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DRV8320: DRV8320H test fail Issue

Part Number: DRV8320

Test Conditions:

System VCC 14V

Mode pin connect to Gnd

Idrive pin connect 18K to VCC 3.3V

VDS pin connect to VCC 3.3V

Use 6x PWM do 6-step block commutation spin function (reference below table), DRV8320H immediately damage for just start spin motor .Replace new one test again still damage .Please help to comment on this, thanks !

H1

H2

H3

GHU

GLU

GHV

GLV

GHW

GLW

1

0

1

PWM

L

L

L

L

H

1

0

0

L

L

PWM

L

L

H

1

1

0

L

H

PWM

L

L

L

0

1

0

L

H

L

L

PWM

L

0

1

1

L

L

L

H

PWM

L

0

0

1

PWM

L

L

H

L

L