BCM3814x60E15A3yzz
READ_K_FACTOR Command (D1h)
DISABLE_FAULT Command (D7h)
If PAGE data byte is equal to (01h), command will return the BCM’s
K factor in the following format:
DISABLE_FAULT
MSB
LSB
K_FACTORACTUAL = K_FACTORREPORTED • 2-16(V/V)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
IOUT_OC_FAULT
Reserved
The K factor is defined in a BCM to represent the ratio of the
transformer winding and hence is equal to VLO / VHI.
VIN_OV_FAULT
Reserved
Reserved
Reserved
Reserved
Reserved
VIN_UV_FAULT
Reserved
READ_BCM_ROUT Command (D4h)
If PAGE data byte is equal to (01h), command will return the BCM’s
LO side resistance in the following format:
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
0
1
0
0
0
0
0
0
0
0
1
0
1
0
0
0
b
BCM_RLO_ACTUAL = BCM_RLO_REPORTED • 10-5(Ω)
Unsupported bits are indicated above. A one indicates that the
supervisory fault associated with the asserted bit is disabled.
SET_ALL_THRESHOLDS Command (D5h)
The values of this register block are set in non-volatile memory and
can only be written when the BCM is disabled.
SET_ALL_THRESHOLDS_BLOCK (6 Bytes)
This command allows the host to disable the supervisory faults
and respective statuses. It does not disable the powertrain analog
protections or warnings with respect to the set limits in the
SET_ALL_THRESHOLDS Command.
IOUT_OC_WARN_ LIMIT
IOUT_OC_FAULT_ LIMIT
VIN_OV_WARN_ LIMIT
The HI side undervoltage can only be disabled to a pre-set low
limit as specified in the Monitored Telemetry Functional
Reporting Range.
VIN_OV_FAULT_ LIMIT
OT_WARN_LIMIT
OT_FAULT_LIMIT
5
4
3
2
1
0
h
64 64 64 64 64 64
The values of this register block are set in non-volatile memory and
can only be written when the BCM is disabled.
This command provides a convenient way to configure all of the
limits, or any combination of limits described previously using
one command.
VHI overvoltage, overcurrent and overtemperature values are all set
to 100% of the specified supervisory limits by default and can only
be set to a lower percentage.
To leave a particular threshold unchanged, set the corresponding
threshold data byte to a value greater than (64h).
BCM® in a VIA Package
Page 34 of 41
Rev 2.0
02/2018
VICOR [ VICOR CORPORATION ]
