SLUSER8C June 2022 – March 2023 UCC28C50 , UCC28C51 , UCC28C52 , UCC28C53 , UCC28C54 , UCC28C55 , UCC28C56H , UCC28C56L , UCC28C57H , UCC28C57L , UCC28C58 , UCC28C59 , UCC38C50 , UCC38C51 , UCC38C52 , UCC38C53 , UCC38C54 , UCC38C55
PRODUCTION DATA
RG is the gate driver resistor for the power switch (QSW). The selection of this resistor value must be done in conjunction with EMI compliance testing and efficiency testing. Using a larger resistor value for RG slows down the turnon and turnoff of the MOSFET. A slower switching speed reduces EMI but also increases the switching loss. A tradeoff between switching loss and EMI performance must be carefully performed. For this design, a 10‑Ω resistor was chosen for the gate drive resistor.