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DRV10975: Lock detection current limit, Lock0 Fault: 0x1/0x1

Part Number: DRV10975

Attach file includes schematic (2 motor wheel PW/DW) and setting.

I2C_Register_DRV10975.txt
dvDRV10975_Init(1)

PW:

reg_0x03 Cmd_01 = 0x80 (1)

reg_0x03 Cmd_01 = 0xC0 (1)

reg_0x03 Cmd_01 = 0xE0 (1)

reg_0x2B Cmd_22 = 0x2C (1)

reg_0x2A Cmd_21 = 0x00 (1)

reg_0x20 Cmd_11 = 0x4A (1)

reg_0x21 Cmd_12 = 0x0C (1)

reg_0x23 Cmd_14 = 0x03 (1)

reg_0x24 Cmd_15 = 0xEB (1)

reg_0x25 Cmd_16 = 0xE3 (1)

reg_0x26 Cmd_17 = 0xE1 (1)

reg_0x27 Cmd_18 = 0xBC (1)

reg_0x28 Cmd_19 = 0xFF (1)

reg_0x29 Cmd_20 = 0x68 (1)

reg_0x01 reg_0x00 Speed= 0 (1)

reg_0x01 reg_0x00 Speed= 400 (1)

DW:

reg_0x03 Cmd_01 = 0x80 (1)

reg_0x03 Cmd_01 = 0xC0 (1)

reg_0x03 Cmd_01 = 0xE0 (1)

reg_0x2B Cmd_22 = 0x2C (1)

reg_0x2A Cmd_21 = 0x00 (1)

reg_0x20 Cmd_11 = 0x4A (1)

reg_0x21 Cmd_12 = 0x0C (1)

reg_0x23 Cmd_14 = 0x03 (1)

reg_0x24 Cmd_15 = 0xEB (1)

reg_0x25 Cmd_16 = 0xE3 (1)

reg_0x26 Cmd_17 = 0xE1 (1)

reg_0x27 Cmd_18 = 0xBC (1)

reg_0x28 Cmd_19 = 0xFF (1)

reg_0x29 Cmd_20 = 0x68 (1)

reg_0x01 reg_0x00 Speed= 0 (1)

reg_0x01 reg_0x00 Speed= 400 (1) 

6562.Main_BD _ P07_DRV10975 - PW & D.pdf

DUT run the power ON 90s/ OFF 20s test on the ambient temperature (25 degrees), we found the DRV10975 Fault: 0x1 (error rate 1/2124)

At -5 degrees condition that the error rate 14/99. we measured current 2.54A or 3.04 <3.2A (HWiLimitThr [2:0]) that can't trigger the fault code.

What's trigger time of Lock 0 fault? In this case, what we need to confirm parameter setting?

Attach pictures is 25 degrees condition current waveform.

picture 1:  Lock 0 =0x1, the measured current is 3.04A

picture 2:  Lock 0 =0x1 after power on 15 sec.

picture 1picture 2