A good PCB layout for the UCC3895DWTR involves keeping the input and output stages separate, using a star-ground configuration, and placing the input filter components close to the IC. Additionally, using a solid ground plane and minimizing trace lengths can help reduce EMI.
The choice of input filter components depends on the specific application and the desired level of EMI filtering. A good starting point is to use a combination of ceramic capacitors and ferrite beads, with values selected based on the frequency range of interest and the impedance of the input signal.
The UCC3895DWTR can deliver up to 1.5A of output current, but this is dependent on the input voltage, output voltage, and thermal conditions. It's recommended to check the datasheet and application notes for specific guidance on output current capabilities.
The UCC3895DWTR has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the OC pin and the output voltage. The value of the resistor determines the overcurrent threshold, and the device will shut down if the output current exceeds this threshold.
The UCC3895DWTR is a high-power device that requires adequate thermal management to prevent overheating. A good strategy involves using a heat sink with a thermal resistance of less than 10°C/W, and ensuring good airflow around the device. Additionally, reducing the output voltage and current can help reduce heat generation.
UCC3895DWTR datasheet
by Texas Instruments
