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DRV8824: pcb Layout 线宽问题

Part Number: DRV8824


目前我们在使用DRV8824用于驱动两相步进电机,使用的是VQFN封装,该封装OUTA和OUTB引脚宽度是0.2mm~0.3mm,那么我们在进行PCB Layout时,PCB 线宽会限定在0.3mm以内,而电机设置电流是1.8A RMS,PCB铜厚是0.5盎司,这样的电流用于0.3mm的线宽,长时间使用可能存在问题,对此有什么Layout建议,谢谢!