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Infineon Technologies TLE8458GXUMA2
- Part No.:
- TLE8458GXUMA2
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE8458GXUMA2.pdf
- Description:
- IC TRANSCEIVER FULL 1/1 PGDSO816
- Quantity:
- Payment:
- Shipping:
Inventory:3,058
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Product details
Overview
TLE8458GXUMA2 from Infineon Technologies is an automotive-grade LIN transceiver with integrated 5 V low-dropout voltage regulator, compliant with LIN 2.1 specification, supporting 50 mA output current, bus wake-up and local WK pin wake-up, and operating across 7–27 V supply range. It supplies microcontrollers while driving LIN buses in body electronics modules such as door control units and seat position sensors.
For engineers reviewing the TLE8458GXUMA2 datasheet, TLE8458GXUMA2 pinout, TLE8458GXUMA2 application, or TLE8458GXUMA2 equivalent, key selection criteria include LIN bus fault tolerance (short-to-ground/Vbat), ultra-low quiescent current in Stop mode (≤10 µA), thermal shutdown thresholds (150–200 °C), and AEC-Q100 qualification for under-hood deployment.
Technical Context
The TLE8458GXUMA2 integrates a LIN physical layer transceiver and a monolithic LDO on a single Smart Power Technology (SPT®) die. Its receiver includes bus voltage monitoring, dominant timeout detection, and undervoltage protection; the transmitter supports slope-controlled dominant transitions per LIN 2.1 timing requirements.
Mode control is managed via EN and WK pins, enabling five operational states: Standby, Normal (with Slope/Software Flash submodes), Stop, and Sleep. Wake-up events trigger state transitions with defined RxD/TxD pin behavior, and overtemperature protection disables VCC and LIN outputs independently at junction temperatures ≥150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Compliance | LIN 2.1 compliant; meets all physical layer timing, voltage thresholds, and fault behavior requirements for automotive serial bus networks. |
| VCC Output | 5 V ±2%, 50 mA max; powers MCU core logic directly; disabled in Sleep mode to reduce system standby power. |
| Quiescent Current (Stop) | ≤10 µA typical; enables battery-sensitive applications like parked vehicle intrusion detection without draining 12 V battery. |
| Wake-up Sources | Bus-level dominant pulse or negative edge on WK pin; both generate synchronized RxD/TxD assertion for MCU boot readiness. |
| ESD Robustness | ±10 kV HBM on LIN/VS/WK pins; eliminates need for external TVS diodes in cost-constrained body control modules. |
| Thermal Shutdown | VCC and LIN sections shut down independently at 150–200 °C with 35 K hysteresis (VCC) and 10 K hysteresis (LIN); prevents latch-up during thermal overload. |
| Supply Range | 7–27 V normal operation; extends functionality to cold-crank (5.5 V extended range) and load-dump (40 V absolute max) conditions. |
Pinout & Package
Package: PG-DSO-8-16 (8-pin exposed pad SOIC variant, RoHS-compliant, AEC-Q100 qualified).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RxD | Receive Data Output | Active-low LIN bus data output; asserts low after wake-up event to signal MCU readiness; internal pull-down. |
| 2 EN | Enable Input | Active-high enable; integrated pull-down; controls entry into Normal mode; high-impedance during Stop/Sleep. |
| 3 WK | Local Wake-up Input | Active-low, negative-edge triggered; internal pull-up; initiates wake-up independent of bus activity (e.g., sensor interrupt). |
| 4 TxD | Transmit Data Input | Active-low MCU transmit input; dominant state = low; slope-controlled rise/fall per LIN 2.1; internal pull-down. |
| 5 GND | Ground Reference | Primary return path for LIN driver, LDO, and internal logic; must be connected to low-impedance chassis ground. |
| 6 LIN | Bus I/O Terminal | Single-wire bidirectional LIN interface; includes internal termination and pull-up current source; short-to-ground protected. |
| 7 VS | Battery Supply Input | Main 7–27 V input; feeds LDO and LIN driver; withstands 40 V transient; integrated overvoltage clamp. |
| 8 VCC | Regulated Output | 5 V LDO output; requires ≥470 nF ceramic decoupling capacitor (ESR < 6 Ω @ 10 kHz); disabled in Sleep mode. |
Key Features
| Feature | Design Value |
|---|---|
| LIN + LDO integration | Reduces BOM count by eliminating discrete 5 V regulator; cuts PCB area by ~30% vs. dual-chip solution. |
| Bus and local wake-up | Enables two independent wake sources-LIN frame detection and external sensor edge-without MCU polling overhead. |
| Software Flash mode | Allows firmware update over LIN bus while maintaining bus communication integrity and regulator stability. |
| Short-to-ground/Vbat protection | Prevents device destruction during LIN bus short circuits; no external current-limiting resistors required. |
| AEC-Q100 Grade 1 | Qualified for -40 °C to +125 °C ambient operation; validated for 1000+ thermal cycles and 1000 h HTOL stress. |
Applications
| Door Control Module | Seat Position Sensor |
|---|---|
Use Scenario: Centralized control of power windows, locks, and mirrors via LIN cluster. IC Role / Device Role / Timing Role: LIN transceiver handles serial command framing and error checking; integrated 5 V LDO powers window motor MCU and Hall-effect position sensors. Use Value: Eliminates separate voltage regulator, reducing component count and improving cold-crank reliability below 7 V. |
Use Scenario: Real-time feedback of seat fore/aft and recline angle to body control unit. IC Role / Device Role / Timing Role: LIN PHY interfaces with potentiometer or rotary encoder; WK pin detects mechanical adjustment events for immediate wake-up. Use Value: Achieves ≤10 µA Stop-mode current, extending battery life in parked vehicle scenarios up to 90 days. |
| Roof Module (Sunroof) | Trunk Lid Actuator |
Use Scenario: Sunroof open/close and tilt control using LIN commands from HVAC or convenience module. IC Role / Device Role / Timing Role: LIN transceiver manages bidirectional status reporting and safety timeout; VCC powers sunroof MCU and limit switch interface. Use Value: ±10 kV HBM ESD rating ensures robustness against static discharge during assembly and service. |
Use Scenario: Motorized trunk lid actuation with anti-pinch detection and position feedback. IC Role / Device Role / Timing Role: LIN interface relays CAN-to-LIN gateway commands; bus wake-up resumes operation after lid closure detection. Use Value: Independent thermal shutdown (VCC/LIN) prevents latch-up during motor stall-induced overheating. |
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 |
|---|---|---|---|
| TLIN1029DR | 3.3 V LDO output (not 5 V); supports LIN 2.2A; lower quiescent current (3 µA Stop mode); no Software Flash mode. | Requires 3.3 V MCU; better suited for new designs targeting lowest possible sleep current; lacks flash reprogramming capability. | Select when migrating to 3.3 V architecture and prioritizing ultra-low-power parked mode over field firmware updates. |
| TLE7259-3GE | Standalone LIN transceiver only (no LDO); requires external 5 V regulator; identical pinout and WK/EN logic; same AEC-Q100 Grade 1 rating. | Increases BOM count and PCB area; allows independent regulation optimization but adds thermal and layout complexity. | Select when existing design already uses discrete LDO and requires drop-in replacement without regulator redesign. |
Compared with TLIN1029DR and TLE7259-3GE, the TLE8458GXUMA2 uniquely combines 5 V LDO integration, Software Flash mode, and bus/local wake-up in a single AEC-Q100 package-enabling simplified architecture for legacy 5 V MCU-based body electronics.
Availability
TLE8458GXUMA2 is available at Aetrix Electronics and suitable for door control modules, seat position sensors, roof modules, and trunk lid actuators requiring stable component supply across automotive production lifecycles.
Supply support for TLE8458GXUMA2 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 automotive qualification infrastructure.
The TLE8458GXUMA2 belongs to Infineon's automotive LIN transceiver product line, designed specifically for body electronics applications 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 normal operation specified from 7 V to 27 V. This accommodates automotive load-dump transients up to 40 V without damage, while maintaining functional operation across cold-crank (down to 5.5 V extended range) and nominal battery conditions.
Does the TLE8458GXUMA2 support LIN 2.2 or later revisions?
No-the device is explicitly qualified to LIN 2.1 specification only, as confirmed in Section 1 Overview and Section 7.1.3 of the datasheet. It does not implement LIN 2.2A features such as enhanced checksum or slave node position detection.
How is wake-up latency measured from bus activity to RxD assertion?
From dominant bus edge to valid RxD low assertion is ≤10 µs, verified in Figure 3 (Operation Mode State Diagram) and Table 7.2 Electrical Characteristics. This timing ensures MCU wake-up synchronization with LIN frame start without missing header bytes.
Can the VCC output be used to power external peripherals beyond the MCU?
Yes-VCC delivers up to 50 mA at 5 V ±2%, sufficient for small-signal sensors, level shifters, or LED drivers. However, external loads must remain within total 50 mA limit and observe CVcc ≥470 nF decoupling with ESR <6 Ω at 10 kHz to maintain stability.
TLE8458GXUMA2 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
TLE8458GXUMA2 FAQ
1.How can I place an order for TLE8458GXUMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE8458GXUMA2 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 TLE8458GXUMA2 reliable?
The price and inventory of TLE8458GXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE8458GXUMA2 is usually 5 days.
3.What payment methods are accepted for TLE8458GXUMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE8458GXUMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE8458GXUMA2?
TLE8458GXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE8458GXUMA2 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 TLE8458GXUMA2?
For technical support, including TLE8458GXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE8458GXUMA2 requirements.
6.How does Aetrix verify that TLE8458GXUMA2 is sourced from the original manufacturer or authorized distributors?
All TLE8458GXUMA2 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 TLE8458GXUMA2 meets industry standards.
7.What is the process for return or replacement of TLE8458GXUMA2?
All TLE8458GXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE8458GXUMA2, 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 TLE8458GXUMA2 part is unused and in its original packaging.
Return procedure for TLE8458GXUMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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