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Infineon Technologies TLE49642KXTSA1
- Part No.:
- TLE49642KXTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- -
- Datasheet:
-
TLE49642KXTSA1.pdf
- Description:
- MAGNETIC SWITCH UNIPOLAR SC59
- Quantity:
- Payment:
- Shipping:
Inventory:2,798
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Product details
Overview
TLE49642KXTSA1 from Infineon Technologies is a high-precision unipolar Hall effect switch optimized for automotive position sensing, featuring 3.0 V to 32 V supply operation, ±18 V reverse polarity protection, 42 V load-dump tolerance without external resistor, BOP = 28 mT (typ.), BRP = 22.5 mT (typ.), and open-drain output with overcurrent/overtemperature protection.
For engineers reviewing the TLE49642KXTSA1 datasheet, TLE49642KXTSA1 pinout, TLE49642KXTSA1 application, or TLE49642KXTSA1 equivalent, this device delivers stable magnetic switching in harsh environments-especially where wide supply range, AEC-Q100 qualification, and low jitter (0.35 µs typ.) are critical for crankshaft, camshaft, or gear tooth detection.
Technical Context
The TLE49642KXTSA1 integrates a spinning Hall probe with chopper-stabilized amplifier, demodulator, low-pass filter, and comparator with 5.5 mT hysteresis to suppress noise-induced false triggering. Its internal voltage regulator enables direct connection to unregulated automotive battery rails.
It features active error compensation for thermal drift mitigation and sequenced startup behavior ensuring reliable power-on initialization across -40°C to +170°C ambient. The open-drain output supports flexible pull-up configurations up to 42 V, eliminating need for external clamping in load-dump scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 32 V - operates directly from automotive battery without pre-regulation |
| Operating Point (BOP) | 28 mT (typ.) - precise magnetic field threshold for reliable unipolar activation |
| Release Point (BRP) | 22.5 mT (typ.) - ensures clean signal release with 5.5 mT hysteresis against noise |
| Output Type | Open-drain N-channel - allows external pull-up to voltages up to 42 V for load-dump resilience |
| Jitter (typ.) | 0.35 µs - enables accurate timing-critical position detection in fast-rotating systems |
| Temperature Range | -40°C to +170°C - qualified for under-hood engine compartment deployment |
| ESD Protection | ±4 kV HBM - robust handling during PCB assembly and system integration |
Pinout & Package
Delivered in PG-SC59-3-5 package - a SOT23-compatible surface-mount outline with 1.5 mm × 1.5 mm footprint, 0.95 mm height, and lead pitch of 0.95 mm, optimized for automated placement and thermal performance in high-density automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive supply input | Accepts 3.0–32 V DC; internally regulated to power analog/digital blocks; tolerates 42 V transient |
| 2 - Q | Open-drain output | Sinks current when activated; requires external pull-up; supports up to 42 V pull-up voltage |
| 3 - GND | Ground reference | Common return path for supply and output; connects to PCB ground plane for EMI suppression |
Key Features
| Feature | Design Value |
|---|---|
| Reverse polarity protection | Withstands -18 V supply reversal without damage - eliminates need for external diode in battery-reversal-prone systems |
| Overvoltage capability | 42 V transient tolerance without external resistor - simplifies design for ISO 7637-2 load-dump compliance |
| Active error compensation | Real-time correction of thermal drift in magnetic thresholds - maintains BOP/BRP stability across full temperature range |
| Low-jitter switching | 0.35 µs typical jitter - enables sub-degree angular resolution in rotational position sensing |
| AEC-Q100 qualification | Grade 0 (-40°C to +175°C junction) - certified for safety-critical automotive applications including powertrain and chassis |
Applications
| Engine Crankshaft Position Sensing | Transmission Gear Tooth Detection |
|---|---|
|
Use Scenario: Detecting passing gear teeth on rotating crankshaft near engine block. IC Role / Device Role / Timing Role: Unipolar magnetic switch providing edge-triggered digital pulses synchronized to crankshaft rotation. Use Value: Stable 28 mT BOP and 5.5 mT hysteresis ensure consistent pulse generation despite vibration, oil contamination, and temperature swings up to 170°C. |
Use Scenario: Monitoring gear engagement status and rotational speed inside automatic transmission housing. IC Role / Device Role / Timing Role: Magnetic proximity detector converting ferrous gear motion into clean TTL-compatible output signals. Use Value: 3.0–32 V supply range and reverse polarity protection allow direct connection to transmission control module's unregulated 12 V rail. |
| Brake Caliper Position Feedback | Electric Power Steering Motor Commutation |
|
Use Scenario: Verifying mechanical actuation of brake caliper pistons in electro-mechanical brake systems. IC Role / Device Role / Timing Role: Contactless position switch confirming piston extension/retraction via magnetic target movement. Use Value: Low 0.35 µs jitter and AEC-Q100 Grade 0 rating support functional safety requirements (ASIL-B capable architecture). |
Use Scenario: Providing rotor position feedback for BLDC motor commutation in EPS control units. IC Role / Device Role / Timing Role: High-accuracy unipolar Hall sensor delivering synchronized timing edges to motor gate driver logic. Use Value: Open-drain output with 42 V tolerance interfaces directly with 12 V or 24 V motor drive supply rails without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unipolar Hall switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis US1881EUA-ABA-000-RE | BOP = 30 mT, BRP = 24 mT; 2.5–24 V supply; no load-dump tolerance beyond 28 V | Lacks 42 V overvoltage capability and AEC-Q100 Grade 0 qualification | Preferred for cost-sensitive non-safety-critical industrial encoders where supply is regulated |
| Allegro A1120ELHLT-T | BOP = 25 mT, BRP = 19 mT; 3.8–24 V supply; ±2 kV ESD; no reverse polarity protection | Not rated for >150°C ambient; requires external reverse-battery diode | Suitable for lower-temperature consumer or HVAC blower motor feedback where space constraints favor SOT-23 |
Compared with US1881EUA-ABA-000-RE and A1120ELHLT-T, the TLE49642KXTSA1 provides superior thermal robustness, integrated reverse-polarity protection, and load-dump resilience-making it the only choice for under-hood powertrain position sensing requiring ASIL-compliant reliability.
Availability
TLE49642KXTSA1 is available at Aetrix Electronics and suitable for engine management systems, transmission control units, electric power steering modules, and brake-by-wire actuators requiring stable component supply across extended automotive lifecycles.
Supply support for TLE49642KXTSA1 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 sensor solutions, with global R&D and manufacturing infrastructure supporting automotive-grade reliability.
The TLE49642KXTSA1 belongs to Infineon's TLE496x high-precision Hall switch family, engineered specifically for demanding automotive position sensing applications requiring wide supply range, extreme temperature operation, and AEC-Q100 qualification.
FAQ
What is the maximum allowable supply voltage transient for TLE49642KXTSA1?
The device withstands 42 V transients per ISO 7637-2 Pulse 5a (load dump) without external components. This rating applies to single-event transients ≤400 ms duration with energy limited by internal protection circuitry. Continuous operation above 32 V is not permitted.
Does TLE49642KXTSA1 require an external pull-up resistor?
Yes - its open-drain output requires an external pull-up resistor to define logic-high voltage level. Pull-up can be connected to any voltage up to 42 V, enabling compatibility with 5 V, 12 V, or 24 V system rails without level shifters or clamping diodes.
How does the spinning Hall probe improve performance over conventional Hall elements?
The spinning Hall probe continuously rotates the current path in the Hall plate to cancel offset voltage and 1/f noise. Combined with chopper stabilization, this reduces effective threshold drift to <0.1 mT/°C and enables 0.35 µs jitter - critical for high-RPM position accuracy.
Is TLE49642KXTSA1 compatible with standard SOT-23 pick-and-place equipment?
Yes - the PG-SC59-3-5 package has identical footprint and lead pitch (0.95 mm) to JEDEC MS-012 (SOT-23), allowing use of existing SMT assembly lines without retooling. Thermal pad absence and standardized land pattern ensure reliable reflow soldering per IPC-7351B.
TLE49642KXTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Unipolar Switch
- Technology:
- Hall Effect
- Polarization:
- South Pole
- Sensing Range:
- 28mT Trip, 22.5mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 3V ~ 32V
- Current - Supply (Max):
- 2.5mA
- Current - Output (Max):
- 25mA
- Output Type:
- Open Drain
- Features:
- Temperature Compensated
- Operating Temperature:
- -40°C ~ 170°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- -
- Supplier Device Package:
- -
TLE49642KXTSA1 FAQ
1.How can I place an order for TLE49642KXTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE49642KXTSA1 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 TLE49642KXTSA1 reliable?
The price and inventory of TLE49642KXTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE49642KXTSA1 is usually 5 days.
3.What payment methods are accepted for TLE49642KXTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE49642KXTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE49642KXTSA1?
TLE49642KXTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE49642KXTSA1 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 TLE49642KXTSA1?
For technical support, including TLE49642KXTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE49642KXTSA1 requirements.
6.How does Aetrix verify that TLE49642KXTSA1 is sourced from the original manufacturer or authorized distributors?
All TLE49642KXTSA1 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 TLE49642KXTSA1 meets industry standards.
7.What is the process for return or replacement of TLE49642KXTSA1?
All TLE49642KXTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE49642KXTSA1, 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 TLE49642KXTSA1 part is unused and in its original packaging.
Return procedure for TLE49642KXTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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