lm5066pmhx National Semiconductor Corporation, lm5066pmhx Datasheet - Page 33

• Manufacturer Part Number: lm5066pmhx
• Description: High Voltage System Power Management And Protection Ic With Pmbus
• Manufacturer: National Semiconductor Corporation

MFR_REVISION (9Bh)
The MFR_REVISION command is a standard PMBus com-
mand that returns the revision level of the part. To read the
MFR_REVISION, use the PMBus block read protocol.
Byte
0
1
2
Byte
0
1
2
3
4
5
6
7
8
TABLE 21. MFR_REVISION Register
TABLE 20. MFR_MODEL Register
Name
Number of bytes
MFR ID-1
MFR ID-2
Number of bytes
MFR ID-1
MFR ID-2
MFR ID-3
MFR ID-4
MFR ID-5
MFR ID-6
MFR ID-7
MFR ID-8
Name
Value
02h
41h ‘A’
41h ‘A’
4Dh ‘M’
4Ch ‘L’
35h ‘5’
30h ‘0’
36h ‘6’
36h ‘6’
Value
08h
00h
00h
33
Manufacturer Specific PMBus™
Commands
MFR_SPECIFIC_00: READ_VAUX (D0h)
The READ_VAUX command will report the 12-bit ADC mea-
sured auxiliary voltage. Voltages greater than or equal to
2.97V to ground will be reported at plus full scale (0FFFh).
Voltages less than or equal to 0V referenced to ground will be
reported as 0 (0000h). To read data from the READ_VAUX
command, use the PMBus Read Word protocol.
MFR_SPECIFIC_01: MFR_READ_IIN (D1h)
The MFR_READ_IIN command will report the 12-bit ADC
measured current sense voltage. To read data from the
MFR_READ_IIN command, use the PMBus Read Word pro-
tocol. Reading this register should use the coefficients shown
in the Telemetry and Warning Conversion Coefficients Table.
Please see the section on coefficient calculations to calculate
the values to use.
MFR_SPECIFIC_02: MFR_READ_PIN (D2h)
The MFR_READ_PIN command will report the upper 12 bits
of the VIN x IIN product as measured by the 12-bit ADC. To
read data from the MFR_READ_PIN command, use the PM-
Bus Read Word protocol. Reading this register should use the
coefficients shown in the Telemetry and Warning Conversion
Coefficients Table. Please see the section on coefficient cal-
culations to calculate the values to use.
MFR_SPECIFIC_03: MFR_IN_OC_WARN_LIMIT (D3h)
The MFR_IIN_OC_WARN_LIMIT PMBus command sets the
input over-current warning threshold. In the event that the in-
put current rises above the value set in this register, the IIN
Over-current flags are set in the respective registers and the
SMBA is asserted. To access the MFR_IIN_OC_WARN_LIM-
IT register, use the PMBus Read/Write Word protocol. Read-
ing/writing to this register should use the coefficients shown
in the Telemetry and Warning Conversion Coefficients Table.
Value
0h – 0FFFh
Value
0h – 0FFFh
Value
0h – 0FFFh
TABLE 24. MFR_READ_PIN Register
TABLE 23. MFR_READ_IIN Register
TABLE 22. READ_VAUX Register
Meaning
Measured value
for VAUX input
Meaning
Measured value
for input current
sense voltage
Meaning
Value for input
current x input
voltage
Default
0000h
Default
0000h
Default
0000h
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