TLE7263E Datasheet, PDF (19/63 Pages) Infineon Technologies AG – Integrated HS-CAN, LIN, LDO and HS Switch System Basis Chip

TLE 7263E
Features
RxD Permanent Recessive Clamping
Internal RxD signal does not match signal at RxD pin because the RxD pin is pulled to
HIGH (permanent HIGH). This results in setting the local failure flag and disabling of the
receiver stage
Remark: the flag is cleared when RxD signal gets dominant.
TxD to RxD Short Circuit
Caused by a short circuit between RxD and TxD. The local failure flag is set and the
transmitter stage is disabled.
Remark: the flag is cleared once the short circuit condition is removed.
Bus Dominant Clamping
At a permanent dominant signal at the CAN bus for t > t_BUS the local failure flag is set.
Remark: none
Over Temperature Detection
Once the maximum junction temperature at the driving stages exceeded, the local failure
flag is set and the transmitter stage is disabled.
Remark: the flag is cleared once RxD gets dominant. Bus only released after the next
dominant bit in TxD.
Split Circuit
The split circuitry is activated during SBC Active and RxD Only Mode and deactivated
(SPLIT pin high omic) during SBC Sleep, Stop and Standby Mode. The SPLIT pin is used
to stabilize the recessive common mode signal in SBC Active Mode and RxD Only mode.
This is realized with a stabilized voltage of 0.5 V_CC2 at the SPLIT pin.
A correct application of the SPLIT pin is shown in Figure 10. The split termination for the
left and right node is realized with two 60 Ohm resistances and one 10nF capacitor. The
center node in this example is a stub node and the recommended value for the split
resistances is 1.5 kOhm.
Data Sheet
19
Rev. 1.51, 2007-06-22