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High side gate drive using TMC5160A

Category: Hardware
Product Number: TMC5160A
Hello,
 
We are going to use TMC5160A for higher voltage application 75V with the help of MAX5062C. We took reference from the application diagram which has been shared in to the datasheet. could anyone please guide us in the selection of the 22n capacitor & 22K resistor as well diode part number which has been given in the reference design.
 
I have attached the screenshot for your reference. 
  • Hi, use any small signal diode capable of withstanding 100V. You can play with these values /try out to get low power dissipation and sufficient gate driver cap charging after power up. A higher resistor and lower capacitance reduce charging current.

    One hint for BM connection - we found that it can be critical in case of ripple at Rs. I propose to use an series resistor between RS and BM pins. 2.2 to 4.7 Ohm are fine. Additionally, protect BM pins with antiparallel diodeds to GND, so that they do not swing more than +-0.7...1V.