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ADP1055ACPZ-R7 Folha de dados(PDF) 77 Page - Analog Devices

Nome de Peças ADP1055ACPZ-R7
Descrição Electrónicos  Digital Controller for Power Supply Applications with PMBus Interface
PDF  140 Pages
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
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ADP1055ACPZ-R7 Folha de dados(HTML) 77 Page - Analog Devices

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Data Sheet
ADP1055
Rev. A | Page 77 of 140
STATUS_WORD
The STATUS_WORD register returns the upper and lower bytes of the STATUS_WORD command. A value of 1 in this command
indicates that a fault has occurred.
Table 72. Register 0x79—STATUS_WORD
Bits
Bit Name
R/W
Description
15
VOUT
R
Output voltage fault or warning. A bit in STATUS_VOUT is set.
14
IOUT/POUT
R
Output current or output power fault or warning. A bit in STATUS_IOUT is set.
13
INPUT
R
Input voltage, input current, or input power fault or warning. A bit in STATUS_INPUT is set.
12
MFR
R
Manufacturer-specific fault or warning.
11
POWER_GOOD
R
POWER_GOOD is a negation of POWER_GOOD, which means that the output power is not good.
This bit is set when the sensed VOUT is less than the limit programmed in the POWER_GOOD_OFF
command.
10
FANS
R
Not supported.
9
OTHER
R
A bit in STATUS_OTHER is set.
8
UNKNOWN
R
A fault or warning not listed in STATUS_WORD[15:1].
7
BUSY
R/W
This bit is asserted if the device is busy and unable to respond.
6
POWER_OFF
R
This bit is asserted if the unit is not providing power to the output.
5
VOUT_OV_FAULT
R
An output overvoltage fault has occurred.
4
IOUT_OC_FAULT
R
An output overcurrent fault has occurred.
3
VIN_UV_FAULT
R
An input undervoltage fault has occurred.
2
TEMPERATURE
R
A temperature fault or warning has occurred.
1
CML
R
A communications, memory, or logic fault has occurred.
0
NONE_OF_THE_ABOVE
R
A fault or warning not listed in Bits[7:1] has occurred.
STATUS_VOUT
The STATUS_VOUT register returns the status of the output voltage. A value of 1 in this command indicates that a fault has occurred.
Table 73. Register 0x7A—STATUS_VOUT
Bits
Bit Name
R/W
Description
7
VOUT_OV_FAULT
R/W
An output overvoltage fault has occurred.
6
VOUT_OV_WARN
R/W
An output overvoltage warning has occurred.
5
VOUT_UV_WARN
R/W
An output undervoltage warning has occurred.
4
VOUT_UV_FAULT
R/W
An output undervoltage fault has occurred.
3
VOUT_MAX_WARN
R/W
An attempt was made to set the output voltage to a value greater than the VOUT_MAX command.
2
TON_MAX_FAULT
R/W
The device took too long to power up without reaching the VOUT_UV fault limit.
1
TOFF_MAX_WARN
R/W
The device took too long to power down to 12.5% of its output voltage.
0
VOUT_TRACKING_ERR
R
Not supported.
STATUS_IOUT
The STATUS_IOUT register returns the status of the output current. A value of 1 in this command indicates that a fault has occurred.
Table 74. Register 0x7B—STATUS_IOUT
Bits
Bit Name
R/W
Description
7
IOUT_OC_FAULT
R/W
An output overcurrent fault has occurred.
6
IOUT_OC_LV_FAULT
R/W
An output overcurrent fault and a low voltage fault have occurred.
5
IOUT_OC_WARN
R/W
An output overcurrent warning has occurred.
4
IOUT_UC_FAULT
R/W
An output undercurrent fault has occurred.
3
ISHARE_FAULT
R/W
A current sharing fault has occurred.
2
PLIM_MODE
R
Not supported.
1
POUT_OP_FAULT
R/W
An output overpower fault has occurred.
0
POUT_OP_WARN
R
Not supported.



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