Part 1 - UIS/avalanche ratings The unclamped inductive switching (UIS) rating has proven to be a useful parameter since becoming prevalent in MOSFET data sheets in the mid-1980s. While repetitive avalanching of the FET is not recommended in actual applications, engineers have learned to use ...
This document just focuses on simple first order approximations that are compared to lab data. Because the MOSFET VDS slew occurs during the Miller region, the Miller charge (QGD) and gate drive strength can be used to approximate the slew rate. The first assumption that should be made is ...
Gate drivers are used to drive the MOSFETs in our ESC. They’re connected to the gate of a MOSFET, hence the name “gate driver.” Older ESCs use simple transistors to drive the MOSFETs. Using dedicated gate drivers improves active braking effectiveness. Instead of having separate gate drivers...
These factors are typically captured in data-sheet parameters such as the junction-to-ambient thermal resistance (RӨJA), along with careful estimates of application conditions. For more details on common thermal impedance values in MOSFET data sheets, watch the video: Understanding MOSFET data ...
Gate drivers are used to drive the MOSFETs in our ESC. They’re connected to the gate of a MOSFET, hence the name “gate driver.” Older ESCs use simple transistors to drive the MOSFETs. Using dedicated gate drivers improves active braking effectiveness. Instead of having separate gate drivers...
Understanding Buck Power Stages in Switchmode Power Supplies 25 Component Selection The type of power switch considered in this report is a power MOSFET. Other power devices are available but in most instances, the MOSFET is the best choice in terms of cost and performance (when the drive ...
Features • Dual-H-Bridge Current-Control Motor Driver – Capable of Driving Two DC Motors or One Stepper Motor – Low MOSFET On-Resistance • Output Current 1.5-A RMS, 2-A Peak per H-Bridge (at VM = 5 V, 25°C) These current specifications are based on thermal limitations as well...