User Manual
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V 1.0
2021-08-25
XDPP1100 technical reference manual
Digital power controller
Fault handler
Peripheral Field name
Access Address
Bits
Description
1: 2 T
switch
2: 4 T
switch
3: 8 T
switch
fault
fault_vin_uv_fault_cnt
RW
7000_3C04h
(Loop 0)
7000_4004h
(Loop 1)
[5:4]
Input undervoltage fault count.
Defines the number of consecutive
switching cycles (T
switch
) the input
voltage must exceed the fault
threshold by in order to assert a
fault.
0: 1 T
switch
1: 2 T
switch
2: 4 T
switch
3: 8 T
switch
fault
fault_vin_uv_warn_cnt
RW
7000_3C04h
(Loop 0)
7000_4004h
(Loop 1)
[7:6]
Input undervoltage warning count.
Defines the number of consecutive
switching cycles (T
switch
) the input
voltage must exceed the warn
threshold by in order to assert a
warning.
0: 1 T
switch
1: 2 T
switch
2: 4 T
switch
3: 8 T
switch
fault
fault_iin_oc_fault_cnt
RW
7000_3C04h
(Loop 0)
7000_4004h
(Loop 1)
[12:8]
Input overcurrent fault count.
Defines the number of consecutive
switching cycles (T
switch
) the low-
pass filtered input current must
exceed the fault threshold by in
order to assert a fault.
Count = fault_iin_oc_fau 1
fault
fault_iin_oc_warn_cnt
RW
7000_3C04h
(Loop 0)
7000_4004h
(Loop 1)
[17:13] Input overcurrent warning count.
Defines the number of consecutive
switching cycles (T
switch
) the low-
pass filtered input current must
exceed the warn threshold by in
order to assert a warning.
Count = fault_iin_oc_wa 1
fault
fault_vin_fault_hyst
RW
7000_3C04h
(Loop 0)
7000_4004h
(Loop 1)
[23:18] Input voltage (V
IN
) fault (warning)
deassertion hysteresis. Internally,
the V
IN
OV fault is asserted when V
IN
exceeds VIN_OV_FAULT_LIMIT for
fault_vin_ov_fault_cnt samples
without dropping below
(VIN_OV_FAULT_LIMIT-
fault_vin_fault_hyst). The samples
above VIN_OV_FAULT_LIMIT need
not be consecutive but a single
sample below
(VIN_OV_FAULT_LIMIT-
