UCC27200DDA datasheet by Texas Instruments

UCC27200DDA Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the UCC27200DDA to minimize EMI?
  A good PCB layout for the UCC27200DDA involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing loop areas. TI provides a recommended layout in the datasheet and application notes.
• How do I choose the right external components (e.g., inductors, capacitors) for the UCC27200DDA?
  Choose external components based on the specific application requirements, such as output voltage, current, and switching frequency. TI provides guidelines and component selection tools in the datasheet and application notes.
• What is the maximum ambient temperature range for the UCC27200DDA?
  The UCC27200DDA is rated for operation from -40°C to 125°C (TJ) and -40°C to 150°C (TSTG). However, the maximum ambient temperature range depends on the specific application and cooling conditions.
• How do I implement overcurrent protection with the UCC27200DDA?
  The UCC27200DDA has a built-in overcurrent protection feature. Set the OCSET pin to the desired current limit, and the device will automatically shut down if the current exceeds this limit. You can also use external circuitry to enhance overcurrent protection.
• Can I use the UCC27200DDA in a synchronous rectification topology?
  Yes, the UCC27200DDA is suitable for synchronous rectification topologies. However, you'll need to ensure proper dead-time control and synchronization between the high-side and low-side switches.