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Infineon Technologies TLE8458GV33XUMA1
- Part No.:
- TLE8458GV33XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE8458GV33XUMA1.pdf
- Description:
- IC TRANSCEIVER FULL 1/1 PGDSO816
- Quantity:
- Payment:
- Shipping:
Inventory:1,896
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Product details
Overview
TLE8458GV33XUMA1 from Infineon Technologies is an automotive-grade LIN transceiver with integrated 3.3 V low-dropout voltage regulator (LDO), designed for microcontroller power supply and LIN bus communication in vehicle body electronics. It delivers 50 mA regulated output, supports Normal/Stop/Sleep modes, features ±10 kV HBM ESD robustness, and enables wake-up via LIN bus or local WK pin. Used in door modules, seat control units, and lighting nodes.
For engineers reviewing the TLE8458GV33XUMA1 datasheet, TLE8458GV33XUMA1 pinout, TLE8458GV33XUMA1 application, or TLE8458GV33XUMA1 equivalent, key selection criteria include its dual-function integration (LIN transceiver + 3.3 V LDO), ultra-low 8 µA quiescent current in Stop Mode, AEC-Q100 qualification, and pin compatibility with TLE7259-3GE for drop-in replacement in legacy designs.
Technical Context
The device integrates a LIN 2.1-compliant transceiver and a monolithic 3.3 V LDO on a single Smart Power Technology (SPT®) die. The transceiver includes bus short-to-ground/Vbat protection, dominant timeout detection, and undervoltage monitoring. The LDO provides stable 3.3 V output with <6 Ω ESR capacitor support and disables automatically in Sleep Mode.
Mode control is managed through EN and WK pins, enabling five operational states: Standby, Normal (with Slope/Software Flash submodes), Stop, Sleep, and Wake-up transitions. Thermal shutdown triggers at 150–200 °C for both VCC and LIN sections, with hysteresis of 35 K and 10 K respectively, ensuring safe operation under overload or ambient extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Compliance | LIN 2.1 compliant; meets all physical layer requirements including slew rate control and fault tolerance for automotive networks. |
| Regulator Output | 3.3 V ±2 % at 50 mA; supports MCU core logic supply with CVcc ≥ 470 nF and ESR < 6 Ω at 10 kHz. |
| Quiescent Current | 8 µA in Stop Mode; enables extended battery life in always-on vehicle domains like comfort systems. |
| ESD Robustness | ±10 kV HBM on all pins; eliminates need for external TVS diodes in standard automotive PCB layouts. |
| Wake-up Sources | Local WK pin (negative edge triggered) and LIN bus activity; allows selective subsystem activation without MCU polling. |
| Thermal Protection | VCC and LIN thermal shutdown at 150–200 °C with hysteresis; prevents latch-up during sustained overtemperature events. |
| AEC Qualification | AEC-Q100 Grade 1 (−40 °C to +125 °C ambient); validated for under-hood and cabin-mounted automotive ECUs. |
Pinout & Package
Package: PG-DSO-8-16 (8-pin exposed pad SOIC variant, RoHS-compliant, moisture sensitivity level 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RxD | Receive Data Output | Active-low LIN bus data output; asserts low after wake-up event on BUS or WK pin; requires external pull-up in Standby. |
| 2 EN | Enable Input | Active-high enable with internal pull-down; controls mode transition between Standby and Normal Operation. |
| 3 WK | Local Wake-up Input | Active-low, negative-edge triggered input with internal pull-up; initiates wake-up from Sleep/Stop modes independently of bus activity. |
| 4 TxD | Transmit Data Input | Active-low MCU transmit signal input; drives LIN bus dominant state; pulled low internally when inactive. |
| 5 GND | Ground Reference | Primary return path for regulator and transceiver circuits; connects to PCB ground plane for EMI suppression. |
| 6 LIN | Bus I/O Terminal | Single-wire bidirectional LIN interface with integrated termination and pull-up current source; tolerant to bus shorts. |
| 7 VS | Battery Supply Input | Input for 7–27 V nominal automotive battery rail; supports extended range up to 40 V for load dump immunity. |
| 8 VCC | Regulated Output | 3.3 V LDO output; powers external MCU or peripheral; disabled in Sleep Mode to minimize system leakage. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-function integration | Single-chip solution replaces discrete LIN transceiver + 3.3 V LDO, reducing BOM count by two components and PCB area by >30%. |
| Ultra-low-power Stop Mode | 8 µA total quiescent current enables compliance with ISO 19453-3 sleep current requirements for body control modules. |
| Robust wake-up architecture | Independent wake-up sources (bus and WK pin) allow flexible power management strategies without MCU intervention. |
| Integrated fault protection | Short-to-ground, short-to-Vbat, and overtemperature protection eliminate need for external protection circuitry. |
| EMI-optimized design | Low electromagnetic emission (EME) across broad frequency range and high immunity per CISPR 25 Class 5 testing. |
Applications
| Door Control Module | Seat Position Control |
|---|---|
|
Use Scenario: Centralized control of power windows, locks, and mirrors in passenger car doors. IC Role / Device Role / Timing Role: Provides regulated 3.3 V supply to MCU and handles LIN messaging for command/response with body controller. Use Value: Enables <8 µA system standby current while maintaining reliable wake-up from door handle sensor signals via WK pin. |
Use Scenario: Motorized adjustment of seat position, lumbar support, and memory functions. IC Role / Device Role / Timing Role: Supplies MCU and interfaces with LIN master for position feedback and actuator control commands. Use Value: Integrates bus interface and power regulation in space-constrained seat ECU, eliminating external LDO and reducing thermal stress. |
| Roof Module | Interior Lighting Node |
|
Use Scenario: Sunroof, panoramic roof, and interior ambient lighting control in premium vehicle cabins. IC Role / Device Role / Timing Role: Acts as LIN slave node with local wake-up capability for sunroof obstruction detection or rain sensor input. Use Value: Supports fast wake-up (<100 µs) from Sleep Mode upon local sensor event, meeting real-time response requirements. |
Use Scenario: Dimmable LED lighting clusters controlled via LIN network in dashboard and footwell areas. IC Role / Device Role / Timing Role: Powers lighting controller MCU and manages LIN status reporting (e.g., fault, brightness level) to body domain controller. Use Value: Delivers stable 3.3 V under wide input voltage swings (7–27 V), ensuring consistent LED driver performance during cranking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LIN transceiver + regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE7259-3GE | Standalone LIN 2.1 transceiver only; no integrated voltage regulator; requires external 3.3 V supply. | Suitable where separate power management is already implemented; lacks integrated LDO functionality. | Select when existing board layout uses discrete LDO and only transceiver upgrade is needed. |
| TLE9471-2ES | Next-generation LIN SBC with 5 V/3.3 V dual LDO outputs, higher ESD (±12 kV), and enhanced diagnostics. | Supports more complex diagnostics and multi-rail systems; larger package (PG-DSO-14) and higher cost. | Select for new designs requiring advanced fault reporting or dual-voltage MCU support. |
Compared with TLE7259-3GE, TLE8458GV33XUMA1 reduces component count and standby current; compared with TLE9471-2ES, it offers lower cost and smaller footprint but lacks diagnostic registers and dual-LDO flexibility.
Availability
TLE8458GV33XUMA1 is available at Aetrix Electronics and suitable for door control modules, seat position controllers, and roof modules requiring stable component supply across automotive production lifecycles.
Supply support for TLE8458GV33XUMA1 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 R&D infrastructure.
The TLE8458 family belongs to Infineon's Smart Power Technology (SPT®) automotive analog front-end portfolio, engineered specifically for body electronics LIN nodes requiring integrated power and communication in harsh environments.
FAQ
What is the maximum allowable input voltage on the VS pin?
The absolute maximum rating for VS is 40 V, with functional operation specified from 7 V to 27 V for normal LIN communication. Extended supply range up to 40 V is supported for transient conditions such as load dump, but prolonged operation above 27 V may affect regulator stability and thermal performance.
Can the TLE8458GV33XUMA1 operate with a 5 V microcontroller?
No - the TLE8458GV33XUMA1 provides only a fixed 3.3 V regulated output. It is not compatible with 5 V MCU logic interfaces unless level-shifting circuitry is added externally. For 5 V systems, the TLE8458G variant (5 V regulator) should be selected instead.
How does the wake-up function behave during Sleep Mode?
In Sleep Mode, the device monitors both the LIN bus and WK pin. A valid LIN frame or negative edge on WK triggers wake-up within 100 µs, transitioning to Normal Mode and asserting RxD/TxD outputs. Bus wake-up requires correct frame synchronization; WK wake-up is immediate and independent of bus state.
Is external decoupling required on the VCC pin?
Yes - a minimum 470 nF ceramic capacitor with ESR < 6 Ω at 10 kHz must be placed between VCC and GND, located within 5 mm of the pin. This ensures stable LDO regulation, suppresses switching noise, and maintains immunity during LIN bus transients.
TLE8458GV33XUMA1 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
TLE8458GV33XUMA1 FAQ
1.How can I place an order for TLE8458GV33XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE8458GV33XUMA1 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 TLE8458GV33XUMA1 reliable?
The price and inventory of TLE8458GV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE8458GV33XUMA1 is usually 5 days.
3.What payment methods are accepted for TLE8458GV33XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE8458GV33XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE8458GV33XUMA1?
TLE8458GV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE8458GV33XUMA1 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 TLE8458GV33XUMA1?
For technical support, including TLE8458GV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE8458GV33XUMA1 requirements.
6.How does Aetrix verify that TLE8458GV33XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE8458GV33XUMA1 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 TLE8458GV33XUMA1 meets industry standards.
7.What is the process for return or replacement of TLE8458GV33XUMA1?
All TLE8458GV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE8458GV33XUMA1, 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 TLE8458GV33XUMA1 part is unused and in its original packaging.
Return procedure for TLE8458GV33XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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