1EDI2004AS View Datasheet(PDF) - Infineon Technologies
Part Name
Description
MFG CO.
'1EDI2004AS' PDF : 138 Pages View PDF
EiceDRIVERTM SIL
1EDI2004AS
Functional Description
2.4.5.2 Definitions
2.4.5.2.1 Events and State Transitions
The transitions from one state to the other are based on “events” and / or SPI commands. The following
classification is chosen for defining the events.
Events Class A
The following (exhaustive) list of events are defined as Events Class A:
• Occurrence of a DESAT event (leads to a safe turn-off sequence).
• Occurrence of an OCP event (leads to a safe turn-off sequence).
• Valid to Invalid transition on EN signal (leads to a regular turn-off sequence).
When an Event Class A occurs, the output stage initiates either a safe turn-off sequence (DESAT, OCP) or a
regular turn-off sequence (EN event). The event is notified via an error bit in the corresponding register.
Note:
Contrarily to a reset event, an Event Class A does not affect the contents of the configuration
registers.
When an Event Class A occurs, the device may change its operating mode depending on which mode is active
when the event occurs:
• If it was in OPM4, it goes in OPM3.
• If it was in OPM6, it goes in OPM5.
In all other cases, the OPM is unaffected. A state transition due to an Event Class A leads to the activation of
signal NFLTA. If no state transition occurs (if for example the device was not in OPM4 or OPM6), NFLTA is not
activated.
Events Class B
The following (exhaustive) list of events are defined as Events Class B:
• Occurrence of a UVLO2 event.
• Occurrence of a OVLO2 event.
• Occurrence of a UVLO3 event. (configurable)
• Occurrence of a OVLO3 event. (configurable)
• Verification Mode Time Out Error
Note:
Every class B event with state transition triggers a notification via NFLTB signal. But not all
notifications on NFLTB signal are class B events (e.g. failures, resets, also see Table 14, Table 15).
When an Event Class B occurs, the output stage initiates a regular turn-off sequence. The event is notified via
an error bit in the corresponding register and (possibly) via the signal NFLTB.
Note:
Events Class B may affect the contents of the configuration registers.
When an Event Class B occurs, the device may change its operating mode depending on which mode is active
when the event occurs: if it was not in OPM1, it goes to OPM1. It is unaffected otherwise
Data Sheet
32
Rev. 2.0
2019-01-16
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