 English |
|
|
|
|
|
|
|
| TLE75080-EMH Datasheet, PDF (53/80 Pages) Infineon Technologies AG – SPI Driver for Enhanced Relay Control | |||
| |||
| ◁ |
TLE75080-EMH
Diagnosis
VS High-side
Channel
VOUT > VOUT(OL) Ã DIAG_OSM.OUTn = â1"
VSn
VDS
DIAG_OSM.OUTn
IOL
VOU T( OL )
GND
OUTn VOUTn
IOL
ROL
OutStatMon_HS.emf
Figure 23 Output Status Monitor - concept
In Standard Diagnosis the bit OLOFF represents the OR combination of all DIAG_OSM.OUTn bits for all channels
in OFF state which have the corresponding current source IOL activated.
9.3
Open Load at ON
Each channel has the possibility of Open Load at ON diagnosis, which can be controlled programming
DIAG_OLONEN.MUX bits. By default after a reset Open Load at ON diagnosis is not active. The device compares
IL_Sn with IL(OL) and sets the DIAG_OLON.OUTn accordingly:
⢠IL_Sn < IL(OL) â DIAG_OLON.OUTn = â1â if VSn > VOUT(OL)
9.3.1 Open Load at ON - direct channel diagnosis
When DIAG_OLONEN.MUX bits are programmed with a value corresponding to a channel (0000B â 0111B), the
internal multiplexer checks for Open Load at ON condition on the selected channel. It is recommended that the
channel is ON for at least tON before activating the diagnosis. After a time tOLONSET the corresponding
DIAG_OLON.OUTn bit for the selected channel is available. All the other bits in the DIAG_OLON register are set
to default (â0Bâ). The bits are updated every time the register is read.
When a channel is selected, the corresponding DIAG_OLON.OUTn bit content is mirrored also in the Standard
Diagnosis (bit OLON). In case of several register readouts in sequence the register content is updated at every read
request from micro-controller. See Figure 24 for further details.
Data Sheet
53
Rev. 1.0, 2016-06-22
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese