The UCC28019AD is a high-frequency device, so it's crucial to follow good PCB layout practices to minimize noise and EMI. TI recommends placing the device close to the power stage, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, decoupling capacitors should be placed close to the device's power pins.
The choice of external components, such as the bootstrap capacitor, current sense resistor, and output filter components, depends on the specific application requirements. TI provides guidelines and calculations in the datasheet and application notes to help engineers select the right components for their design.
The UCC28019AD can operate up to 1 MHz, but the maximum operating frequency depends on the specific application and the design of the power stage. Engineers should consult the datasheet and application notes for guidance on selecting the optimal switching frequency for their design.
The UCC28019AD has a built-in overcurrent protection feature that can be enabled by connecting the OC pin to a resistor and capacitor network. The datasheet provides a detailed description of the overcurrent protection circuit and the calculations required to set the overcurrent threshold.
Yes, the UCC28019AD can be used in synchronous rectification topologies. However, engineers should ensure that the device is properly configured and that the synchronous rectifier is properly sized and controlled to avoid shoot-through currents and other issues.
UCC28019AD datasheet
by Texas Instruments
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