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DRV8847: Failure

Part Number: DRV8847

Hi team, 

 This is a failure case of DRV8847S. I compared the impedance of pin to GND of each pin, which is shown in following table. 

A crucial  phenomenon is that there is a burn mark on the top of package around VM pin. And when I try to separate the chip from board, the VM pin fell. So there must be some electric damage to the VM pin when DRV8847S are operating. I found that the Cin 10uF was far from DRV8847S. Will this cause the damage of DRV8847S?

Pin to GND Normal chip Failure Chip
1 319.64k Open
2 1.9135M 1.35M
3 1.6086M 1.36M
4 1.9109M 1.34M
5 1.9073M 16
6 1.6091M 15
7 1.9155M 10
8 Open 60
9 199k 217.04k
10 197k 218k
11 198k 216.72k
12 Open Broken
14 unstable Open
15 198k 214.19k
16 200k 216.26k