stepper motor driver IC is used in PCBs, this method requires special cooling technology to deal with power consumption.
Heat transfer on two-layer PCBs may be more difficult due to the presence of trace amounts and components. It is necessary to provide as many solid copper as possible with good thermal connections to stepper motor driver ICs.
Casting copper in two outer layers and stitching them together with many small holes helps to disperse heat to areas cut by traces and components.
Because the current of the stepper motor driver IC of the in-out motor is very large (in some cases more than 10a), the width of the PCB line in-out device should be carefully considered.
The wider the mark, the smaller the resistance. The size of the tracking must be adjusted so that the tracking resistance does not dissipate too much power, leading to tracking warming.
Too small a trace can actually burn like a fuse! It is important to understand that the tracking width recommendation in IPC-2221 applies to a long PCB tracking with constant width.
Component configuration guidelines for electric drive integrated circuits are similar to other types of power integrated circuits.
Bypass capacitors should be placed as close as possible to the device power pins, and large capacity capacitors should be placed nearby. Many stepper motor driver ICs use bootstrap and/or charge pump capacitors.