UCC3813D-5 datasheet by Texas Instruments

UCC3813D-5 Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the UCC3813D-5 to minimize EMI and noise?
  It is recommended to place the UCC3813D-5 close to the power stage, use a solid ground plane, and keep the high-current paths short and wide. Additionally, use a shielded inductor and place it away from sensitive components.
• How do I optimize the compensation network for the UCC3813D-5?
  The compensation network can be optimized by using the TI's Power Stage Designer tool or by following the guidelines in the datasheet. The goal is to achieve a phase margin of at least 45 degrees and a gain margin of at least 10 dB.
• What is the maximum allowed voltage on the VCC pin of the UCC3813D-5?
  The maximum allowed voltage on the VCC pin is 15V, but it is recommended to keep it below 12V for reliable operation.
• Can I use the UCC3813D-5 in a synchronous rectification topology?
  Yes, the UCC3813D-5 can be used in a synchronous rectification topology, but it requires additional external circuitry to control the synchronous rectifier MOSFET.
• How do I protect the UCC3813D-5 from overvoltage and undervoltage conditions?
  The UCC3813D-5 has built-in undervoltage protection, but it is recommended to add external overvoltage protection using a voltage supervisor or a zener diode.