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Infineon Technologies TLE8458GXUMA1
- Part No.:
- TLE8458GXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE8458GXUMA1.pdf
- Description:
- IC TRANSCEIVER FULL 1/1 PGDSO816
- Quantity:
- Payment:
- Shipping:
Inventory:3,540
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Product details
Overview
TLE8458GXUMA1 from Infineon Technologies is an automotive-grade LIN transceiver with integrated 5 V low-dropout voltage regulator, compliant with LIN 2.1 specification, delivering up to 50 mA output current, operating across 7–27 V battery supply range, and supporting Normal, Stop, and Sleep modes with bus- or local-WK-pin wake-up capability - used in body control modules for door lock actuation and seat position feedback.
For engineers reviewing the TLE8458GXUMA1 datasheet, TLE8458GXUMA1 pinout, TLE8458GXUMA1 application, or TLE8458GXUMA1 equivalent, key selection considerations include LIN bus fault tolerance (short-to-ground/Vbat), quiescent current in Stop Mode (≤ 10 µA), thermal shutdown thresholds (150–200 °C), and pin compatibility with TLE7259-3GE for drop-in replacement in legacy designs.
Technical Context
The device integrates a LIN physical layer transceiver and a monolithic LDO regulator on a single Smart Power Technology (SPT®) die. It implements bus-wake detection via LIN line comparator and local wake-up via edge-triggered WK pin with internal pull-up, enabling autonomous entry/exit from ultra-low-power Stop and Sleep modes without MCU intervention.
Mode transitions are controlled by EN pin logic level and LIN bus activity, with dedicated hardware timeout circuitry for TxD signal integrity monitoring and overtemperature protection that disables VCC and LIN drivers independently at junction temperatures exceeding 150 °C, with 35 K hysteresis for VCC shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Compliance | LIN 2.1 compliant; meets all electrical requirements including dominant/recessive timing, bus short-circuit protection, and ±40 V fault tolerance. |
| VCC Output | 5 V ±2 % regulated output; supplies microcontroller core logic directly; requires ≥470 nF ceramic decoupling capacitor with ESR < 6 Ω at 10 kHz. |
| Quiescent Current (Stop) | ≤ 10 µA typical; enables extended battery life in parked vehicle scenarios where LIN nodes must remain responsive to bus wake events. |
| Wake-up Sources | Two independent sources: LIN bus activity (dominant pulse detection) and negative edge on WK pin; both trigger mode transition within 100 µs. |
| Thermal Protection | Dual thermal shutdown: VCC disabled at 150–200 °C (35 K hysteresis); LIN driver disabled at 150–200 °C (10 K hysteresis). |
| ESD Robustness | ±10 kV HBM on LIN, WK, VS pins; ±2 kV HBM on logic pins; supports automotive EMC validation per ISO 11452 and ISO 7637. |
| Supply Range | Operates from 7–27 V (Normal Mode); extends to 5.5–40 V (Extended Range) with parameter deviations; withstands load dump up to 40 V. |
Pinout & Package
Package: PG-DSO-8-16 (8-pin exposed-pad SOIC, 150 mil width, RoHS-compliant, AEC-Q100 qualified).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RxD | Receive Data Output | Active-low LIN bus data output; pulled low during dominant state; asserts low after wake-up event to signal MCU readiness. |
| 2 EN | Enable Input | Active-high enable with internal pull-down; sets device into Normal Mode when driven HIGH; controls power state sequencing. |
| 3 WK | Local Wake-up Input | Active-low, negative-edge triggered input with internal pull-up; initiates wake-up from Sleep/Stop Mode independent of LIN bus. |
| 4 TxD | Transmit Data Input | Active-low MCU transmit signal; drives LIN bus via internal driver; includes hardware timeout to prevent bus lockup. |
| 5 GND | Ground Reference | Primary ground return path for analog and digital sections; connects to exposed thermal pad for heat dissipation. |
| 6 LIN | LIN Bus I/O | Bidirectional LIN physical layer interface; includes internal termination and pull-up current source; fault-protected against short-to-ground/Vbat. |
| 7 VS | Battery Supply Input | Main power input (7–40 V); feeds internal LDO and LIN driver; includes overvoltage and reverse-polarity protection circuitry. |
| 8 VCC | Regulated Output | 5 V regulated output (50 mA max); powers external MCU or peripheral; disabled in Sleep Mode to minimize system leakage. |
Key Features
| Feature | Design Value |
|---|---|
| LIN + LDO integration | Single-chip solution reduces BOM count and PCB area vs. discrete transceiver + regulator; eliminates inter-stage coupling noise. |
| Ultra-low Stop Mode current | ≤10 µA enables >1-year battery standby in always-on LIN nodes (e.g., smart key receivers) without compromising wake responsiveness. |
| Independent thermal shutdown | VCC and LIN driver shut down at separate temperature thresholds with distinct hysteresis, preserving partial functionality during thermal stress. |
| Hardware TxD timeout | Automatic dominant-state timeout prevents bus lockup if MCU fails to release TxD; recovers autonomously without reset. |
| Bus fault resilience | Withstands LIN short-to-ground, short-to-Vbat, and ±40 V transients - eliminates need for external TVS diodes in most applications. |
Applications
| Body Control Module | Seat Position Sensor Interface |
|---|---|
|
Use Scenario: Centralized control unit managing door locks, window lifts, and mirror adjustments via LIN sub-nodes. IC Role / Device Role / Timing Role: LIN transceiver and MCU power supply; provides synchronized wake-up and regulated 5 V rail for sensor interface ICs. Use Value: Enables coordinated multi-node wake-up from sleep using single bus event; reduces system-level quiescent current by 40% vs. dual-chip solution. |
Use Scenario: LIN-connected potentiometric or Hall-effect seat position sensors feeding feedback to ECU. IC Role / Device Role / Timing Role: Physical layer interface and local 5 V supply; handles LIN frame timing (bit rate up to 20.0 kbps) and sensor biasing. Use Value: Integrated bus protection eliminates external clamping components; ±10 kV ESD rating ensures robustness during service operations. |
| Roof Module Actuation | Steering Column Controls |
|
Use Scenario: Sunroof or panoramic roof motor control node communicating status and position over LIN. IC Role / Device Role / Timing Role: LIN communication interface and local power source for motor driver logic and position encoder. Use Value: Dual wake-up sources allow activation via button press (WK pin) or remote command (bus wake), improving user response time. |
Use Scenario: LIN-linked buttons and rotary switches on steering column sending HVAC or infotainment commands. IC Role / Device Role / Timing Role: Low-latency LIN transceiver with fast wake-up (<100 µs) and stable 5 V supply for switch debouncing logic. Use Value: Very low Stop Mode current extends vehicle battery life during long parking periods while maintaining instant command responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LIN transceiver-with-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE7259-3GE | Standalone LIN transceiver (no regulator); requires external 5 V supply; identical pinout and logic behavior. | Used where system already provides clean 5 V rail; lacks integrated power conversion, increasing BOM and layout complexity. | Select when existing architecture separates power and communication functions or when higher VCC current (>50 mA) is needed via external regulator. |
| MC33662 | ON Semiconductor LIN transceiver with 5 V LDO; 60 mA output; supports LIN 2.2A; different pinout and WK pin polarity (active-high). | Requires PCB redesign due to non-pin-compatible layout; supports faster bit rates (up to 20.0 kbps) and enhanced diagnostics. | Select when upgrading to LIN 2.2A compliance or requiring diagnostic reporting (e.g., bus error counters, supply monitoring). |
Compared with TLE7259-3GE, TLE8458GXUMA1 reduces component count and improves system-level efficiency via integrated regulation; compared with MC33662, it offers proven AEC-Q100 reliability in high-temperature under-hood environments but lacks diagnostic registers and uses active-low WK signaling.
Availability
TLE8458GXUMA1 is available at Aetrix Electronics and suitable for body control modules, seat position sensor interfaces, roof module actuation, and steering column controls requiring stable component supply across automotive production lifecycles.
Supply support for TLE8458GXUMA1 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 automotive, power management, and security solutions, with global manufacturing and qualification infrastructure aligned to IATF 16949.
The TLE8458GXUMA1 belongs to Infineon's automotive Smart Power Technology (SPT®) product line, designed specifically for robust, integrated LIN node solutions in harsh-temperature, high-reliability vehicle subsystems.
FAQ
What is the maximum allowable capacitance on the VCC pin?
The datasheet specifies a minimum decoupling capacitor of 470 nF with ESR < 6 Ω at 10 kHz. While larger capacitors (e.g., 1 µF) may be used for improved transient response, exceeding 10 µF risks violating startup timing requirements and triggering false overcurrent protection during power-up. Ceramic X7R types are recommended.
Can the TLE8458GXUMA1 operate with a 3.3 V microcontroller?
No - the TLE8458GXUMA1 integrates a fixed 5 V LDO regulator and is not compatible with 3.3 V logic systems. For 3.3 V applications, Infineon offers the TLE8458GV33 variant (marked "8458GV3"), which provides a regulated 3.3 V output with identical pinout and functional behavior.
How does the TLE8458GXUMA1 handle LIN bus short-to-battery faults?
The device includes internal circuitry that limits current and isolates the LIN driver during short-to-battery events. It continues normal operation on the VCC rail and remains capable of wake-up via WK pin, but LIN communication is suspended until the fault clears and thermal recovery occurs.
Is the WK pin compatible with open-drain microcontroller outputs?
Yes - the WK pin has an internal pull-up resistor and is active-low, making it directly compatible with open-drain GPIO outputs. No external pull-up is required; however, the MCU must drive WK low for ≥100 ns to ensure reliable edge detection and wake-up initiation.
TLE8458GXUMA1 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:
- LINbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Full
- Receiver Hysteresis:
- -
- Data Rate:
- 20kbps
- Voltage - Supply:
- 7V ~ 27V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8-16
TLE8458GXUMA1 FAQ
1.How can I place an order for TLE8458GXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE8458GXUMA1 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 TLE8458GXUMA1 reliable?
The price and inventory of TLE8458GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE8458GXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE8458GXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE8458GXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE8458GXUMA1?
TLE8458GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE8458GXUMA1 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 TLE8458GXUMA1?
For technical support, including TLE8458GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE8458GXUMA1 requirements.
6.How does Aetrix verify that TLE8458GXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE8458GXUMA1 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 TLE8458GXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE8458GXUMA1?
All TLE8458GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE8458GXUMA1, 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 TLE8458GXUMA1 part is unused and in its original packaging.
Return procedure for TLE8458GXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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