12ASX2 datasheet(66/147 Pages) INFINEON

66 / 147 page

EiceDRIVER

™ SIL

1EDI2002AS

Protection and Diagnostics

Datasheet

Rev. 3.1, 2015-07-30

Hardware Description

3.3

Protection Functions: Category B

3.3.1

Power Supply Voltage Monitoring

The Power Supply Voltage Monitoring functionality is summarized in Table 3-6:

In order to ensure a correct switching of the IGBT, the device supports an undervoltage lockout (UVLO) function

for V

CC1, VCC2, VEE2, and an overvoltage lockout (OVLO) function for VCC2 and VEE2 (Figure 3-5).

Figure 3-5 Power Supply Supervision Function

Table 3-6

Power Supply Voltage Monitoring Overview

Parameter

Short Description

Function

Monitoring of V

CC1, VCC2, VEE2.

Periodicity

Continuous.

Action in case of failure event

1. Emergency (Regular) Turn-off Sequence.

2. Error Flag PER.RST1 (UVLO1) or SER.UVLO2ER or OVLO2ER or

UVLO3ER or OVLO3ER) is set.

3. Assertion of signal NRST/RDY (UVLO1 only) or NFLTB.

Programmability

Yes (OVLO3 only).

In-System Testability

Yes (see Chapter 3.5.8).

UVLO3

OVLO3

UVLO2

OVLO2

UVLO1

VUVLO1L

VUVLO1H

VUVLO2L

VUVLO2H

VOVLO2L

VOVLO2H

VUVLO3L

VUVLO3H

VOVLO3L

VOVLO3H

Valid VCC2 range to

enable the device

Valid VCC2

operating range

Valid VEE2

operating range

Valid VEE2 range to

enable the device

Valid VCC1

operating range

Valid VCC1 range to

enable the device

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