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Infineon Technologies TLE9255WSKXUMA2
- Part No.:
- TLE9255WSKXUMA2
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE9255WSKXUMA2.pdf
- Description:
- IC TRANSCEIVER FULL PGDSO14
- Quantity:
- Payment:
- Shipping:
Inventory:5,520
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Product details
Overview
TLE9255WSKXUMA2 from Infineon is a high-speed CAN transceiver with partial networking and CAN FD tolerance, compliant with ISO 11898-2:2016, supporting data rates up to 5 MBit/s, featuring ±10 kV ESD robustness (IEC 61000-4-2), quiescent current <26 µA in Sleep Mode, and dual supply (VCC/VIO) for 3.3 V or 5 V microcontrollers - deployed in automotive body control modules for low-power wake-up communication.
For engineers reviewing the TLE9255WSKXUMA2 datasheet, TLE9255WSKXUMA2 pinout, TLE9255WSKXUMA2 application, or TLE9255WSKXUMA2 equivalent, key selection criteria include CAN FD tolerance without MCU upgrade, selective wake-up frame detection (29-bit ID + 64-bit data), SPI-configurable modes (Normal/Receive-only/Sleep/Stand-by), and fail-safe features including TxD timeout and overtemperature shutdown.
Technical Context
The TLE9255WSKXUMA2 implements a differential HS CAN physical layer with advanced bus biasing per ISO 11898-2:2016, enabling operation without common-mode chokes. Its internal protocol handler monitors bus errors and reports overflow, synchronization failure, and CAN timeouts via SPI status flags.
It integrates a configurable SPI interface (up to 4 MHz) for real-time control of wake-up pattern (WUP) and wake-up frame (WUF) parameters, INH output, mode transitions, and undervoltage monitoring on VBAT, VCC, and VIO - all while maintaining electromagnetic emission (EME) below CISPR 25 Class 5 limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Compliance | ISO 11898-2:2016 certified; AEC-Q100 qualified for automotive use. |
| Max Data Rate | 5 MBit/s CAN FD tolerant - enables legacy MCUs to receive CAN FD payloads without protocol stack changes. |
| Quiescent Current | <26 µA in Sleep Mode across full temperature range - extends battery life in always-on vehicle networks. |
| ESD Robustness | ±10 kV HBM per IEC 61000-4-2 - eliminates need for external TVS diodes in most automotive harness environments. |
| Wake Filter Time | 0.5 µs < tFilter < 1.8 µs - meets global OEM requirements for reliable low-power wake detection. |
| SPI Clock | Up to 4 MHz - supports fast configuration updates and status polling without CPU overhead. |
| VIO Support | 3.3 V or 5 V logic interface - interoperable with both modern low-voltage and legacy automotive microcontrollers. |
Pinout & Package
Package: PG-DSO-14 (RoHS-compliant, surface-mount, 150 mil width, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main supply input | Provides power to transceiver core; supports extended operating range (4.5 V to 27 V) for cold-crank resilience. |
| VBAT | Battery supply input | Enables independent power domain for wake-up circuitry; allows operation even if VCC is unpowered. |
| VIO | I/O voltage reference | Configures logic level for TXD/RXD/SPI pins; selectable 3.3 V or 5 V compatibility. |
| TXD | Transmit data input | CMOS-level input from MCU; includes TxD timeout protection to prevent bus lock-up. |
| RXD | Receive data output | CMOS-level output to MCU; supports RxD toggle wake-up behavior independent of bus activity. |
| CANH / CANL | Differential bus terminals | Drive/receive HS CAN signals; designed for high symmetry to minimize EME and eliminate need for choke. |
| INH | Supply enable output | Open-drain output controlling external regulators; used for system-level power sequencing and fail-safe shutdown. |
| WAKE | Local wake-up input | Asynchronous digital input triggering mode change from Sleep/Stand-by - bypasses bus dependency. |
| CSN / SCK / MOSI / MISO | SPI interface | Full-duplex SPI (4-wire) for register access; enables dynamic reconfiguration of wake-up IDs, modes, and fault reporting. |
Key Features
| Feature | Design Value |
|---|---|
| CAN FD Tolerance | Receives and filters CAN FD frames at 5 MBit/s while forwarding only standard CAN ID/data to non-CAN FD MCUs - avoids firmware rewrite. |
| Selective Wake Sub-Mode | Detects user-defined 29-bit wake-up identifiers and up to 64-bit data patterns - reduces false wake-ups in multi-node networks. |
| Independent Supply Architecture | VCC, VBAT, and VIO powered separately - enables VBAT-powered wake monitoring while VCC is off, improving system-level energy efficiency. |
| Fail-Safe Monitoring | Integrated TxD timeout, overtemperature warning/shutdown, and multi-rail undervoltage detection - provides deterministic fault response without MCU intervention. |
| EMI-Optimized Driver | High-symmetry CANH/CANL output stage achieving CISPR 25 Class 5 compliance - eliminates external filtering components in most layouts. |
Applications
| Body Control Module (BCM) | Door Module |
|---|---|
Use Scenario: Low-power vehicle entry system monitoring door handle buttons and proximity sensors while main ECU sleeps. IC Role / Device Role / Timing Role: HS CAN transceiver handling partial networking wake-up via WUF detection; manages local wake-up (LWU) from mechanical switches. Use Value: Achieves <26 µA sleep current enabling >1-year battery standby in keyless entry systems without compromising wake responsiveness. |
Use Scenario: Distributed door electronics communicating window position, mirror angle, and lock status over HS CAN. IC Role / Device Role / Timing Role: Physical layer interface with CAN FD tolerance - forwards diagnostic data bursts at 5 MBit/s while maintaining compatibility with 125 kBit/s legacy gateways. Use Value: Eliminates need for gateway-side protocol translation, reducing BOM cost and software validation effort. |
| Seat Control Unit | Lighting Control Module |
Use Scenario: Occupant detection and seat position memory storage triggered by ignition-off CAN traffic. IC Role / Device Role / Timing Role: Partial networking node using selective wake to respond only to seat-related messages - ignores HVAC or infotainment frames. Use Value: Reduces average current draw by 70% vs. full-bus monitoring, extending vehicle-off battery life in premium seating systems. |
Use Scenario: Adaptive front-lighting system synchronizing LED matrix activation with steering angle and speed signals. IC Role / Device Role / Timing Role: High-immunity transceiver driving CANH/CANL with minimal EME - prevents optical sensor interference in close-proximity PCB layout. Use Value: Meets CISPR 25 Class 5 without ferrite beads or shielding cans, saving 32 mm² PCB area per node. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HS CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP TJA1044T | Supports CAN FD up to 2 MBit/s; no SPI interface; fixed wake-up filter (1.5 µs); lacks VBAT-independent operation. | Requires external wake-up controller for selective wake; limited to simpler partial networking use cases. | Choose when SPI configurability and ultra-low sleep current are not required - lower unit cost in cost-sensitive modules. |
| ST TLE6250G | Legacy HS CAN only (1 MBit/s max); no CAN FD support; no wake-up frame detection; no SPI; higher sleep current (60 µA). | Cannot participate in CAN FD networks or implement selective wake - suitable only for basic wake-on-bus designs. | Choose only for brownfield upgrades where CAN FD and advanced wake features are excluded from system requirements. |
Compared with TJA1044T and TLE6250G, the TLE9255WSKXUMA2 uniquely combines CAN FD tolerance, SPI-driven selective wake, and sub-26 µA sleep current - making it the only option for next-gen automotive nodes requiring both protocol flexibility and ultra-low-power autonomy.
Availability
TLE9255WSKXUMA2 is available at Aetrix Electronics and suitable for automotive body control modules, door electronics, seat control units, and adaptive lighting systems requiring stable component supply across extended vehicle lifecycles.
Supply support for TLE9255WSKXUMA2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial control solutions, with global manufacturing and AEC-Q100 qualification infrastructure.
The TLE9255WSKXUMA2 belongs to Infineon's Smart Power Technology (SPT) HS CAN transceiver family, engineered specifically for automotive partial networking architectures requiring ultra-low-power wake-up, CAN FD interoperability, and fail-safe operation in harsh environments.
FAQ
Does TLE9255WSKXUMA2 require an external crystal or clock source?
No. The TLE9255WSKXUMA2 is a physical-layer transceiver only and contains no internal oscillator or timing reference. It relies entirely on the CAN controller's bit timing configuration and does not use or require any external clock source - all timing is derived from the CAN bus signal edges.
Can TLE9255WSKXUMA2 operate without connection to VBAT?
Yes. The device supports VCC-only operation: VBAT may be left unconnected or tied to VCC. In this configuration, wake-up functionality remains active via CAN bus activity or the WAKE pin, but VBAT-dependent features like battery voltage monitoring are disabled - verified in Infineon's datasheet Section 5.6 and Table 9.2.
What is the maximum cable length supported at 5 MBit/s CAN FD?
At 5 MBit/s, the maximum recommended stub-free cable length is 10 meters per ISO 11898-2:2016 guidelines. This limitation arises from signal propagation delay and reflection constraints - not a transceiver-specific restriction. System-level impedance matching and termination remain critical for reliable operation.
How does the TLE9255WSKXUMA2 handle bus dominant timeout during Sleep Mode?
In Sleep Mode, the TLE9255WSKXUMA2 disables driver output but retains receiver sensitivity. If a dominant state persists on CANH/CANL beyond 12 ms (configurable via SPI), the internal TxD timeout function triggers a wake event and transitions to Normal Mode - ensuring recovery from bus faults without MCU intervention.
TLE9255WSKXUMA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- -
- Duplex:
- Full
- Receiver Hysteresis:
- -
- Data Rate:
- 1Mbps
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-14
TLE9255WSKXUMA2 FAQ
1.How can I place an order for TLE9255WSKXUMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9255WSKXUMA2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLE9255WSKXUMA2 reliable?
The price and inventory of TLE9255WSKXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9255WSKXUMA2 is usually 5 days.
3.What payment methods are accepted for TLE9255WSKXUMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9255WSKXUMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9255WSKXUMA2?
TLE9255WSKXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9255WSKXUMA2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLE9255WSKXUMA2?
For technical support, including TLE9255WSKXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9255WSKXUMA2 requirements.
6.How does Aetrix verify that TLE9255WSKXUMA2 is sourced from the original manufacturer or authorized distributors?
All TLE9255WSKXUMA2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE9255WSKXUMA2 meets industry standards.
7.What is the process for return or replacement of TLE9255WSKXUMA2?
All TLE9255WSKXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE9255WSKXUMA2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLE9255WSKXUMA2 part is unused and in its original packaging.
Return procedure for TLE9255WSKXUMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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