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Infineon Technologies TLE8457DSJXUMA1
- Part No.:
- TLE8457DSJXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE8457DSJXUMA1.pdf
- Description:
- IC TRANSCEIVER 1/1 PGDSO8
- Quantity:
- Payment:
- Shipping:
Inventory:9,354
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Product details
Overview
TLE8457DSJXUMA1 from Infineon Technologies is a monolithic automotive-grade LIN transceiver with integrated 3.3 V low-dropout voltage regulator (70 mA output), compliant with ISO 17987-4 and SAE J2602, supporting up to 20 kBit/s data rate, ultra-low standby current (20 µA typical), and bus wake-up capability - used in battery-permanently-connected LIN slave modules such as rain sensors and window lifters.
For engineers reviewing the TLE8457DSJXUMA1 datasheet, TLE8457DSJXUMA1 pinout, TLE8457DSJXUMA1 application, or TLE8457DSJXUMA1 equivalent, key selection criteria include integrated LDO output voltage (3.3 V), sleep-mode current (≤16 µA), BUS short-to-VBAT/GND protection, VCC undervoltage reset (NRST), and PG-DSO-8 package compatibility for automotive PCB layouts.
Technical Context
The device integrates a LIN physical layer transceiver and a BiCMOS-based linear regulator on a single die, enabling direct microcontroller supply and bus communication without external regulators or level shifters. Its dual-mode control (EN/TxD) enables deterministic transitions between normal operation, standby, and sleep modes - with wake-up detection via RxD during standby.
Functional safety features include VCC undervoltage detection with active-low NRST reset, dominant time-out on TxD to prevent bus lock-up, overtemperature shutdown, and ±8 kV ESD robustness per IEC61000-4-2. The BUS pin supports integrated slave termination and handles short-to-battery/ground faults without latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Data Rate | Up to 20 kBit/s - meets full-speed LIN 2.2A/J2602 timing requirements for body electronics control. |
| VCC Output Voltage | 3.3 V ±2% - powers 3.3 V microcontrollers directly; stable with 1 µF ceramic output capacitor. |
| Regulator Current | 70 mA max - sufficient for MCU + peripheral ICs in satellite LIN nodes (e.g., wiper control modules). |
| Standby Current | 20 µA typical - enables always-on battery-supplied modules without excessive drain (e.g., ambient lighting). |
| Sleep Current | 16 µA max - ensures <1 µA/year battery loss in parked vehicle scenarios over 10-year lifetime. |
| ESD Robustness | ±8 kV HBM - exceeds automotive EMC requirements for in-vehicle LIN wiring harness exposure. |
| Operating Temp | −40 °C to +150 °C - qualified per AEC-Q100 Grade 0 for under-hood and door module environments. |
Pinout & Package
Supplied in PG-DSO-8 package (RoHS-compliant, lead-free, surface-mount), with exposed thermal pad not connected in this variant (PG-TSON-8 only includes PAD). Pin layout optimized for automotive PCB routing and automated optical inspection (AOI) compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VS | Battery supply input | Accepts 5.5–27 V DC; requires local decoupling capacitor; monitored for power-on reset and undervoltage. |
| 2 EN | Enable control input | Pull-down enabled; logic high selects normal mode; logic low enters standby/sleep depending on TxD state. |
| 3 GND | Power ground reference | Common return path for regulator, transceiver, and protection circuitry; must be low-impedance. |
| 4 BUS | LIN bus interface | Single-wire bidirectional I/O with integrated slave termination; handles short-to-VBAT/GND safely. |
| 5 RxD | Receive data output | Reflects LIN bus signal in normal mode; asserts low during bus wake-up event in standby mode. |
| 6 TxD | Transmit data input | Microcontroller-driven; internal pull-up to VCC; dominant time-out prevents bus lock during firmware hang. |
| 7 NRST | Reset output | Active-low open-drain output signaling VCC undervoltage; holds MCU in reset until VCC stabilizes. |
| 8 VCC | Regulated output | 3.3 V LDO output; supplies MCU core/peripherals; requires ≥1 µF ceramic capacitor at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 3.3 V LDO | Eliminates need for external regulator; reduces BOM count and board space in LIN satellite nodes. |
| Ultra-low standby current | 20 µA typical enables >10-year battery life in always-connected modules like sunroof controllers. |
| Bus wake-up detection | RxD pin signals wake event without mode transition - allows MCU to remain in stop mode until needed. |
| VCC undervoltage reset | NRST output ensures reliable MCU initialization during cold-cranking or brown-out conditions. |
| Short-circuit protected BUS pin | Withstands sustained short-to-VBAT or short-to-GND without damage or latch-up - critical for field reliability. |
Applications
| Window Lifter Control | Rain & Light Sensor |
|---|---|
|
Use Scenario: LIN-controlled motor actuation for power windows with anti-pinch detection. IC Role / Device Role / Timing Role: LIN transceiver interfaces MCU to vehicle body network; 3.3 V LDO powers MCU and Hall sensor interface. Use Value: Sleep current ≤16 µA prevents parasitic drain during vehicle off-state; BUS short protection avoids field failures from wiring chafing. |
Use Scenario: Integrated ambient light and rain detection module mounted behind rearview mirror. IC Role / Device Role / Timing Role: Provides LIN connectivity and regulated 3.3 V supply to optical sensor ASIC and MCU. Use Value: Standby current of 20 µA enables continuous sensing without compromising battery longevity; ±8 kV ESD protects against dashboard ESD events. |
| Sun Roof Control Module | Wiper Motor Interface |
|
Use Scenario: Motorized sun roof with position feedback and obstacle detection. IC Role / Device Role / Timing Role: LIN transceiver relays commands from body controller; LDO supplies MCU and position encoder. Use Value: Dominant time-out on TxD prevents bus lock during MCU reset; thermal shutdown protects against motor stall overheating. |
Use Scenario: Variable-speed windshield wiper system with rain-sensing input. IC Role / Device Role / Timing Role: LIN interface for speed/delay commands; 3.3 V supply powers wiper MCU and analog front-end. Use Value: NRST output synchronizes MCU reset with VCC stabilization during ignition cycles; AEC-Q100 qualification ensures reliability in engine bay proximity. |
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 |
|---|---|---|---|
| TLIN1029DR | 3.3 V LDO (100 mA), higher drive strength, no integrated BUS termination resistor. | Requires external 1 kΩ slave termination; better suited for high-noise under-hood locations. | Select when higher current headroom or enhanced EMC performance is required over cost-sensitive interior modules. |
| MC33664ELHR2 | 5 V LDO (60 mA), lower standby current (10 µA), no NRST output. | Lacks dedicated reset output; requires external supervisor or MCU internal BOR for VCC monitoring. | Prefer for 5 V systems where reset functionality is handled elsewhere and ultra-low quiescent current is critical. |
Compared with TLIN1029DR and MC33664ELHR2, TLE8457DSJXUMA1 uniquely combines 3.3 V regulation, integrated BUS termination, NRST reset, and AEC-Q100 Grade 0 qualification in PG-DSO-8 - making it optimal for cost-constrained, space-limited interior LIN nodes requiring full functional integration.
Availability
TLE8457DSJXUMA1 is available at Aetrix Electronics and suitable for window lifter control, rain/light sensor modules, sun roof control, and wiper motor interfaces requiring stable component supply across automotive production lifecycles.
Supply support for TLE8457DSJXUMA1 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 industrial control solutions, with global manufacturing and automotive qualification infrastructure.
TLE8457DSJXUMA1 belongs to Infineon's Automotive Transceivers product line, designed specifically for LIN-based body electronics subsystems requiring integrated power and communication in harsh automotive environments.
FAQ
What is the maximum allowable input voltage on the VS pin?
The VS pin supports 5.5 V to 27 V DC per absolute maximum ratings, with functional operation guaranteed from 6 V to 18 V. Operation above 18 V is permissible only for transient conditions defined by ISO 7637-2 Pulse 1 and Pulse 4a - sustained voltage beyond 27 V risks permanent damage.
Does TLE8457DSJXUMA1 support LIN 2.2A and LIN 2.2B protocols?
Yes - the transceiver fully complies with ISO 17987-4 (LIN 2.2A) and SAE J2602, supporting all mandatory electrical characteristics including bus slope, dominant/recessive timing, and wake-up pulse detection. LIN 2.2B compliance is achieved via identical physical layer behavior and timing margins.
Can the VCC output be used to power external components beyond the MCU?
Yes - the 3.3 V LDO delivers up to 70 mA total, sufficient for MCU, LIN-compatible sensors (e.g., Hall effect position sensors), and small analog front-ends. Total load must stay within 70 mA and maintain ≥1 µF ceramic capacitance at VCC to ensure stability under dynamic load steps.
Is the BUS pin internally terminated, and what is the resistance value?
Yes - the BUS pin includes an integrated 30 kΩ pull-up resistor to VCC and a 1 kΩ slave termination resistor to GND, meeting LIN specification requirements for passive slave nodes. No external termination resistors are required for standard LIN bus topologies.
TLE8457DSJXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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
- Supplier Device Package:
- PG-DSO-8
TLE8457DSJXUMA1 FAQ
1.How can I place an order for TLE8457DSJXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE8457DSJXUMA1 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 TLE8457DSJXUMA1 reliable?
The price and inventory of TLE8457DSJXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE8457DSJXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE8457DSJXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE8457DSJXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE8457DSJXUMA1?
TLE8457DSJXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE8457DSJXUMA1 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 TLE8457DSJXUMA1?
For technical support, including TLE8457DSJXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE8457DSJXUMA1 requirements.
6.How does Aetrix verify that TLE8457DSJXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE8457DSJXUMA1 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 TLE8457DSJXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE8457DSJXUMA1?
All TLE8457DSJXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE8457DSJXUMA1, 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 TLE8457DSJXUMA1 part is unused and in its original packaging.
Return procedure for TLE8457DSJXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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