A good PCB layout for the TPA5051RSAR should minimize parasitic inductance and capacitance. Keep the input and output traces short and away from each other, and use a solid ground plane to reduce noise and electromagnetic interference (EMI).
The input capacitor value depends on the input voltage, output voltage, and desired ripple voltage. A general rule of thumb is to choose a capacitor with a value between 1-10uF, with a voltage rating at least 1.5 times the input voltage. Consult the datasheet and application notes for more specific guidance.
The TPA5051RSAR is rated for operation up to 85°C ambient temperature. However, it's recommended to derate the device's power dissipation and operating frequency as the temperature increases to ensure reliable operation.
To ensure EMC compliance, follow proper PCB layout and shielding guidelines, use a common-mode choke or ferrite bead on the input, and consider adding EMI filters or shielding to the device. Consult the datasheet and relevant EMC standards for more information.
The output capacitor value depends on the output voltage, output current, and desired ripple voltage. A general rule of thumb is to choose a capacitor with a value between 10-100uF, with a voltage rating at least 1.5 times the output voltage. Ceramic or electrolytic capacitors are suitable for most applications.
TPA5051RSAR datasheet
by Texas Instruments
