Datasheet

19

Rev. 1.11

2019-09-19

High Speed CAN Transceiver

TLE9251V

Fail safe functions

case of an overtemperature condition, the temperature sensor will disable the transmitter while the

transceiver remains in Normal-operating mode. After the device has cooled down the transmitter is activated

again (see Figure 14). A hysteresis is implemented within the temperature sensor.

Figure 14

Overtemperature proctection

8.5

Delay time for mode change

The HS CAN transceiver TLE9251V changes the mode of operation within the time window tMode. During the

mode change from Stand-by mode to non-low power mode the RxD output pin is permanently set to logical

“high” and does not reflect the status on the CANH and CANL input pins.

After the mode change is completed, the transceiver TLE9251V releases the RxD output pin.

TxD

t

t

CANH

CANL

RxD

t

TJ

t

TJSD (shut down temperature)

switch-on transmitter

ΔT

cool down