UCC27201D datasheet by Texas Instruments

UCC27201D Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the UCC27201D to minimize EMI?
  A good PCB layout for the UCC27201D involves keeping the high-frequency switching nodes (e.g., SW node) 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., inductor, capacitor) for the UCC27201D?
  Choose external components based on the specific application requirements, such as output voltage, current, and switching frequency. TI provides a component selection guide in the datasheet and application notes. Additionally, online tools like TI's Power Stage Designer can help with component selection.
• What is the maximum ambient temperature range for the UCC27201D?
  The UCC27201D is rated for operation from -40°C to 125°C (TJ). However, the maximum ambient temperature range depends on the specific application and cooling conditions. Consult the datasheet and thermal design guidelines for more information.
• How do I implement overcurrent protection with the UCC27201D?
  The UCC27201D has a built-in overcurrent protection feature. To implement it, connect a sense resistor (Rs) in series with the output inductor, and set the OC threshold voltage (Vocp) using an external resistor divider. Consult the datasheet for more information.
• Can I use the UCC27201D in a synchronous rectification topology?
  Yes, the UCC27201D can be used in a synchronous rectification topology. However, this requires additional external components and careful design consideration to ensure proper operation. Consult TI's application notes and design guides for more information.