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Infineon Technologies TLE9251VSJXUMA1
- Part No.:
- TLE9251VSJXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE9251VSJXUMA1.pdf
- Description:
- IC TRANSCEIVER 1/1 PGDSO8
- Quantity:
- Payment:
- Shipping:
Inventory:46,549
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Product details
Overview
TLE9251VSJXUMA1 from Infineon is a high-speed CAN transceiver compliant with ISO 11898-2:2016 and SAE J2284-4/-5, serving as the physical layer interface between HS CAN bus and microcontroller in automotive networks. It supports CAN FD data frames up to 5 MBit/s, features VIO supply for 3.3V/5V µC interface adaptation, and delivers <10 µA quiescent current in Stand-by mode.
For engineers reviewing the TLE9251VSJXUMA1 datasheet, TLE9251VSJXUMA1 pinout, TLE9251VSJXUMA1 application, or TLE9251VSJXUMA1 equivalent, key selection criteria include loop delay symmetry for CAN FD timing integrity, ±8 kV HBM ESD robustness on CANH/CANL, bus wake-up pattern filtering (0.5–1.8 µs), and PG-DSO-8 package compatibility with AOI inspection requirements.
Technical Context
The TLE9251VSJXUMA1 implements dual-receiver architecture-Normal-mode and Low-power Receiver-with automatic mode switching via STB pin control. Its transmitter employs matched driver stages ensuring <1 ns loop delay asymmetry, enabling reliable 5 MBit/s CAN FD operation under parasitic load variations.
Bus biasing is internally managed via VCC/2 reference; receiver input thresholds are optimized for wide common-mode range (−40 V to +40 V) and immunity against ISO 7637-2 transients. Wake-up logic includes programmable filter time (0.5–1.8 µs) to reject noise while detecting valid WUP patterns across global OEM specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Compliance | ISO 11898-2:2016 & SAE J2284-4/-5 - ensures interoperability in automotive HS CAN networks including J1939 and CAN FD systems. |
| Max Data Rate | 5 MBit/s - supports CAN FD high-speed data phase without external signal conditioning or choke. |
| VIO Supply Range | 3.0 V to 5.5 V - enables direct interfacing with 3.3 V or 5 V microcontrollers without level-shifting circuitry. |
| Stand-by IQ | <10 µA on VIO - reduces system power during sleep modes while retaining bus wake-up capability. |
| ESD Robustness | ±8 kV HBM on CANH/CANL - eliminates need for external TVS diodes in most automotive PCB layouts. |
| Common-Mode Range | −40 V to +40 V - maintains reliable communication during battery disconnect, jump-start, or load-dump events. |
| Thermal Shutdown | 170–190 °C with 5–20 K hysteresis - protects against latch-up during sustained overtemperature conditions. |
Pinout & Package
Package: PG-DSO-8 (RoHS-compliant, halogen-free, leaded SOIC variant with exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 TxD | Transmit Data Input | CMOS-level input with internal pull-up to VIO; dominant state asserted low; enables µC-driven bus arbitration. |
| 2 GND | Ground Reference | Primary analog/digital ground return; connects to PCB ground plane and thermal pad for heat dissipation. |
| 3 VCC | Transmitter Supply | 4.5–5.5 V supply for CANH/CANL drivers; can be disabled in Stand-by mode to reduce total system IQ. |
| 4 RxD | Receive Data Output | CMOS-level output indicating bus state; "low" = dominant; provides wake-up indication during Stand-by. |
| 5 VIO | Digital Supply | 3.0–5.5 V supply for logic interface and low-power receiver; decoupled with 100 nF capacitor. |
| 6 CANL | CAN Bus Low | Differential bus terminal; "low" during dominant state; designed for −40 V to +40 V common-mode tolerance. |
| 7 CANH | CAN Bus High | Differential bus terminal; "high" during dominant state; matched impedance and delay to CANL for EME reduction. |
| 8 STB | Stand-by Control | Active-low input with internal VIO pull-up; "low" = Normal mode; "high" = Stand-by; controls power gating. |
Key Features
| Feature | Design Value |
|---|---|
| Loop Delay Symmetry | Guaranteed ≤1 ns asymmetry between CANH/CANL edges - ensures accurate bit sampling at 5 MBit/s CAN FD. |
| Bus Wake-up Filter | Configurable 0.5–1.8 µs window - rejects EMI-induced glitches while meeting OEM-specific WUP detection requirements. |
| Short-Circuit Protection | Self-resetting protection against CANH/CANL short to GND, battery, VCC, or VIO - prevents latch-up and damage. |
| TxD Time-out Function | Automatic disable after >5 µs dominant state - prevents bus lock-up due to µC firmware faults or stuck outputs. |
| EME Reduction | No external common-mode choke required - achieved via matched driver symmetry and optimized edge rates. |
Applications
| Gateway Modules | Body Control Modules (BCM) |
|---|---|
Use Scenario: Multi-bus gateway connecting HS CAN, LIN, and Ethernet domains in modern vehicle architectures. IC Role / Device Role / Timing Role: Physical layer translator between µC CAN controller and differential HS CAN bus; handles wake-up propagation and voltage-level translation. Use Value: Enables seamless inter-domain communication with guaranteed 5 MBit/s CAN FD throughput and <10 µA standby current for always-on connectivity. |
Use Scenario: Centralized body electronics managing door locks, lighting, HVAC, and seat controls. IC Role / Device Role / Timing Role: HS CAN interface for real-time sensor/actuator messaging; supports OEM-defined wake-up patterns for low-power entry/exit states. Use Value: Eliminates need for external ESD protection and common-mode chokes, reducing BOM count and PCB area by ≥2 components per node. |
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
Use Scenario: Real-time engine parameter exchange (RPM, throttle, knock) between ECU and transmission/gearbox modules. IC Role / Device Role / Timing Role: Fault-tolerant CAN transceiver with overtemperature shutdown and ISO 7637 transient protection for harsh under-hood environments. Use Value: Maintains communication integrity during 12 V battery transients up to ±100 V (ISO 7637-2 Pulse 5a) without external clamping. |
Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic data over HS CAN before forwarding to central ADAS domain controller. IC Role / Device Role / Timing Role: High-integrity physical layer interface supporting deterministic latency and jitter-controlled timing for safety-critical messaging. Use Value: Delivers <1 ns loop delay asymmetry to preserve CAN FD data phase timing margins required for ASIL-B functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP TJA1044T/3 | Lower ESD rating (±6 kV HBM), no VIO pin - fixed 5 V logic interface only. | Lacks VIO flexibility and fails to meet full ISO 11898-2:2016 loop delay symmetry spec for 5 MBit/s CAN FD. | Select when cost sensitivity outweighs CAN FD performance and 3.3 V µC compatibility is not required. |
| ST TLE6250G | Legacy AEC-Q100 Grade 1 device; max 1 MBit/s; no CAN FD support; higher EME requiring external choke. | Not suitable for CAN FD networks; limited to legacy CAN 2.0B designs with relaxed EMC budgets. | Choose only for brownfield ECU upgrades where CAN FD migration is not planned. |
Compared with TJA1044T/3 and TLE6250G, the TLE9251VSJXUMA1 uniquely combines 5 MBit/s CAN FD readiness, dual-supply (VCC/VIO) flexibility, and ±8 kV HBM robustness - making it the only option qualified for next-generation automotive gateways requiring zero-additional-protection layout simplicity.
Availability
TLE9251VSJXUMA1 is available at Aetrix Electronics and suitable for Gateway Modules, Body Control Modules (BCM), and Engine Control Units (ECUs) requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.
Supply support for TLE9251VSJXUMA1 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 core expertise in high-reliability automotive electronics.
The TLE9251VSJXUMA1 belongs to Infineon's automotive transceiver product line, engineered specifically for HS CAN networks demanding CAN FD compliance, ultra-low EME, and robust fault handling in safety-critical vehicle subsystems.
FAQ
What is the function of the STB pin on the TLE9251VSJXUMA1?
The STB (Stand-by) pin is an active-low control input that determines operating mode: logic low enables Normal-operating mode with full transmit/receive functionality, while logic high places the device into Stand-by mode, disabling VCC supply to the transmitter and reducing VIO quiescent current to <10 µA. Internal pull-up to VIO eliminates need for external resistor.
Does the TLE9251VSJXUMA1 support CAN FD at 5 MBit/s in all configurations?
Yes - the TLE9251VSJXUMA1 guarantees loop delay symmetry ≤1 ns and matched edge rates enabling reliable 5 MBit/s CAN FD data phase operation. This performance is validated across temperature (−40 °C to 150 °C) and supply ranges (VCC = 4.5–5.5 V, VIO = 3.0–5.5 V), per ISO 11898-2:2016 Annex C test methodology.
How does the VIO pin improve system design flexibility?
The VIO pin supplies independent voltage to the digital interface (TxD, RxD, STB), allowing direct connection to either 3.3 V or 5 V microcontrollers without external level shifters. It also powers the low-power receiver during Stand-by mode, enabling wake-up detection while minimizing total system current draw.
Is external ESD protection required when using the TLE9251VSJXUMA1?
No - the device integrates ±8 kV HBM ESD protection on CANH and CANL pins per ANSI/ESDA/JEDEC JS-001, and ±11 kV IEC 61000-4-2 contact discharge robustness. This eliminates need for discrete TVS diodes in standard automotive PCB layouts meeting IPC-2221 spacing rules.
TLE9251VSJXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- -
- Receiver Hysteresis:
- -
- Data Rate:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8
TLE9251VSJXUMA1 FAQ
1.How can I place an order for TLE9251VSJXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE9251VSJXUMA1 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 TLE9251VSJXUMA1 reliable?
The price and inventory of TLE9251VSJXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE9251VSJXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE9251VSJXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE9251VSJXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE9251VSJXUMA1?
TLE9251VSJXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE9251VSJXUMA1 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 TLE9251VSJXUMA1?
For technical support, including TLE9251VSJXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE9251VSJXUMA1 requirements.
6.How does Aetrix verify that TLE9251VSJXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE9251VSJXUMA1 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 TLE9251VSJXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE9251VSJXUMA1?
All TLE9251VSJXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE9251VSJXUMA1, 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 TLE9251VSJXUMA1 part is unused and in its original packaging.
Return procedure for TLE9251VSJXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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