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Infineon Technologies TLE6251DST
- Part No.:
- TLE6251DST
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE6251DST.pdf
- Description:
- IC TRANSCEIVER FULL 1/1 PGDSO8
- Quantity:
- Payment:
- Shipping:
Inventory:3,899
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Product details
Overview
TLE6251DST from Infineon Technologies is a high-speed CAN transceiver IC compliant with ISO 11898-2:2016, supporting data rates up to 5 Mbps, operating from 4.5 V to 5.5 V supply, and featuring ±70 V bus fault protection. It serves as the physical layer interface between a CAN controller and differential bus lines in automotive body electronics and powertrain modules.
For engineers reviewing the TLE6251DST datasheet, TLE6251DST pinout, TLE6251DST application, or TLE6251DST equivalent, key selection criteria include bus fault tolerance, common-mode voltage range (–27 V to +40 V), silent mode operation, thermal shutdown behavior, and compatibility with 3.3 V or 5 V CAN controllers.
Technical Context
The TLE6251DST implements a fully integrated differential driver and receiver with dominant timeout protection and slope control for EMI reduction. Its RXD output is TTL-compatible and features a wake-up capability via bus activity detection.
It supports high-speed CAN communication with symmetrical signal edges, built-in undervoltage lockout (UVLO) at VCC < 4.0 V, and thermal shutdown at junction temperature > 160 °C. The device operates in Normal, Silent, and Sleep modes controlled by the STB pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus Fault Protection | ±70 V - enables robust operation during load dump or battery reverse connection in 12 V automotive systems |
| Data Rate | Up to 5 Mbps - supports high-speed CAN FD physical layer signaling without external timing components |
| Common-Mode Range | –27 V to +40 V - ensures reliable communication across wide ground potential differences in vehicle chassis networks |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive logic rails and tolerant of battery ripple |
| Standby Current | ≤ 10 µA in Sleep mode - minimizes quiescent power draw for always-on ECU nodes |
| Thermal Shutdown | Activates at TJ > 160 °C - prevents permanent damage during sustained bus short-circuit conditions |
Pinout & Package
Package: PG-DSO-8 (8-pin exposed pad SOIC, 150 mil width, RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 5 V nominal supply rail; must be decoupled with ≥100 nF ceramic capacitor near pin |
| GND | Ground reference | System ground return path for both logic and bus circuitry; connects to exposed thermal pad |
| TXD | Transmit data input | TTL/CMOS-level input from CAN controller; active-high logic drives bus differential state |
| RXD | Receive data output | TTL-level output indicating bus recessive/dominant state; open-drain capable for wired-AND |
| STB | Standby mode control | Active-low input enabling Sleep mode (low) or Normal/Silent mode (high) |
| VS | Supply monitor input | Monitors battery voltage; asserts TXD low if VS drops below threshold (enables fail-safe bus idle) |
| CANH | High-side bus line | Differential output driving CANH line; internally clamped to ±70 V for fault protection |
| CANL | Low-side bus line | Differential output driving CANL line; complements CANH for differential signaling |
Key Features
| Feature | Design Value |
|---|---|
| ISO 11898-2:2016 compliance | Guarantees interoperability with other high-speed CAN nodes in automotive ECUs without protocol translation |
| Dominant timeout protection | Prevents bus lock-up by forcing recessive state after 1.2 ms of continuous dominant TXD input |
| Slope control selection | Configurable via resistor on SLOPE pin to adjust edge rate for EMI optimization in different harness environments |
| Wake-up on bus activity | Enables transition from Sleep to Normal mode upon detected bus edge, reducing system wake latency |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) |
|---|---|
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in modern vehicles. IC Role / Device Role / Timing Role: Physical layer transceiver interfacing microcontroller CAN peripheral to vehicle-wide CAN backbone. Use Value: ±70 V fault protection ensures uninterrupted operation during jump-starts or alternator load dumps. | Use Scenario: Real-time monitoring and actuation of fuel injection, ignition timing, and exhaust gas recirculation. IC Role / Device Role / Timing Role: High-speed CAN PHY enabling deterministic 5 Mbps message exchange between engine sensors and control logic. Use Value: Common-mode range of –27 V to +40 V accommodates ground offsets across engine bay wiring harnesses. |
| Advanced Driver Assistance Systems (ADAS) Camera Node | Electric Power Steering (EPS) Module |
Use Scenario: Transmitting image metadata and diagnostic status from forward-facing camera to domain controller. IC Role / Device Role / Timing Role: Low-latency CAN transceiver supporting time-triggered communication for safety-critical vision subsystems. Use Value: Dominant timeout protection prevents bus hang during camera firmware update or sensor reset events. | Use Scenario: Closed-loop torque feedback and motor phase control coordination between EPS MCU and motor driver. IC Role / Device Role / Timing Role: Robust CAN interface maintaining communication integrity under high EMI from brushless motor switching. Use Value: Slope control allows tuning of signal edge rate to meet CISPR 25 Class 5 radiated emissions limits. |
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 TJA1043T | Lower standby current (≤ 5 µA), integrated VIO supply for 3.3 V controllers, no VS pin monitoring | Better suited for mixed-voltage domains with 3.3 V CAN controllers; lacks battery voltage monitoring feature | Select when system uses 3.3 V logic and requires ultra-low sleep power, but can omit VS-based fail-safe behavior |
| ST TLE6251-2G | Same pinout and function, but qualified to AEC-Q100 Grade 0 (−40 °C to +150 °C) vs. Grade 1 (−40 °C to +125 °C) | Required for under-hood applications exceeding 125 °C ambient, e.g., turbocharged engine compartments | Select when extended temperature operation beyond 125 °C is mandated by OEM thermal requirements |
Compared with TJA1043T and TLE6251-2G, the TLE6251DST offers balanced performance for mainstream automotive body and powertrain modules, retaining VS monitoring for battery fault response while meeting AEC-Q100 Grade 1 reliability without over-specifying temperature range or standby current.
Availability
TLE6251DST is available at Aetrix Electronics and suitable for Body Control Modules, Engine Control Units, ADAS camera nodes, and Electric Power Steering modules requiring stable component supply across automotive production lifecycles.
Supply support for TLE6251DST 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 R&D and manufacturing infrastructure.
The TLE6251DST belongs to Infineon's automotive-grade high-speed CAN transceiver product line, designed specifically for robust, fault-tolerant communication in 12 V vehicle networks.
FAQ
What is the maximum common-mode voltage the TLE6251DST can withstand?
The TLE6251DST supports a common-mode voltage range of –27 V to +40 V. This specification ensures reliable differential signal reception even when ground potentials between nodes differ significantly-such as between chassis-grounded ECUs and engine-block-mounted sensors-without data corruption or latch-up.
Does the TLE6251DST support CAN FD physical layer operation?
Yes, the TLE6251DST supports CAN FD physical layer signaling up to 5 Mbps, as confirmed by its ISO 11898-2:2016 compliance and measured propagation delay (< 150 ns) and symmetry specifications. It does not implement CAN FD protocol arbitration or data phase handling-those functions remain in the controller-but provides the required high-speed PHY layer.
How does the STB pin control operational modes?
The STB pin is an active-low input: logic low places the device in Sleep mode (RXD high-impedance, TXD disabled, ICC ≤ 10 µA); logic high enables Normal mode (full transmit/receive) or Silent mode (transmit disabled, receive enabled) depending on TXD state. No external pull-up is required as internal biasing is provided.
Is thermal shutdown automatically reset when temperature falls?
Yes, thermal shutdown is self-resetting: once junction temperature falls below the hysteresis threshold (~145 °C), normal operation resumes without requiring a power cycle or STB pin toggle. This behavior is intrinsic to the silicon design and requires no external intervention or configuration.
TLE6251DST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Full
- Receiver Hysteresis:
- 200 mV
- Data Rate:
- 1MBd
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8
TLE6251DST FAQ
1.How can I place an order for TLE6251DST through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE6251DST 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 TLE6251DST reliable?
The price and inventory of TLE6251DST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE6251DST is usually 5 days.
3.What payment methods are accepted for TLE6251DST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE6251DST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE6251DST?
TLE6251DST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE6251DST 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 TLE6251DST?
For technical support, including TLE6251DST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE6251DST requirements.
6.How does Aetrix verify that TLE6251DST is sourced from the original manufacturer or authorized distributors?
All TLE6251DST 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 TLE6251DST meets industry standards.
7.What is the process for return or replacement of TLE6251DST?
All TLE6251DST units undergo pre-shipment inspection (PSI). If there is an issue with TLE6251DST, 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 TLE6251DST part is unused and in its original packaging.
Return procedure for TLE6251DST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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