How to select the proper MOSFETs for Brushless DC motor drive circuit?
The Motor will work at 22.2V max. voltage and 40A max. current.
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1\$\begingroup\$ Have you tried looking at a MOSFET data sheet and seeing what sense you can make of it in view of the voltage and current values presented in your question? \$\endgroup\$– Andy akaCommented Jul 16, 2020 at 10:00
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1\$\begingroup\$ @Andyaka I am asking if there are any factors than voltage and current. \$\endgroup\$– bbbuuhh766Commented Jul 16, 2020 at 10:14
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1\$\begingroup\$ Other factors: on-resistance, gate-capacitance, switching speed, reverse recovery speed of the MOSFET parasitic diode, drain-source capacitance, gate threshold voltage... \$\endgroup\$– Andy akaCommented Jul 16, 2020 at 10:18
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1\$\begingroup\$ @Andyaka Thanks for your helpful answer. \$\endgroup\$– bbbuuhh766Commented Jul 16, 2020 at 10:20
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Start with MOSFETs that are capable of 2 x current you need and 2 x voltage you need. There will be spikes of current and voltage that must be handled. Otherwise, the most important thing is ON resistance, gate capacitance and gate threshold voltage.
