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Key Parameters and Features:
1. Voltage Supply: The TLE9251VSJXUMA1 typically operates with a supply voltage of 3.3 V.
2. High-Speed CAN: It supports CAN FD (Flexible Data Rate) for faster data rates, up to 5 Mbps, while being backward compatible with standard CAN (up to 1 Mbps).
3. Temperature Range: It can operate in a wide temperature range suitable for automotive use, typically from -40°C to 125°C.
4. Protection Features: The chip includes various protection features like overtemperature protection, short-circuit protection, and transceiver bus fault diagnostics.
Now, let's delve into a specific application scenario and provide a detailed circuit connection for the TLE9251VSJXUMA1 in a typical automotive setup.
Application Scenario: Automotive Body Control Module (BCM)
In this scenario, we will use the TLE9251VSJXUMA1 in a Body Control Module responsible for managing various functions like power windows, door locks, and lighting control in a vehicle.
Circuit Connection:
1. CAN Bus Connection (Pin 1 and 2): Connect Pin 1 (CANH) of the TLE9251VSJXUMA1 to the CAN High (CAN_H) line of the CAN bus and Pin 2 (CANL) to the CAN Low (CAN_L) line of the CAN bus.
2. Ground (Pin 3): Connect Pin 3 (GND) to the vehicle's ground.
3. Voltage Supply (Pin 4): Connect Pin 4 (VCC) to a regulated 3.3V power supply source in the vehicle.
4. TXD (Pin 5): Connect Pin 5 (TXD) to the microcontroller's CAN_TX pin for transmitting data to the CAN bus.
5. RXD (Pin 6): Connect Pin 6 (RXD) to the microcontroller's CAN_RX pin for receiving data from the CAN bus.
6. STB (Pin 7): Connect Pin 7 (STB) to a microcontroller's GPIO pin. This pin is used for enabling/disabling the transceiver for power-saving purposes.
7. VIO (Pin 8): Connect Pin 8 (VIO) to the microcontroller's supply voltage (3.3V).
Considerations when Designing the Circuit:
1. Termination Resistors: Ensure that proper termination resistors (typically 120 Ohms) are placed at each end of the CAN bus to match the characteristic impedance.
2. Noise Isolation: Implement noise isolation techniques, such as opto-isolation, to protect the transceiver from electrical noise and voltage spikes.
3. Power Supply Stability: The power supply voltage should be stable and within the specified range to ensure reliable operation.
4. Signal Integrity: Keep the CAN bus traces short and properly routed to minimize signal integrity issues.
5. Error Handling: Implement error handling and diagnostic routines in the microcontroller to detect and respond to CAN bus faults or errors.
6. Compliance with EMI/EMC: Verify that the circuit satisfies the requirements for automotive electronics' electromagnetic compatibility (EMC) and electromagnetic interference (EMI).
By following these guidelines and the specified connections, you can effectively integrate the TLE9251VSJXUMA1 into an automotive Body Control Module, enabling reliable communication over the CAN bus for various vehicle control functions.
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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of TLE9251VSJXUMA1.
(3)The PartNo is unused and only in the original unpacked packaging.
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(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
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