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1EDI2004AS View Datasheet(PDF) - Infineon Technologies

Part Name
Description
MFG CO.
1EDI2004AS
Infineon
Infineon Technologies Infineon
'1EDI2004AS' PDF : 138 Pages View PDF
EiceDRIVERTM SIL
1EDI2004AS
Protection and Diagnostics
3
Protection and Diagnostics
This section can describes the safety relevant functions implemented in the 1EDI2004AS.
3.1
Supervision Overview
The 1EDI2004AS driver provides extended supervision functions, in order to achieve ASIL requirements on
system level. Table 18 gives an overview of the implemented functions.
Table 18 Safety Related Functions
Protection Feature Description
Cate- Comments
gory
DESAT
Monitoring of the collector-emitter voltage of the A
IGBT in ON state.
See Chapter 3.2.1
OCP
Monitoring of the current on the IGBT’s auxiliary A See Chapter 3.2.2
emitter path.
External Enable
Fast deactivation via an external Enable signal on the A
primary.
See Chapter 3.2.3
Power Supply
Monitoring
STP
Under Voltage Lock-Out function on VCC1, VCC2 and VEE2; B
Over Voltage Lock-Out on VEE2 and VCC2.
Shoot Through Protection.
C
See Chapter 3.3.1
See Chapter 3.4.1
Gate Monitoring
Monitoring of the GATE voltage
C See Chapter 3.4.2
SPI Error Detection SPI Error Detection.
C See Chapter 3.4.3
Active Short Circuit
Support
VCC2 not valid error notification
C See Chapter 3.4.4
DESAT Time Out
Desat Blanking Time Selection timeout.
C See Chapter 3.2.1
OVLO2 Mode Timeout OVLO2 Mode timeout.
C See Chapter 3.3.1
WTO
Weak Turn-On Functionality
D See Chapter 3.5.2
DESAT Supervision
OCP Supervision
Power Supply
Monitoring
Supervision
Internal Clock
Supervision
TTOFF
SPI Communication
Overvoltage
robustness
Supervision of the DESAT function during application D
life time.
See Chapter 3.5.3,
Chapter 3.5.4 and
Chapter 3.5.5
Supervision of the OCP function during application C & D See Chapter 3.5.6,
life time.
Chapter 3.5.7 and
Chapter 3.2.2
Supervision of the OVLO / UVLO function during
application life time.
D See Chapter 3.5.8
Plausibility check of the frequency of the internal D
oscillator.
Two Level Turn-Off
E
SPI Communication (using register PRW).
E
Robustness against transient overvoltage on power E
supply.
See Chapter 3.5.9
See Chapter 2.4.6
See Chapter 4.1
See Chapter 5.2
From the conceptual point of view, the protection functions can be clustered into five main categories.
Data Sheet
54
Rev. 2.0
2019-01-16
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