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DRV8886AT: DRV8886AT

Part Number: DRV8886AT
Other Parts Discussed in Thread: DRV8825, DRV8886,

 1.V RREF   test condition is RREF=18-20K;In fact, the circuit  is connected to 15K。in this case,what is the VRREF?Is there a corresponding curve for RREF and VRREF?

2.In the image above,drv8825 internal current control PWM frequency is 30kHz。what about DRV8886?there is not stated in the data sheet。calculation of power consumption needs to know this parameter。