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Hi Team,
This post is a continuation of the other thread below.
I just received this update from our customer.
We are seeing this, after sending the clear_fault(03) command.
Below I have given status register behaviour 1) after power on ( EN – 3.3V)
2) after clear_faults(03)
1) After power on ( EN – 3.3V)
STATUS_MFR_SPECIFIC (80h)
Bit4- ‘1’
STATUS_INPUT (7Ch)
Bit5- ‘0’
Bit2- ‘1’
STATUS_WORD (79h)
Bit13- ‘1’
Bit12- ‘1’
Bit3- ‘0’
Bit1- ‘1’
2)After clear_faults (03)
STATUS_MFR_SPECIFIC (80h)
Bit4- ‘0’
STATUS_INPUT (7Ch)
Bit5- ‘0’
Bit2- ‘0’
STATUS_WORD (79h)
Bit13- ‘0’
Bit12- ‘0’
Bit3- ‘0’
Bit1- ‘0’
I would like brief about the issue, the circuit worked for someday well and suddenly output went off when we changed the load. (previously it worked well with that load & load change is during system power off state).
When we probe the gate pin voltage is ‘0’. Enable and VIN and rest other pins looks okay
Then we started checking internal status registers above are the observation.
We tried multiple AC cycle, multiple enable still no improvement.
We have total 3 boards with same issue.
Could you please help us how to debug this further?
Regards,
Danilo