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Infineon Technologies TLE8458GUXUMA1
- Part No.:
- TLE8458GUXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE8458GUXUMA1.pdf
- Description:
- IC TRANSCEIVER FULL 1/1 PGDSO816
- Quantity:
- Payment:
- Shipping:
Inventory:1,401
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Product details
Overview
TLE8458GUXUMA1 from Infineon Technologies is an automotive-grade LIN transceiver with integrated 5 V low-dropout voltage regulator (LDO), designed for microcontroller power supply and LIN bus communication in body electronics systems. It delivers 50 mA regulated output, supports LIN 2.1 compliance, operates from 7–27 V battery supply, and achieves 8 µA quiescent current in Stop Mode. Used in door modules, seat control units, and climate actuators where space-constrained dual-function integration is critical.
For engineers reviewing the TLE8458GUXUMA1 datasheet, TLE8458GUXUMA1 pinout, TLE8458GUXUMA1 application, or TLE8458GUXUMA1 equivalent, key selection criteria include LIN bus fault tolerance (short-to-ground/Vbat protection), wake-up capability via LIN bus or local WK pin, thermal shutdown thresholds (150–200 °C), ESD robustness (±10 kV HBM on VS/WK/LIN), and AEC-Q100 qualification for automotive deployment.
Technical Context
The TLE8458GUXUMA1 integrates a LIN physical layer transceiver and a monolithic 5 V LDO on a single die using Infineon's Smart Power Technology (SPT®). Its transceiver implements dominant-state detection, TxD time-out, undervoltage monitoring, and bus short-circuit protection - all compliant with LIN 2.1 specification P_4.1.1 and P_4.2.3. The LDO provides regulated 5 V ±2% output at up to 50 mA with <6 Ω ESR capacitor support and automatic disable in Sleep Mode.
Mode control is managed by EN, WK, and LIN bus activity, enabling five operational states: Standby, Normal (with Slope/Software Flash submodes), Stop, Sleep, and Wake-up transitions. Thermal protection includes independent VCC and LIN thermal shutdowns with hysteresis (35 K and 10 K respectively), and overtemperature shutdown triggers at junction temperatures between 150–200 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Compliance | LIN 2.1 compliant; meets Param 11 P_4.1.1 and P_4.2.3 for bus voltage, timing, and fault behavior. |
| Regulated Output | 5 V ±2% at 50 mA; requires ≥470 nF decoupling capacitor with ESR <6 Ω at 10 kHz. |
| Quiescent Current | 8 µA in Stop Mode; enables ultra-low-power vehicle-off operation in body control modules. |
| ESD Robustness | ±10 kV HBM on VS, WK, LIN pins per IEC61000-4-2; ensures survivability during assembly and service. |
| Operating Supply | 7–27 V on VS pin; extended range up to 40 V allows compatibility with 12 V and 24 V automotive systems. |
| Thermal Shutdown | VCC and LIN sections independently shut down at 150–200 °C with 35 K and 10 K hysteresis respectively. |
| AEC Qualification | AEC-Q100 qualified; rated for -40 °C to +150 °C junction temperature in harsh automotive environments. |
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 receive signal; pulls low in dominant state; asserts after wake-up event on BUS or WK. |
| 2 EN | Enable Input | Active-high enable with internal pull-down; sets device to Normal Operation Mode when driven HIGH. |
| 3 WK | Local Wake-up Input | Active-low, negative-edge triggered input with internal pull-up; initiates wake-up from Sleep/Stop Mode. |
| 4 TxD | Transmit Data Input | Active-low LIN transmit input with internal pull-down; LOW in dominant state; active after WK wake-up. |
| 5 GND | Ground Reference | Primary ground return for analog and digital circuitry; connects to system chassis ground plane. |
| 6 LIN | Bus Input/Output | Bi-directional LIN bus interface with internal termination and pull-up current source; tolerant of short-to-ground/Vbat. |
| 7 VS | Battery Supply Input | Main 7–40 V input; powers transceiver and LDO; includes overvoltage and reverse-polarity protection logic. |
| 8 VCC | Regulated Output | 5 V LDO output; supplies external MCU or peripherals; disabled automatically in Sleep Mode to reduce leakage. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LIN + LDO | Single-chip solution eliminates discrete regulator and transceiver, reducing BOM count and PCB area by >30% in door module designs. |
| Multi-mode Power Management | Five configurable modes (Normal, Stop, Sleep, Standby, Software Flash) enable dynamic current scaling from 8 µA to full operation. |
| Dual Wake-up Sources | Simultaneous wake-up capability via LIN bus activity or local WK pin edge, supporting both network- and sensor-initiated events. |
| Automotive Fault Protection | Short-to-ground, short-to-Vbat, and overtemperature protection on LIN and VCC paths prevent latch-up and permanent damage. |
| EMI-Optimized Design | SPT® technology delivers high electromagnetic immunity (EMI) and low electromagnetic emission (EME) across 150 kHz–1 GHz band. |
Applications
| Door Control Module | Seat Position Memory System |
|---|---|
|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting via LIN network. IC Role / Device Role / Timing Role: LIN transceiver handles protocol framing and bus arbitration; integrated 5 V LDO powers the local MCU and position sensors. Use Value: Reduces component count by eliminating separate 5 V regulator, cuts standby current to 8 µA, and maintains wake-up responsiveness via LIN or local switch. |
Use Scenario: Storing and recalling driver seat position settings using LIN-connected motor drivers and potentiometers. IC Role / Device Role / Timing Role: Provides LIN physical layer connectivity and stable 5 V supply to EEPROM, MCU, and analog front-end circuits. Use Value: Enables reliable non-volatile memory access during vehicle-off state with guaranteed wake-up from LIN command or seat adjustment switch. |
| Climate Control Actuator | Rearview Mirror Adjustment Unit |
|
Use Scenario: Driving HVAC blend door actuators and temperature sensors in compact cabin modules. IC Role / Device Role / Timing Role: LIN transceiver manages command/response timing per LIN 2.1; LDO supplies actuator driver ICs and thermistor signal conditioning. Use Value: Maintains 5 V regulation under load transients (e.g., motor startup), while ESD-hardened LIN pins survive field handling and connector mating cycles. |
Use Scenario: Controlling electrochromic mirror dimming and motorized tilt via LIN commands from central body controller. IC Role / Device Role / Timing Role: Acts as LIN node interface and local 5 V power source for mirror driver ICs and ambient light sensor ADC. Use Value: Ensures consistent 5 V rail during LIN bus noise events; thermal shutdown prevents damage during prolonged mirror motor stall conditions. |
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 integrated LDO); requires external 5 V regulator; same PG-DSO-8-16 footprint and pinout. | Used where system already provides regulated 5 V; increases BOM but offers independent LDO selection and thermal management. | Select when design requires flexibility in LDO selection, higher output current (>50 mA), or discrete thermal monitoring. |
| MC33661 | ON Semiconductor LIN transceiver with integrated 5 V LDO; 60 mA output; different pinout (SOIC-8); no software flash mode or WK pin. | Targeted at cost-sensitive non-AEC applications; lacks local wake-up input and LIN 2.1 software flash programming support. | Select only for non-automotive or non-AEC projects requiring basic LIN+LDO functionality without wake-up or diagnostics features. |
Compared with TLE7259-3GE and MC33661, the TLE8458GUXUMA1 uniquely combines AEC-Q100 qualification, dual wake-up sources (bus + WK), software flash mode, and 8 µA Stop Mode current - making it optimal for space- and power-constrained automotive nodes requiring full LIN 2.1 feature set.
Availability
TLE8458GUXUMA1 is available at Aetrix Electronics and suitable for door control modules, seat position memory systems, and climate control actuators requiring stable component supply across automotive production lifecycles.
Supply support for TLE8458GUXUMA1 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 TLE8458GUXUMA1 belongs to Infineon's automotive LIN transceiver product line, engineered specifically for body electronics nodes needing integrated power and communication in AEC-Q100-compliant packages.
FAQ
What is the maximum allowable ESR for the VCC decoupling capacitor?
The VCC pin requires a minimum 470 nF ceramic capacitor with ESR less than 6 Ω at 10 kHz to ensure stable LDO regulation and transient response. Higher ESR may cause output ripple exceeding ±2%, leading to MCU brown-out or reset events during LIN bus activity or load switching.
How does the TLE8458GUXUMA1 handle LIN bus short-to-battery faults?
The LIN pin incorporates internal short-to-battery protection that limits current to safe levels and disables the driver stage without latching. After fault removal, the transceiver automatically recovers within one LIN frame period (≤20 ms), maintaining communication integrity without MCU intervention.
Can the WK pin be used without external pull-up resistors?
Yes - the WK pin has an internal pull-up resistor (~100 kΩ typical), so no external pull-up is required for basic wake-up functionality. However, in noisy environments or long PCB traces, a 10–47 kΩ external pull-up improves noise immunity and ensures clean edge detection for reliable wake-up triggering.
Is the TLE8458GUXUMA1 compatible with LIN 2.2A or LIN 2.2B specifications?
The TLE8458GUXUMA1 is specified and tested for LIN 2.1 compliance only. While its electrical characteristics (e.g., bus voltage range, slew rate, timeout behavior) align closely with LIN 2.2A/B, official qualification and functional testing were performed exclusively against LIN 2.1 requirements per the Rev. 1.1 datasheet.
TLE8458GUXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
TLE8458GUXUMA1 FAQ
1.How can I place an order for TLE8458GUXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE8458GUXUMA1 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 TLE8458GUXUMA1 reliable?
The price and inventory of TLE8458GUXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE8458GUXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE8458GUXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE8458GUXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE8458GUXUMA1?
TLE8458GUXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE8458GUXUMA1 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 TLE8458GUXUMA1?
For technical support, including TLE8458GUXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE8458GUXUMA1 requirements.
6.How does Aetrix verify that TLE8458GUXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE8458GUXUMA1 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 TLE8458GUXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE8458GUXUMA1?
All TLE8458GUXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE8458GUXUMA1, 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 TLE8458GUXUMA1 part is unused and in its original packaging.
Return procedure for TLE8458GUXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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