SLUA887A August 2018 – September 2023 UCC27710 , UCC27712 , UCC27714
Driving MOSFETs in half-bridge configurations present many challenges for designers. One of those challenges is generating bias for the high-side FET. A bootstrap circuit takes care of this issue when properly designed.
This document uses UCC27710, TI's 620V half-bridge gate driver with interlock to present the different components in a bootstrap circuit and how to properly select them in order to ensure predictable switching of the power FETs.