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TLE9255WLC 数据表(PDF) 39 Page - Infineon Technologies AG

部件名 TLE9255WLC
功能描述  HS CAN Transceiver with Partial Networking
PDF  100 Pages
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制造商  INFINEON [Infineon Technologies AG]
网页  http://www.infineon.com
标志 INFINEON - Infineon Technologies AG

TLE9255WLC 数据表(HTML) 39 Page - Infineon Technologies AG

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Data Sheet
39
Rev. 1.02 2018-02-02
TLE9255W
Fail Safe Functions
6.5
Overtemperature Protection
Integrated overtemperature detection protects the TLE9255W from thermal overstress of the transmitter. The
overtemperature protection is active in Normal-operating Mode only. The temperature sensor provides the
temperature threshold TJSD. If the junction temperature exceeds the upper threshold TJSD, then the TLE9255W
disables the transmitter and sets the bit TSD, indicating that a critical temperature situation is reached. After
the device cools down the transmitter is re-enabled. Only an SPI command can reset the TSD bit. A hysteresis
is implemented within the temperature sensor.
Figure 35
Overtemperature protection
6.6
Delay Time for Mode Change
The TLE9255W performs mode changes within the time window tMode_Change. During mode changes
(tMode_Change) the RxD output pin is permanently set to “high” and does not reflect the status on the CANH and
CANL input pins. After the mode change is completed, the TLE9255W releases the RxD output pin.
TxD
t
t
CANH
CANL
RxD
t
TJ
t
TJSD (shut down temperature)
switch-on transmitter
T
cool down



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