TLD7002-16ES
Datasheet
7 Load Diagnostic
Table 23
(continued) List of fault sources for the ERRn reporting
Fault source group
Fault
Fault
Short description
Long description
Internal faults
UV&OV
IREF
OTP_CHECKSUM
BIST_FAIL
GPIN_SHORT
under/overvoltage of internal supply
reference current out of range
OTP checksum error
BIST failed
GPIN short
7.20
HSLI diagnostic flag handling
Application shall take care to clear the diagnostic flags during operation in order to allow new fault events detection.
List of Output status and READ_OST flags and the relation with HWCR frame
Output status/READ_OST fields
Clearable by HWCR
Need HWCR to restart the output if the failure
disappears
OL
YES
NO
SLS
YES
NO
OVLD
YES
Based on thermal overload retry strategy
OUT_SHORT_WRN
DC_WRN
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
CUR_WRN
YES
VFWD_WRN
OUT_STAT
YES
NO (since not latched)
VLED_VS_UV
GPIN_WRN
YES
YES
FAULT Internal supply UV/OV
OTP checksum warning
Internal BIST error
NO (since not latched)
YES
YES
YES
Internal reference current
warning
GPIN short
YES
YES
The FAULT Flag forces the device in INIT or FAIL OFF based on fault type so it may need HWCR or 6 consecutive HSLI
sync break frames to move the device in to an active condition.
When HSLI is not available to provide an HWCR (e.g. GPIN direct drive application), special care has to be taken in
order to reduce FAULT events.
A diode and a 470nF capacitor applied on VS reduce the risk of internal faults due to transient on the VS supply pin.
Datasheet
44
Rev.1.00
2022-05-03
INFINEON [ Infineon ]
