1EDI2002AS_15 Datasheet, PDF (64/147 Pages) Infineon Technologies AG – Single Channel Isolated Driver for Inverter Systems AD Step

EiceDRIVER™ SIL
1EDI2002AS
Protection and Diagnostics
3.2.3 External Enable
The External Enable functionality is summarized in Table 3-4:
Table 3-4 External Enable Function Overview
Parameter
Short Description
Function
External Enable.
Periodicity
Invalid signal on EN/FEN pin.
Action in case of failure event ^{1. Emergency (Regular) Turn-off Sequence.}
2. Error Flag PER.ENER is set.
3. Assertion of signal NFLTA.
Programmability
No.
In-System Testability
Yes.
The functionality of the signal at pin EN/FEN is given in Chapter 2.4.8. In case of a Valid-to-Invalid signal
transition, an error is detected. In this case, an Emergency (Regular) turn-off sequence is initiated, bit PER.ENER
is set and a fault notification is issued on pin NFLTA (in case of an OPM transition the state machine - see
Chapter 2.4.7). The current validity state of the signal at pin EN/FEN can be read on bit PSTAT2.ENVAL.
This function can be tested by generating an invalid signal on pin EN/FEN and verifying that the actions done by
the device correspond to the expected behavior.
Datasheet
64
Hardware Description
Rev. 3.1, 2015-07-30