TLE75080-EMH Datasheet, PDF (56/80 Pages) Infineon Technologies AG – SPI Driver for Enhanced Relay Control

TLE75080-EMH
Diagnosis
DIAG_OLONEN.MUX 1111
PWM Generator
Multiplexer switch
for diagnosis
(not allowed)
t_OLONSW
t_{ONMA X}
1010
t
Allowed
(not allowed)
t_{OL ON SW}
t_{ONMA X}
t
Allowed
t
DIAG_OLON.OUTn
t_OLONSW
(updated)
t
DIAG_OLON.OUTn+1
t_{OL ON SW}
(updated)
t
DIAG_OLON.OUTn+2
t_{OLON SW}
(updated)
t
DIAG_OLON.OUTn+3
(updated)
t_{OLON SW}
t
OpenLoadON_loop_int.emf
Figure 26 Open Load at ON timings (diagnosis loop - channels driven by internal PWM Generators
9.3.3 OLON bit
The OLON bit can assume the following values:
• “0” = no Open Load at ON state detected, or the channel is OFF when the diagnosis is performed
• “1” = Open Load at ON state detected
According to the setting of DIAG_OLONEN.MUX different information are reported in the Standard Diagnosis.
• DIAG_OLONEN.MUX set to 0000_B → 0111_B: The OLON bit shows the Open Load at ON state diagnosis
performed on the selected channel. The information is updated at every Standard Diagnosis readout.
• DIAG_OLONEN.MUX set to 1010_B: the OLON bit shows the “OR” combination of all bits in DIAG_OLON register.
The information is updated while the diagnosis loop is running.
• DIAG_OLONEN.MUX set to 1111_B: the OLON bit shows the result of the latest diagnosis loop performed. It is
necessary to start another diagnosis loop to update the information.
• DIAG_OLONEN.MUX set to any other value: The OLON bit is set to “0”. These values of DIAG_OLONEN.MUX
bits are reserved and should not be used in the application.
Data Sheet
56
Rev. 1.0, 2016-06-22