SLVSDD7B August 2016 – March 2022 UCD9090A
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
GPI Fault Enable must be set to enable this feature. When set, if there is no fault on a Fault Bus, the Fault Pin is digital input pin and listen to the Fault Bus. When one or multiple UCD90160A devices detect a rail fault (see Table 7-7), the corresponding Fault Pin is turned into active driven low state, pulling down the Fault Bus and informing all other UCD90160A devices of the corresponding fault. This way, a coordinated action can be taken across multiple devices. After the fault is cleared, the state of the Fault Pin is turned back to an input pin.
Events | Description |
---|---|
RESEQUENCE_ERROR | Rail fails to resequence |
SEQ_ON_TIMEOUT | Rail fails to meeting sequence on dependency in predefined period |
SEQ_OFF_TIMEOUT | Rail fails to meeting sequence on dependency in predefined period |
OT_FAULT | Temperature Rail has over temperature |
IOUT_UC_FAULT | Current Rail is below UC threshold |
IOUT_OC_FAULT | Current Rail is over OC threshold |
VOUT_UV_FAULT | Voltage Rail is under UV threshold |
VOUT_OV_FAULT | Voltage Rail is over OV threshold |
TON_MAX_FAULT | Voltage rail fails to reach power good threshold in predefined period. |