TLE6251DS Infineon Technologies, TLE6251DS Datasheet - Page 7

• Manufacturer Part Number: TLE6251DS
• Description: IC CAN-TRANSCEIVER 1MBAUD DSO-8
• Manufacturer: Infineon Technologies
• Type: Transceiverr

Specifications of TLE6251DS

• Package / Case: DSO-8
• Number Of Drivers/receivers: 1/1
• Protocol: CAN
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Product: Controller Area Network (CAN)
• Number Of Transceivers: 1
• Data Rate: 1 MBd
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 4.75 V
• Supply Current (max): 10 mA
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SP000069399

TLE6251DS
Transmission
The signal from the µC is applied to the TxD input of the TLE6251DS. Now the bus driver
switches the CANH/L output stages to transfer this input signal to the CAN bus lines.
TxD Time-out Feature
t
t
If the TxD signal is dominant for a time
>
the TxD time-out function deactivates the
TxD
transmission of the signal at the bus. This is realized to prevent the bus from being blocked
permanently dominant due to an error.
The transmission is released again, after a rising edge at TxD has been detected.
Reduced Electromagnetic Emission
The bus driver has an implemented control to reduce the electromagnetic emission (EME). This
is achieved by controlling the symmetry of the slope, resp. of CANH and CANL.
Overtemperature
The driver stages are protected against overtemperature. Exceeding the shutdown temperature
results in deactivation of the driving stages at CANH/L. To avoid a bit failure after cooling down,
the signals can be transmitted again only after a dominant to recessive edge at TxD.
Figure 4
shows the way how the transmission stage is deactivated and activated again. First an
over temperature condition causes the transmission stage to deactivate. After the over
temperature condition is no longer present, the transmission is only possible after the TxD signal
has changed to recessive level.
Data Sheet
7
Rev. 3.1, 2007-08-20