output current is limited to 1.5A. Also, avoid high-frequency switching and ensure proper heat sinking.
The bootstrap capacitor (Cboot) is used to generate a voltage higher than the supply voltage to drive the high-side switch. It ensures proper switching of the high-side switch and prevents shoot-through currents.
The value of the bootstrap capacitor (Cboot) depends on the switching frequency, output current, and voltage supply. A general guideline is to use a capacitor with a value between 10nF to 100nF, but it's recommended to experiment with different values to find the optimal one for your specific application.
The internal EMI filter in the TDA7056 is designed to reduce electromagnetic interference (EMI) and ensure compliance with electromagnetic compatibility (EMC) regulations. It helps to filter out high-frequency noise and prevent radiation.
