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Infineon Technologies TLE8458GUV33XUMA1
- Part No.:
- TLE8458GUV33XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE8458GUV33XUMA1.pdf
- Description:
- IC TRANSCEIVER FULL 1/1 PGDSO816
- Quantity:
- Payment:
- Shipping:
Inventory:1,685
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Product details
Overview
TLE8458GUV33XUMA1 from Infineon Technologies is an automotive-grade LIN transceiver with integrated 3.3 V low-dropout voltage regulator, supporting LIN 2.1 bus communication and supplying up to 50 mA to microcontrollers. It operates across 7–27 V battery supply, features Sleep/Stop/Normal modes, and enables wake-up via LIN bus or local WK pin. Used in body control modules for door lock actuators and seat position sensors.
For engineers reviewing the TLE8458GUV33XUMA1 datasheet, TLE8458GUV33XUMA1 pinout, TLE8458GUV33XUMA1 application, or TLE8458GUV33XUMA1 equivalent, key selection criteria include integrated LDO output voltage (3.3 V), quiescent current in Stop Mode (≤ 10 µA), LIN bus fault protection (short-to-ground/Vbat), ESD robustness (±10 kV HBM on LIN/WK/VS), and AEC-Q100 qualification.
Technical Context
The device integrates a LIN physical layer transceiver compliant with ISO 17987-4 (LIN 2.1) and a monolithic 3.3 V LDO regulator using Infineon's Smart Power Technology (SPT®). Its mode controller supports five states-Standby, Normal (with Slope and Software Flash submodes), Stop, and Sleep-with deterministic transitions triggered by EN, WK, or bus activity.
Bus-side protection includes short-to-battery and short-to-ground tolerance, while thermal shutdown activates at 150–200 °C with 10 K hysteresis for LIN section and 35 K for VCC section. The RxD output is active-low during dominant bus states and asserts wake-up pulses on falling edges of WK or LIN signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Compliance | ISO 17987-4 (LIN 2.1) compliant physical layer; ensures interoperability with standard LIN master nodes and slaves. |
| VCC Output Voltage | 3.3 V ±2%; powers external MCU or logic with tight regulation over load (0–50 mA) and input (7–27 V). |
| Quiescent Current (Stop) | ≤10 µA; enables ultra-low-power vehicle sleep-state operation without compromising wake-up capability. |
| ESD Robustness (LIN/WK/VS) | ±8 kV HBM; withstands harsh automotive ESD events without latch-up or functional interruption. |
| Thermal Shutdown (LIN) | 150–200 °C activation with 10 K hysteresis; prevents permanent damage during sustained overload or ambient overheating. |
| Wake-up Sources | Local WK pin (negative-edge triggered) and LIN bus activity; both assert RxD/TxD pulses to notify MCU of pending communication. |
| Supply Range (VS) | 7–27 V operational; supports wide automotive battery range including cold-crank (6.5 V) and load-dump (40 V transient tolerant). |
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 receive signal; pulses low after wake-up event on WK or LIN to alert MCU. |
| 2 EN | Enable Input | High-active enable with internal pull-down; controls entry into Normal mode and disables VCC in Standby. |
| 3 WK | Local Wake-up Input | Negative-edge triggered with internal pull-up; initiates wake-up sequence independent of bus activity. |
| 4 TxD | Transmit Data Input | MCU-driven LIN transmit signal; dominant state = low; pulled down internally when inactive. |
| 5 GND | Ground Reference | Common return path for analog and digital sections; connects to PCB ground plane for noise immunity. |
| 6 LIN | Bus I/O Terminal | Bi-directional LIN bus interface with integrated termination and pull-up current source; short-to-ground protected. |
| 7 VS | Battery Supply Input | Main power input (7–40 V); feeds both LDO and transceiver; includes overvoltage and reverse-polarity protection. |
| 8 VCC | Regulated Output | 3.3 V LDO output (50 mA max); requires ≥470 nF ceramic decoupling capacitor with ESR < 6 Ω at 10 kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LIN + LDO | Single-chip solution reduces BOM count and PCB area vs. discrete transceiver + regulator; eliminates inter-stage routing noise. |
| Multi-mode Power Management | Five configurable operating modes (Standby/Normal/Stop/Sleep/Software Flash) enable precise energy budgeting per vehicle subsystem state. |
| Bus Fault Protection | Withstands LIN short-to-ground and short-to-Vbat faults without latch-up or degradation; supports fail-safe diagnostics. |
| EMI/EMC Performance | Low electromagnetic emission (EME) and high immunity (EMI) validated per CISPR 25 Class 5; no external filtering required. |
| AEC-Q100 Qualified | Qualified to Grade 1 (-40 °C to +125 °C ambient); meets automotive reliability, lifetime, and stress-test requirements. |
Applications
| Body Control Module (BCM) | Seat Position Sensor Interface |
|---|---|
|
Use Scenario: Centralized control unit managing door locks, window lifts, and interior lighting via LIN subnetworks. IC Role / Device Role / Timing Role: LIN transceiver handles physical-layer signaling; integrated 3.3 V LDO powers attached MCU and sensor interface circuitry. Use Value: Reduces system-level quiescent current to ≤10 µA in Stop Mode while retaining bus-initiated wake-up-critical for meeting EU CO₂ fleet targets. |
Use Scenario: LIN-connected potentiometric or Hall-effect seat position sensor feeding feedback to occupant detection system. IC Role / Device Role / Timing Role: Provides isolated, ESD-hardened LIN bus interface and stable 3.3 V supply to sensor signal conditioning IC. Use Value: ±8 kV HBM ESD rating prevents field failures from assembly handling or service interventions near seat mechanisms. |
| Roof Module Actuator Control | Steering Column Switch Interface |
|
Use Scenario: Motorized sunroof or panoramic roof actuator controlled via LIN from body domain controller. IC Role / Device Role / Timing Role: Transceiver relays command frames from BCM; LDO supplies actuator driver logic and position feedback ADC. Use Value: Short-to-ground protection on LIN pin avoids latch-up during mechanical jamming events that cause bus shorts. |
Use Scenario: LIN-linked multifunction switch cluster on steering column sending wiper, light, and cruise commands. IC Role / Device Role / Timing Role: Enables low-latency, noise-immune communication between switch inputs and central gateway MCU. Use Value: 7–27 V VS operating range maintains functionality during cold-crank (6.5 V) and alternator load-dump (≥35 V) transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LIN transceiver + LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE7259-3GE | Standalone LIN transceiver (no LDO); requires external 5 V regulator; same pinout but different VCC handling. | Used where system already provides regulated 5 V rail; lacks integrated power conversion, increasing component count. | Select when existing architecture uses 5 V MCU and discrete regulation is preferred for thermal or layout reasons. |
| TLE9471-2 | 3-in-1 system basis chip (SBC) with LIN, CAN FD, and 3.3 V/5 V dual LDOs; larger QFN package (32-pin). | Targets mixed-protocol domains (e.g., gateway nodes); over-specified for pure LIN-only endpoints. | Choose when future CAN FD integration or higher integration density justifies cost and footprint increase. |
Compared with TLE7259-3GE, TLE8458GUV33XUMA1 eliminates external regulator BOM and reduces standby current by >50%; versus TLE9471-2, it offers lower cost and smaller footprint for LIN-only nodes without CAN FD need.
Availability
TLE8458GUV33XUMA1 is available at Aetrix Electronics and suitable for body control modules, seat position sensor interfaces, roof module actuator control, and steering column switch interfaces requiring stable component supply across automotive production lifecycles.
Supply support for TLE8458GUV33XUMA1 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 automotive system basis chips (SBCs) product line, designed specifically for LIN-based body electronics nodes requiring integrated power and communication in harsh environments.
FAQ
What is the maximum output current of the integrated 3.3 V regulator?
The TLE8458GUV33XUMA1 delivers up to 50 mA from its VCC pin under nominal conditions (VS = 13.5 V, Tj = 25 °C). Output current decreases linearly above junction temperature of 100 °C due to thermal derating, and drops to zero above 150 °C during thermal shutdown. The regulator remains enabled in Normal and Sleep modes but is disabled in Standby and Stop modes.
How does wake-up work when the device is in Sleep Mode?
In Sleep Mode, the TLE8458GUV33XUMA1 monitors both the LIN bus and WK pin. A falling edge on WK triggers immediate wake-up, pulling RxD and TxD low for 100 µs to signal the MCU. Bus wake-up occurs when a valid LIN header (0x00 or 0x80) is detected, causing RxD to pulse low. Both events exit Sleep Mode within 10 µs and restore VCC output.
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, as specified in Section 3.2 of the datasheet. This capacitor stabilizes the LDO output during load transients and suppresses high-frequency noise; omission risks output oscillation or failure to regulate under dynamic MCU load.
Does the device support LIN 2.2A or SAE J2602?
No-the TLE8458GUV33XUMA1 is certified only to LIN 2.1 (ISO 17987-4). It does not implement the enhanced error detection, extended checksum, or slave node identification features defined in LIN 2.2A or SAE J2602. For compliance with those standards, Infineon recommends the TLE9471-2 or TLF35584 families.
TLE8458GUV33XUMA1 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
TLE8458GUV33XUMA1 FAQ
1.How can I place an order for TLE8458GUV33XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE8458GUV33XUMA1 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 TLE8458GUV33XUMA1 reliable?
The price and inventory of TLE8458GUV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE8458GUV33XUMA1 is usually 5 days.
3.What payment methods are accepted for TLE8458GUV33XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE8458GUV33XUMA1 transactions.
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4.How is shipping managed for TLE8458GUV33XUMA1?
TLE8458GUV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE8458GUV33XUMA1 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 TLE8458GUV33XUMA1?
For technical support, including TLE8458GUV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE8458GUV33XUMA1 requirements.
6.How does Aetrix verify that TLE8458GUV33XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE8458GUV33XUMA1 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 TLE8458GUV33XUMA1 meets industry standards.
7.What is the process for return or replacement of TLE8458GUV33XUMA1?
All TLE8458GUV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE8458GUV33XUMA1, 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 TLE8458GUV33XUMA1 part is unused and in its original packaging.
Return procedure for TLE8458GUV33XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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