Data Sheet

15

Rev. 1.0

2017-08-09

HS CAN Transceiver

High Speed CAN Transceiver

Fail safe functions

7.4

Overtemperature protection

The TLE9250V has an integrated overtemperature detection to protect the TLE9250V against thermal

overstress of the transmitter. The overtemperature protection is only active in Normal-operating mode. In

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 11). A hysteresis is implemented within the temperature sensor.

Figure 11

Overtemperature protection

7.5

Delay time for mode change

mode change from Power-save 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 TLE9250V releases the RxD output pin.

TxD

t

t

CANH

CANL

RxD

t

t

switch-on transmitter

T

cool down