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DRV8262-Q1: DRV8262

Part Number: DRV8262-Q1
Other Parts Discussed in Thread: DRV8262

Two DRV8262s are driving a stepper motor in parallel, with one of them powered off (both the power supply VM and signal supply VCC are disconnected) and in a cold standby state. Is this redundancy design feasible? What should be considered in hardware design?

两个DRV8262 并联驱动一个步进电机 ,其中一个断电(包括功率电VM和信号电VCC都断开)处于冷备用状态。这种冗余设计可行吗?硬件设计中需要注意什么? 

  • 您好,
    已经收到了您的案例,调查需要些时间,感谢您的耐心等待。

  • 您好,
    两个DRV8262并联同时驱动一个负载是不可行的。

    但如果一个芯片的VCC和VM都断开,即芯片没有供电电压,那么理论上其OUT管脚的电压是0V或高阻态.

    两个芯片的OUT管脚直连,我猜测供电芯片的OUT输出压不会正常,或者可能损坏未供电的芯片,具体您实测一下。