TLE9263-3QX Datasheet, PDF (97/198 Pages) Infineon Technologies AG – Dedicated Data Sheets are available for the different product variants

TLE9263-3QX
LIN Transceiver
11.2.5 TXD Time-out Feature
If the TXD signal is dominant for the time t >t_{TxD_LIN _TO}, the TXD time-out function deactivates the LIN transmitter
output stage temporarily. The transceiver remains in recessive state. The TXD time-out functions prevents the LIN
bus from being blocked by a permanent LOW signal on the TXD pin, caused by a failure. The failure is stored in
the SPI flag LIN1_FAIL and LIN2_FAIL. The LIN transmitter stage is activated again after the dominant time-out
condition is removed. The transceiver configuration stays unchanged.
TxD
TxD Time-Out due to
microcontroller error
Normal Communication
ttimeout
Recovery of the
microcontroller error
ttorec
Release after TxD
Time-out
Normal Communication
t
LIN
t
Figure 40 TXD Time-Out Function
11.2.6 Bus Dominant Clamping
If the LIN bus signal is dominant for a time t > t_{BUS_LIN_TO} regardless of the LIN transceiver mode, a bus dominant
clamping is detected and the SPI bit LIN1_FAIL and LIN2_FAIL is set. The transceiver configuration stays
unchanged.
11.2.7 Under-Voltage Detection
In case the supply voltage is dropping below the VSHS under-voltage detection threshold (VSHS < V_SHS,UVD), the
TLE9263-3QX disables the output and receiver stages. If the power supply reaches a higher level than the under
voltage detection threshold (VSHS > V_SHS,UVD), the TLE9263-3QX continues with normal operation. The
transceiver configuration stays unchanged.
Data Sheet
97
Rev. 1.1, 2014-09-26