Datasheet

LTC2974
59
2974fc
For more information www.linear.com/LTC2974
MFR_FAULTB0_PROPAGATE and MFR_FAULTB1_PROPAGATE
These manufacturer specific commands enable channels that have faulted off to propagate that state to the appro-
priate fault pin. MFR_FAULTB0_PROPAGATE allows any channel’s faulted off state to propagate to the FAULTB0 pin.
MFR_F
AULTB1_PROPAGA
TE allows any channel’s faulted off state to propagate to the FAULTB1 pin.
Note that pulling a fault pin low will have no effect for channels that have MFR_FAULTBn_RESPONSE set to 0. The
channel continues operation without interruption. This fault response is called Ignore (0x0) in LTpowerPlay.
MFR_FAULTB0_PROPAGATE Data Contents
BIT(S) SYMBOL OPERATION
b[7:1] Reserved Don’t care. Always returns 0.
b[0] Mfr_faultb0_propagate Enable fault propagation.
0: Channel’s faulted off state does not assert FAULTB0 low.
1 :Channel’s faulted off state asserts FAULTB0 low.
MFR_FAULTB1_PROPAGATE Data Contents
BIT(S) SYMBOL OPERATION
b[7:1] Reserved Don’t care. Always returns 0.
b[0] Mfr_faultb1_propagate Enable fault propagation.
0: Channel’s faulted off state does not assert FAULTB1 low.
1: Channel’s faulted off state asserts FAULTB1 low.
pMbus coMManD DescripTion
SHARED EXTERNAL FAULTS
COMMAND NAME
CMD
CODE DESCRIPTION TYPE PAGED FORMAT UNITS EEPROM
DEFAULT
VALUE
REF
PAGE
MFR_FAULTB0_PROPAGATE 0xD2 Configuration that determines if a channels
faulted off state is propagated to the
FAULTB0 pin.
R/W Byte Y Reg Y 0x00
59
MFR_FAULTB1_PROPAGATE 0xD3 Configuration that determines if a channels
faulted off state is propagated to the
FAULTB1 pin.
R/W Byte Y Reg Y 0x00
59
MFR_FAULTB0_RESPONSE 0xD5 Action to be taken by the device when the
FAULTB0 pin is asserted low.
R/W Byte N Reg Y 0x00
60
MFR_FAULTB1_RESPONSE 0xD6 Action to be taken by the device when the
FAULTB1 pin is asserted low.
R/W Byte N Reg Y 0x00
60