A good PCB layout for the UCC3813D-0 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 UCC3813D-0 can deliver up to 1A of output current, but this is dependent on the input voltage, output voltage, and thermal conditions. It's essential to check the datasheet and perform thermal calculations to ensure the device can deliver the required output current in the specific application.
The UCC3813D-0 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 EN (enable) pin is used to turn the device on and off. When the EN pin is high, the device is enabled, and when it's low, the device is disabled. This pin can be used to implement power sequencing or to turn off the device during standby modes.
UCC3813D-0 datasheet
by Texas Instruments
