Hello,
Regarding to the TPIC2060A, my customer is facing problem.
(Symptom)
After initial configuration of the TPIC2060A, the motor does not drive in the first spindle motor drive.
-> The motor moves slightly to the right and left but does not rotate.
(Confirmation)
(1)When taking wait time of Mute OFF (REG 70 XSLEEP = 1) for about 30 ms, this problem is not happened .
But it is happened for about 10-20 ms.
(2)They are setting REG6B to 0x00(Enable) and changed to 0x04(Disable), but problem was not improved with both setting.
(REG6B:Reduce the reverse current )
(3) The signal is input to TPIC2060A, but it seems that the output signal (U, V, W signal) is not output correctly.
(4) The problem happens at a rate of about 1/10 to 1/20 times.
Please see attached signal wave capture.
(Question)
(1)They confirmed that it is improved by changing wait time (10-20ms -> 30ms).
Could you please give some comment or opinion and advice on the relationship with this problem?
(2) I ‘m asking to them about confirmation items following.
If you need information more, could you please inform to me?
(a) Confirmation by replacing other TPIC2060A.
(b) How many devices is problem happened?
(c) Register setting list.
(d) Confirmation setting of REG70. (Set 1 to XSLEEP before setting each enable bit.)
*Now they are using this device for mass production and this problem is happened.
So we have to make solve this problem as soon as possible.
I hope to solve with your help.
Regards,
Tao2199
20170411_TPIC2060_SPM drive_issue.xls