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12ASX2 Datasheet(PDF) 34 Page - Infineon Technologies AG |
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12ASX2 Datasheet(HTML) 34 Page - Infineon Technologies AG |
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34 / 147 page  EiceDRIVER ™ SIL 1EDI2002AS Functional Description Datasheet 34 Rev. 3.1, 2015-07-30 Hardware Description 2.4.5 Operating Modes 2.4.5.1 General Operation At any time, the driver can be in one out of seven possible operating modes: • OPM0: Default Mode (default after reset, device is disabled). • OPM1: Error Mode (reached after Event Class B, device is disabled). • OPM2: Configuration Mode (device is disabled, configuration of the device can be modified). • OPM3: Configured Mode (device is configured and disabled). • OPM4: Active Mode (normal operation). • OPM5: Verification mode (intrusive diagnostic functions can be triggered). • OPM6: Weak active mode (the device can be turned on but with restrictions) The current active mode of the device is given by bit field SSTAT.OPM. The concept of the device is based on the following general ideas: • The driver can only switch the IGBT on when OPM4 mode is active (exception: weak-turn on in OPM6). • Starting from Mode OPM0 or OPM1, the Active Mode OPM4 can only be activated through a dedicated SPI command sequence and the activation of the hardware signal EN/FEN. As a result, the probability that the device goes to OPM4 mode due to random signals is negligible. • Differentiations of errors: different classes of errors are defined, leading to different behavior of the device. The state diagram for the operating modes is given in Figure 2-11: Figure 2-11 Operating Modes State Diagram OPM0 Default Event Class B OPM5 Verification OPM4 Active Reset Event Event Class A All Reset Events EN Valid Transition OPM2 Configuration OPM3 Configured OPM6 Weak Active Event Class A EN Valid Transition OPM1 Default Event Class BReset Event Event Class BReset Event Event Class BReset Event All Event Class B Event Class B CLRS set Reset Event Event Class B Reset Event |
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