FGSD12SR6003A Datasheet, PDF (18/41 Pages) List of Unclassifed Manufacturers – 3-14.4Vdc Input, 3A, 0.45-5.5Vdc Output

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FGSD12SR6003*A
3-14.4Vdc Input, 3A, 0.45-5.5Vdc Output
for two’s complement representation of the mantissa,
with the 11^th bit fixed at zero since only positive
numbers are valid.
During module manufacture, offset and gain
correction values are written into the non-volatile
memory of the module. The command
VIN_CAL_OFFSET can be used to read and/or write
the offset - two bytes consisting of a five-bit exponent
(fixed at -5) and a 11-bit mantissa in two’s
complement format. The allowed range for this offset
correction is -2 to 1.968V, and the resolution is
32mV. The command VIN_CAL_GAIN can be used
to read and/or write the gain correction - two bytes
consisting of a five-bit exponent (fixed at -8) and a
11-bit mantissa. The range of this correction factor is
-0.125V to +0.121V, with a resolution of 0.004V. The
corrected output voltage reading is then given by:
V_IN (Final ) 
[V_IN (Initial )  (1VIN _ CAL _ GAIN )]
 VIN _ CAL _ OFFSET
Reading the Status of the Module using the
PMBus
The module supports a number of status information
commands implemented in PMBus. However, not all
features are supported in these commands. A 1 in
the bit position indicates the fault that is flagged.
STATUS_BYTE: Returns one byte of information
with a summary of the most critical device faults.
Bit
Position
7
6
5
4
3
2
Flag
X
OFF
VOUT Overvoltage
IOUT Overcurrent
VIN Undervoltage
Temperature
Default
Value
0
0
0
0
0
0
1
CML (Comm. Memory Fault)
0
0
None of the above
0
Preliminary Data Sheet
STATUS_WORD: Returns two bytes of information
with a summary of the module’s fault/warning
conditions.
Low Byte
Bit
Position
7
Flag
X
Default
Value
0
6
OFF
0
5
VOUT Overvoltage
0
4
IOUT Overcurrent
0
3
VIN Undervoltage
0
2
Temperature
0
1
CML (Comm. Memory Fault) 0
0
None of the above
0
High Byte
Bit
Position
7
Flag
VOUT fault or warning
Default
Value
0
6
IOUT fault or warning
0
5
X
0
4
X
0
3 POWER_GOOD# (is negated) 0
2
X
0
1
X
0
0
X
0
STATUS_VOUT: Returns one byte of information
relating to the status of the module’s output voltage
related faults.
Bit
Position
7
6
5
4
3
2
1
0
Flag
VOUT OV Fault
X
X
VOUT UV Fault
X
X
X
X
Default
Value
0
0
0
0
0
0
0
0
STATUS_IOUT: Returns one byte of information
relating to the status of the module’s output voltage
related faults.
Bit
Position
7
6
5
4
3
2
1
0
Flag
IOUT OC Fault
X
IOUT OC Warning
X
X
X
X
X
Default
Value
0
0
0
0
0
0
0
0
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Ver 1.6 May. 8, 2013