Datasheet

LTC2978A
40
2978afa
For more information www.linear.com/LTC2978A
STATUS_INPUT
The STATUS_INPUT command returns the summary of the V
IN
faults or warnings which have occurred, as shown in
the following table:
STATUS_INPUT Data Contents
BIT(S) SYMBOL OPERATION
b[7] Status_input_ov_fault V
IN
Overvoltage fault
b[6] Status_input_ov_warn V
IN
Overvoltage warning
b[5] Status_input_uv_warn V
IN
Undervoltage warning
b[4] Status_input_uv_fault V
IN
Undervoltage fault
b[3] Status_input_off Unit is off for insufficient input voltage.
b[2] I
IN
overcurrent fault Not supported. Always returns 0.
b[1] I
IN
overcurrent warn Not supported. Always returns 0.
b[0] PIN overpower warn Not supported. Always returns 0.
STATUS_TEMPERATURE
The STATUS_TEMPERATURE command returns the summary of the temperature faults or warnings which have oc-
curred, as shown in the following table:
STATUS_TEMPERATURE Data Contents
Bit(s) Symbol Operation
b[7] Status_temperature_ot_fault Overtemperature fault.
b[6] Status_temperature_ot_warn Overtemperature warning.
b[5] Status_temperature_ut_warn Undertemperature warning.
b[4] Status_temperature_ut_fault Undertemperature fault.
b[3] Reserved Reserved. Always returns 0.
b[2] Reserved Reserved. Always returns 0.
b[1] Reserved Reserved. Always returns 0.
b[0] Reserved Reserved. Always returns 0.
PMBus COMMAND DESCRIPTION