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Infineon Technologies TLE9255WSKXUMA1
- Part No.:
- TLE9255WSKXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE9255WSKXUMA1.pdf
- Description:
- IC TRANSCEIVER FULL PGDSO14
- Quantity:
- Payment:
- Shipping:
Inventory:1,131
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Product details
Overview
TLE9255WSKXUMA1 from Infineon is a high-speed CAN transceiver with partial networking and CAN FD tolerance, compliant with ISO 11898-2:2016. It operates at data rates up to 5 MBit/s (CAN FD), supports dual supply (VCC/VIO), delivers <26 µA quiescent current in Sleep Mode, and integrates SPI-configurable wake-up frame detection for automotive body control modules and gateway ECUs.
For engineers reviewing the TLE9255WSKXUMA1 datasheet, TLE9255WSKXUMA1 pinout, TLE9255WSKXUMA1 application, or TLE9255WSKXUMA1 equivalent, key selection criteria include CAN FD tolerance without microcontroller upgrade, selective wake-up via 29-bit ID + 64-bit data matching, fail-safe features (TxD timeout, overtemperature shutdown), and dual-supply operation supporting 3.3 V/5 V MCUs.
Technical Context
The TLE9255WSKXUMA1 implements a differential HS CAN physical layer with bus biasing per ISO 11898-2:2016, enabling choke-free operation in automotive ECU designs. Its internal protocol handler monitors bus errors and reports overflow, sync failure, and CAN timeout events via SPI status registers.
Four operational modes-Normal, Receive-only, Stand-by, and Sleep-are controlled via SPI, with Sleep Mode subdivided into WUP and Selective Wake sub-modes. Wake filter time (0.5–1.8 µs) and local wake-up input ensure compliance with global OEM timing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus Data Rate | Up to 5 MBit/s CAN FD - enables payload expansion without changing MCU or network topology. |
| Quiescent Current (Sleep) | <26 µA over full temperature range - extends battery life in always-on vehicle domains. |
| Wake Filter Time | 0.5 µs < tFilter < 1.8 µs - meets OEM-specific noise immunity and false-trigger thresholds. |
| SPI Clock Frequency | Up to 4 MHz - allows fast configuration of wake-up IDs, mode transitions, and fault reporting. |
| ESD Robustness | ±10 kV HBM - eliminates need for external TVS diodes in most automotive harness environments. |
| Supply Flexibility | VCC-only operation possible (no VBAT required) - simplifies power architecture in low-voltage subsystems. |
| Wake-Up Frame Support | 29-bit identifier + up to 64-bit data field evaluation - enables precise node-selective activation in multi-ECU networks. |
Pinout & Package
Package: PG-DSO-14 (RoHS-compliant, surface-mount, 150 mil width).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main supply input | Provides core logic and transceiver power; supports 4.5–27 V operation. |
| VBAT | Battery supply input | Optional backup supply; enables wake-up monitoring during ignition-off states. |
| VIO | I/O voltage reference | Configures logic level compatibility for 3.3 V or 5 V microcontrollers. |
| CANH / CANL | Differential bus interface | Drives/receives HS CAN signals with common-mode range ±36 V for robust EMI immunity. |
| TxD / RxD | Transmit/Receive data interface | Connects to MCU's CAN controller; RxD supports wake-up on toggle or permanent low. |
| INH | Enable output | Drives external regulators or LDOs; configurable as active-high or active-low via SPI. |
| CSN / SCK / MOSI / MISO | SPI interface | Enables full register access for mode control, wake-up configuration, and fault diagnostics. |
| LWU | Local wake-up input | Hardware-triggered wake source independent of bus activity (e.g., door sensor pulse). |
Key Features
| Feature | Design Value |
|---|---|
| CAN FD Tolerance | Receives and filters CAN FD frames while connected to legacy CAN-only MCUs - avoids firmware rewrite or hardware redesign. |
| Selective Wake Sub-Mode | Monitors bus for user-defined 29-bit ID + 64-bit data pattern - reduces system-wide wake events by >90% vs. broadcast wake. |
| Fail-Safe TxD Timeout | Auto-disables driver after programmable timeout (default 10 ms) - prevents bus lockup during MCU hang or SPI failure. |
| Independent VCC/VIO Supplies | Decouples transceiver core voltage from MCU I/O voltage - supports mixed-voltage architectures without level shifters. |
| Choke-Free Operation | High-symmetry CANH/CANL drive with ultra-low EME - eliminates common-mode choke in cost-sensitive body electronics. |
Applications
| Body Control Module (BCM) | Gateway ECU |
|---|---|
Use Scenario: Centralized control of doors, lights, windows, and HVAC in modern vehicles. IC Role / Device Role / Timing Role: HS CAN transceiver handling partial networking wake-up and CAN FD message routing between LIN, CAN, and Ethernet domains. Use Value: Enables selective wake-up of individual sub-modules (e.g., only mirror control) without waking entire network - cuts standby current by 40%. |
Use Scenario: Aggregation and translation of messages across multiple vehicle networks (CAN, LIN, FlexRay, Ethernet). IC Role / Device Role / Timing Role: High-reliability CAN FD transceiver with SPI-managed wake-up filtering and error reporting for inter-domain communication. Use Value: Supports simultaneous CAN FD payloads (up to 64 bytes) and legacy CAN traffic - future-proofs gateway design without MCU replacement. |
| Advanced Driver Assistance Systems (ADAS) Sensor Hub | Electric Powertrain Control Unit |
Use Scenario: Consolidation of radar, camera, and ultrasonic sensor data via CAN FD before forwarding to ADAS domain controller. IC Role / Device Role / Timing Role: Low-latency, ESD-hardened CAN FD transceiver with deterministic wake-up response (<1.8 µs filter) for safety-critical timing. Use Value: Meets ASIL-B timing constraints for sensor fusion; ±10 kV ESD rating ensures reliability in high-noise under-hood environments. |
Use Scenario: Real-time torque, speed, and thermal monitoring between inverter, motor, and battery management systems. IC Role / Device Role / Timing Role: Fail-safe CAN transceiver with overtemperature shutdown and TxD timeout - prevents erroneous commands during thermal stress. Use Value: Overtemperature warning flag triggers derating before shutdown - maintains functional safety integrity during continuous high-load operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HS CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TJA1044T/3 | No SPI interface; fixed wake-up behavior; no CAN FD tolerance; lower ESD (±8 kV) | Limited to basic CAN networks without selective wake or diagnostics; unsuitable for CAN FD migration paths | Choose for cost-sensitive, non-networked modules where SPI configurability and CAN FD are unnecessary |
| SN65HVD256 | Single-supply (5 V only); no VIO pin; no partial networking; no wake-up frame filtering | Requires external level shifting for 3.3 V MCUs; lacks sleep-mode intelligence for battery-powered nodes | Choose only for legacy 5 V industrial CAN nodes with no low-power or diagnostic requirements |
Compared with TJA1044T/3 and SN65HVD256, the TLE9255WSKXUMA1 uniquely combines SPI-driven selective wake-up, CAN FD tolerance, dual-supply flexibility, and fail-safe diagnostics - making it the only option for AEC-Q100-compliant automotive gateways requiring software-defined network partitioning.
Availability
TLE9255WSKXUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, ADAS sensor hubs, and electric powertrain control units requiring stable component supply across extended product lifecycles.
Supply support for TLE9255WSKXUMA1 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 security solutions, with global manufacturing and qualification infrastructure.
The TLE9255WSKXUMA1 belongs to Infineon's automotive-grade HS CAN transceiver family, designed specifically for partial networking and CAN FD migration in harsh-temperature, high-reliability vehicle networks.
FAQ
Is TLE9255WSKXUMA1 pin-compatible with earlier Infineon CAN transceivers like TLE6250?
No, TLE9255WSKXUMA1 uses a 14-pin PG-DSO package with dedicated SPI and INH pins not present in TLE6250's 8-pin SOIC layout. Pin mapping differs significantly due to added functionality including wake-up configuration, fail-safe flags, and dual-supply inputs. Migration requires PCB redesign and firmware updates to leverage SPI control.
Does TLE9255WSKXUMA1 require an external common-mode choke?
No. Its high-symmetry CANH/CANL driver and optimized edge rates achieve electromagnetic emission (EME) levels low enough to meet CISPR 25 Class 5 without a common-mode choke in typical automotive harness configurations, reducing BOM cost and board space.
What is the maximum allowed CAN bus length at 5 MBit/s?
At 5 MBit/s CAN FD, the maximum recommended bus length is 15 meters with standard 120 Ω termination, based on signal integrity testing per ISO 11898-2:2016. Longer runs require pre-emphasis tuning or reduced data rate to maintain bit error rate <10⁻⁹.
Can TLE9255WSKXUMA1 operate without VBAT connected?
Yes. The device supports VCC-only operation, drawing power solely from the VCC pin (4.5–27 V). VBAT is optional and used only to maintain wake-up monitoring during deep sleep when VCC may be disabled - enabling flexible power architecture in low-quiescent-current designs.
TLE9255WSKXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
TLE9255WSKXUMA1 FAQ
1.How can I place an order for TLE9255WSKXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9255WSKXUMA1 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 TLE9255WSKXUMA1 reliable?
The price and inventory of TLE9255WSKXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9255WSKXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE9255WSKXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9255WSKXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9255WSKXUMA1?
TLE9255WSKXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9255WSKXUMA1 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 TLE9255WSKXUMA1?
For technical support, including TLE9255WSKXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9255WSKXUMA1 requirements.
6.How does Aetrix verify that TLE9255WSKXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE9255WSKXUMA1 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 TLE9255WSKXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE9255WSKXUMA1?
All TLE9255WSKXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE9255WSKXUMA1, 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 TLE9255WSKXUMA1 part is unused and in its original packaging.
Return procedure for TLE9255WSKXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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