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ISL8272MAIRZ Datasheet(PDF) 39 Page - Renesas Technology Corp

Part # ISL8272MAIRZ
Description  50A Digital DC/DC PMBus Power Module
PDF  59 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL8272MAIRZ Datasheet(HTML) 39 Page - Renesas Technology Corp

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ISL8272M
FN8670 Rev.5.00
Page 39 of 59
Nov 8, 2017
STATUS_WORD (79h)
Definition: Returns two bytes of information with a summary of the unit's fault condition. Based on the information in these bytes, the
host can get more information by reading the appropriate status registers. The low byte of the STATUS_WORD is the same register as
the STATUS_BYTE (78h) command.
Data Length in Bytes: 2
Data Format: BIT
Type: Read-only
Default Value: 0000h
Units: N/A
STATUS_VOUT (7Ah)
Definition: Returns one data byte with the status of the output voltage.
Data Length in Bytes: 1
Data Format: BIT
Type: Read-only
Default Value: 00h
Units: N/A
BIT NUMBER
STATUS BIT NAME
MEANING
15
VOUT
An output voltage fault or warning has occurred.
14
IOUT/POUT
An output current or output power fault or warning has occurred.
13
INPUT
An input voltage, input current, or input power fault or warning has occurred.
12
MFG_SPECIFIC
A manufacturer specific fault or warning has occurred.
11
POWER_GOOD#
The POWER_GOOD signal, if present, is negated.
10
FANS
A fan or airflow fault or warning has occurred.
9
OTHER
A bit in STATUS_OTHER is set.
8
UNKNOWN
A fault type not given in bits 15:1 of the STATUS_WORD has been detected.
7
BUSY
A fault was declared because the device was busy and unable to respond.
6
OFF
This bit is asserted if the unit is not providing power to the output, regardless of
the reason, including simply not being enabled.
5
VOUT_OV_FAULT
An output overvoltage fault has occurred.
4
IOUT_OC_FAULT
An output overcurrent fault has occurred.
3
VIN_UV_FAULT
An input undervoltage fault has occurred.
2
TEMPERATURE
A temperature fault or warning has occurred.
1
CML
A communications, memory or logic fault has occurred.
0
NONE OF THE ABOVE
A fault or warning not listed in Bits 7:1 has occurred.
BIT NUMBER
STATUS BIT NAME
MEANING
7
VOUT_OV_FAULT
Indicates an output overvoltage fault.
6
VOUT_OV_WARNING
Indicates an output overvoltage warning.
5
VOUT_UV_WARNING
Indicates an output undervoltage warning.
4
VOUT_UV_FAULT
Indicates an output undervoltage fault.
3:0
N/A
These bits are not used.



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