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Infineon Technologies TLE8457CLEXUMA1
- Part No.:
- TLE8457CLEXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-TDFN Exposed Pad
- Datasheet:
-
TLE8457CLEXUMA1.pdf
- Description:
- IC TRANSCEIVER 1/1 PGTSON81
- Quantity:
- Payment:
- Shipping:
Inventory:4,907
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Product details
Overview
TLE8457CLEXUMA1 from Infineon is a monolithic automotive-grade LIN transceiver with integrated 5 V/70 mA LDO regulator, compliant to ISO 17987-4 and SAE J2602, supporting up to 20 kBit/s data rate, ultra-low standby current (20 µA typical), and BUS short-to-VBAT/GND protection - deployed in window lifter control modules.
For engineers reviewing the TLE8457CLEXUMA1 datasheet, TLE8457CLEXUMA1 pinout, TLE8457CLEXUMA1 application, or TLE8457CLEXUMA1 equivalent, key selection criteria include LIN physical layer compliance, integrated VCC regulation capability, sleep-mode leakage (<16 µA), RESET assertion behavior under VCC undervoltage, and PG-TSON-8 package suitability for AOI and thermal management in battery-backed automotive ECUs.
Technical Context
The device integrates a LIN bus driver/receiver with bidirectional signal conditioning, dominant time-out logic on TxD, and a low-dropout linear regulator with internal bandgap reference and VCC undervoltage detection. It supports three deterministic operating modes-Normal, Standby, and Sleep-controlled via EN and TxD pins with defined state transitions and wake-up response timing.
Bus wake-up detection occurs via RxD pin assertion (logic low) without mode transition in Standby; overtemperature and overcurrent protection are implemented at silicon level with automatic recovery. ESD robustness reaches ±8 kV (IEC61000-4-2), and EMC performance is optimized for automotive environments per ISO 11452 and ISO 7637-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Data Rate | Up to 20 kBit/s - meets full-speed requirement of LIN 2.2A and J2602 physical layer |
| VCC Output Voltage | 5 V ±2% - powers MCU and peripherals directly; stable with 1 µF ceramic output capacitor |
| Regulator Current | 70 mA max - sufficient for typical 8-bit/16-bit automotive microcontrollers and sensors |
| Standby Current | 20 µA typical - enables always-on battery-supplied modules without excessive drain |
| Sleep Current | 16 µA max - ensures long-term parking mode compliance in body electronics |
| ESD Robustness | ±8 kV HBM - exceeds automotive system-level ESD immunity requirements |
| Operating Temp | −40 °C to +150 °C - qualified per AEC-Q100 Grade 0 for under-hood and cabin applications |
Pinout & Package
Package: PG-TSON-8 (leadless, thermally enhanced), RoHS-compliant, supports automated optical inspection (AOI) and PCB heat sink connection via exposed pad (connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VS | Battery supply input | Accepts 5.5–27 V DC; requires local decoupling capacitor for transient suppression |
| 2 EN | Enable control input | Pull-down enabled; logic high selects Normal mode; controls power-state transitions |
| 3 GND | Ground reference | Common return path for regulator, transceiver, and protection circuitry |
| 4 BUS | LIN bus interface | Single-wire bidirectional I/O with integrated slave termination; handles short-to-rail faults |
| 5 RxD | Receive data output | Reflects LIN bus signal in Normal mode; asserts logic low on bus wake-up in Standby |
| 6 TxD | Transmit data input | Microcontroller-driven; dominant time-out prevents bus lock-up during firmware hang |
| 7 NRST | Reset output | Open-drain, active-low; signals VCC undervoltage or reset pulse to MCU (tRST = 120 ms min) |
| 8 VCC | Regulated output | 5 V supply rail; powers external MCU/peripherals; monitored for UVLO and RESET generation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LDO regulator | Eliminates need for external 5 V supply; reduces BOM count and PCB area in space-constrained modules |
| Dominant time-out on TxD | Prevents indefinite bus dominance due to MCU fault; ensures network-level reliability without software intervention |
| VCC undervoltage detection with NRST | Provides hardware-controlled reset to MCU before VCC drops below functional threshold - no firmware dependency |
| Ultra-low sleep current (≤16 µA) | Enables permanent battery connection in door modules and sensors while meeting OEM quiescent current budgets |
| PG-TSON-8 thermal pad | Exposes die attach pad to PCB copper; improves thermal resistance by ~20 °C/W vs. DSO-8 for sustained 70 mA loads |
Applications
| Window Lifter Control | Rain & Light Sensor Module |
|---|---|
Use Scenario: Motorized window lift system powered directly from vehicle battery with MCU in stop mode between commands. IC Role / Device Role / Timing Role: LIN transceiver provides command reception and status reporting; integrated 5 V LDO supplies MCU and Hall sensor. Use Value: Standby current of 20 µA prevents battery drain during multi-day vehicle idle; BUS short-to-GND handling avoids fuse blow during cable chafing. |
Use Scenario: Ambient light and rain detection unit mounted behind rearview mirror, requiring always-on sensing and LIN communication. IC Role / Device Role / Timing Role: Acts as LIN slave node; regulates 5 V for optical sensor IC and MCU; wakes host MCU on bus activity. Use Value: Sleep current ≤16 µA meets OEM <20 µA park-mode spec; ±8 kV ESD protects against static discharge during service. |
| Sun Roof Control Module | Wiper Control Unit |
Use Scenario: Sun roof actuator with position feedback, controlled via LIN from body control module. IC Role / Device Role / Timing Role: LIN interface and local 5 V power source; NRST output resets MCU on battery voltage sag during engine cranking. Use Value: VCC undervoltage detection at 4.25 V triggers clean reset before MCU brownout; overtemperature shutdown prevents thermal runaway in sealed housing. |
Use Scenario: Front wiper motor controller receiving speed/delay commands over LIN bus, operating across temperature extremes. IC Role / Device Role / Timing Role: Physical layer transceiver with integrated termination; LDO powers wiper MCU and relay drivers. Use Value: −40 °C to +150 °C rating ensures operation in engine bay mounting; BUS short-to-VBAT protection maintains function after wiring fault. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LIN transceiver with integrated regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLIN1029DSWR | 3.3 V LDO output (not 5 V); higher 100 mA current capability; no integrated BUS termination | Requires external termination resistor; better suited for 3.3 V MCU systems with higher peripheral load | Select when MCU operates at 3.3 V and >70 mA load is expected; verify external termination layout |
| MC33662ELHR2 | 5 V LDO; 100 mA output; includes LIN wakeup filter and enhanced ESD (±12 kV); larger SOIC-8 package | Higher ESD margin and filtering support harsher ECU environments; lacks PG-TSON-8 thermal pad | Choose for extreme EMC zones (e.g., under-hood); accept larger footprint and reduced thermal performance |
Compared with TLIN1029DSWR and MC33662ELHR2, the TLE8457CLEXUMA1 uniquely combines 5 V/70 mA regulation, PG-TSON-8 thermal efficiency, and integrated LIN slave termination - making it optimal for compact, thermally constrained, battery-permanent automotive body modules.
Availability
TLE8457CLEXUMA1 is available at Aetrix Electronics and suitable for window lifter control, rain/light sensor modules, sun roof actuation, and wiper control units requiring stable component supply across automotive production lifecycles.
Supply support for TLE8457CLEXUMA1 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 qualification infrastructure.
The TLE8457CLEXUMA1 belongs to Infineon's Automotive Transceivers product line, engineered specifically for LIN-based body electronics where integration, ultra-low power, and AEC-Q100 reliability are mandatory.
FAQ
What is the function of the NRST pin?
The NRST pin is an open-drain, active-low reset output that signals VCC undervoltage events to the connected microcontroller. It asserts logic low when VCC falls below 4.25 V and remains low for ≥120 ms after VCC recovers above the threshold, ensuring reliable MCU reset sequencing independent of firmware.
Does TLE8457CLEXUMA1 support LIN 2.2A and SAE J2602 simultaneously?
Yes - the device is fully compliant with both ISO 17987-4 (LIN 2.2A) and SAE J2602 physical layer specifications, including bus voltage levels, slew rate control, dominant timeout, and wake-up pulse detection, validated per Infineon's automotive qualification test plan.
Can the PG-TSON-8 package be reflow soldered using standard lead-free profiles?
Yes - the PG-TSON-8 package is qualified for standard IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C for 30 seconds. The exposed thermal pad must be soldered to a dedicated GND copper pour for mechanical stability and thermal performance.
How does the device handle BUS short-to-VBAT conditions?
During BUS short-to-VBAT, the transceiver enters safe state: transmitter disables, receiver ignores bus signals, and no damage occurs up to 27 V. The device continues regulating VCC and monitoring EN/RxD, allowing wake-up and recovery once the fault clears - verified per ISO 7637-2 Pulse 5a testing.
TLE8457CLEXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-TDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- LIN
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- -
- Receiver Hysteresis:
- -
- Data Rate:
- 20kbps
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- PG-TSON-8-1
TLE8457CLEXUMA1 FAQ
1.How can I place an order for TLE8457CLEXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE8457CLEXUMA1 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 TLE8457CLEXUMA1 reliable?
The price and inventory of TLE8457CLEXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE8457CLEXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE8457CLEXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE8457CLEXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE8457CLEXUMA1?
TLE8457CLEXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE8457CLEXUMA1 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 TLE8457CLEXUMA1?
For technical support, including TLE8457CLEXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE8457CLEXUMA1 requirements.
6.How does Aetrix verify that TLE8457CLEXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE8457CLEXUMA1 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 TLE8457CLEXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE8457CLEXUMA1?
All TLE8457CLEXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE8457CLEXUMA1, 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 TLE8457CLEXUMA1 part is unused and in its original packaging.
Return procedure for TLE8457CLEXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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