LTC2978C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2978C' PDF : 64 Pages View PDF
LTC2978
PMBus Command summary
Summary Table
COMMAND NAME
STATUS_INPUT
STATUS_TEMPERATURE
STATUS_CML
STATUS_MFR_SPECIFIC
READ_VIN
READ_VOUT
READ_TEMPERATURE_1
PMBUS_REVISION
MFR_CONFIG_LTC2978
MFR_CONFIG_ALL_
LTC2978
MFR_FAULTBz0_
PROPAGATE
MFR_FAULTBz1_
PROPAGATE
MFR_PWRGD_EN
MFR_FAULTB00_
RESPONSE
MFR_FAULTB01_
RESPONSE
MFR_FAULTB10_
RESPONSE
MFR_FAULTB11_
RESPONSE
MFR_VINEN_OV_FAULT_
RESPONSE
MFR_VINEN_UV_FAULT_
RESPONSE
MFR_RETRY_DELAY
MFR_RESTART_DELAY
MFR_VOUT_PEAK
MFR_VIN_PEAK
MFR_TEMPERATURE_
PEAK
CMD
CODE DESCRIPTION
0x7C Input voltage fault and warning status
measured at VIN_SNS pin.
0x7D Temperature fault and warning status for
READ_TEMPERATURE_1.
0x7E Communication and memory fault and
warning status.
0x80 Manufacturer specific fault and state
information.
0x88 Input voltage measured at VIN_SNS pin.
0x8B DC/DC converter output voltage.
0x8D Internal junction temperature.
0x98 PMBus revision supported by this device.
Current revision is 1.1.
0xD0 Configuration bits that are channel
specific.
0xD1 Configuration bits that are common to all
pages.
0xD2 Configuration that determines if a
channel’s faulted off state is propagated
to the FAULTB00 and FAULTB10 pins.
0xD3 Manufacturer configuration that
Configuration that determines if a
channel’s faulted off state is propagated
to the FAULTB01 and FAULTB11 pins.
0xD4 Configuration for mapping PWRGD and
WDI/RESETB status to the PWRGD pin.
0xD5 Action to be taken by the device when the
FAULTB00 pin is asserted low.
0xD6 Action to be taken by the device when the
FAULTB01 pin is asserted low.
0xD7 Action to be taken by the device when the
FAULTB10 pin is asserted low.
0xD8 Action to be taken by the device when the
FAULTB11 pin is asserted low.
0xD9 Action to be taken by the VIN_EN pin in
response to a VOUT_OV_FAULT
0xDA Action to be taken by the VIN_EN pin in
response to a VOUT_UV_FAULT
0xDB Retry interval during FAULT retry mode.
0xDC Delay from actual CONTROL active edge
to virtual CONTROL active edge.
0xDD Maximum measured value of READ_
VOUT.
0xDE Maximum measured value of READ_VIN.
0xDF Maximum measured value of READ_
TEMPERATURE_1.
TYPE
R Byte
DATA
PAGED FORMAT UNITS EEPROM
N
Reg
R Byte N
Reg
R Byte N
Reg
R Byte
Y
Reg
R Word N
L11
V
R Word Y
L16
V
R Word N
L11
°C
R Byte N
Reg
R/W Word Y
Reg
Y
R/W Byte N
Reg
Y
R/W Byte Y
Reg
Y
R/W Byte Y
Reg
Y
R/W Word N
Reg
Y
R/W Byte N
Reg
Y
R/W Byte N
Reg
Y
R/W Byte N
Reg
Y
R/W Byte N
Reg
Y
R/W Byte N
Reg
Y
R/W Byte N
Reg
Y
R/W Word N
L11 ms
Y
R/W Word N
L11 ms
Y
R Word Y
L16
V
R Word N
R Word N
L11
V
L11
°C
DEFAULT
VALUE
FLOAT
HEX
NA
NA
NA
NA
NA
NA
NA
0x11
0x0080
0x7B
0x00
0x00
0x0000
0x00
0x00
0x00
0x00
0x00
0x00
200.0
0xF320
400.0
0xFB20
NA
NA
NA
REF
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2978fd
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