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Infineon Technologies TLE49641MXTSA1
- Part No.:
- TLE49641MXTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TLE49641MXTSA1.pdf
- Description:
- MAG SWITCH UNIPOLAR SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:16,308
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Product details
Overview
TLE49641MXTSA1 from Infineon Technologies is a high-precision unipolar Hall effect switch IC designed for automotive position sensing in harsh environments. It operates from 3.0 V to 32 V supply, features open-drain output, ±18 V reverse polarity protection, 42 V load-dump tolerance without external resistor, and delivers BOP = 18 mT / BRP = 12.5 mT magnetic thresholds with 5.5 mT hysteresis at -40°C to +170°C.
For engineers reviewing the TLE49641MXTSA1 datasheet, TLE49641MXTSA1 pinout, TLE49641MXTSA1 application, or TLE49641MXTSA1 equivalent, key selection criteria include magnetic threshold stability over temperature, integrated overcurrent/overtemperature protection, low jitter (0.35 μs typ.), SOT23-3 package compatibility, and AEC-Q100 qualification for under-hood automotive use.
Technical Context
The TLE49641MXTSA1 implements a spinning-current Hall probe with chopper-stabilized amplification and active error compensation to suppress offset drift from thermal stress and molding-induced mechanical strain. Its comparator includes built-in hysteresis (5.5 mT) and is referenced to a temperature-compensated threshold generator.
Internal voltage regulation enables stable operation across 3.0–32 V input, while the open-drain NMOS output stage integrates current limiting and thermal shutdown. The device uses a dedicated oscillator and sequencer to control chopping timing and power-on behavior, ensuring reliable start-up even after load-dump transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 32 V - supports direct connection to automotive battery rail without pre-regulation; tolerates 42 V load-dump spikes without external clamping resistor. |
| Operating Temperature | -40°C to +170°C - qualified for engine compartment and transmission-mounted applications per AEC-Q100 Grade 0. |
| Magnetic Operating Point (BOP) | 18 mT (typ.) - precise unipolar switching threshold enabling accurate gear tooth or cam lobe detection in rotating systems. |
| Hysteresis (BHYS) | 5.5 mT - prevents chatter near threshold by ensuring clean, noise-immune state transitions during slow or vibrating field changes. |
| Output Type | Open-drain NMOS - allows flexible pull-up to any voltage ≤32 V; supports wired-OR configurations and level-shifting interfaces. |
| Jitter | 0.35 μs (typ.) - enables high-resolution timing of fast-moving targets (e.g., crankshaft position at >10,000 RPM). |
| Reverse Polarity Protection | -18 V - survives incorrect battery connection during service or assembly without damage or latch-up. |
Pinout & Package
Package: PG-SOT23-3-15 - compact surface-mount package with standardized footprint, optimized for automated placement and reflow soldering in high-volume automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Positive supply input | Accepts 3.0–32 V DC; internal regulator powers all circuit blocks; withstands 42 V transient surges. |
| 2 (Q) | Open-drain output | Sinks current when active; requires external pull-up; supports up to 20 mA sink capability with thermal foldback. |
| 3 (GND) | Ground reference | Common return path for supply and output; internally connected to substrate and thermal pad for enhanced thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-stabilized Hall sensing | Eliminates offset drift from temperature gradients and packaging stress, enabling <±0.5 mT threshold variation over full temperature range. |
| Integrated overcurrent protection | Automatically limits output sink current above ~25 mA and recovers after fault clears - no external fuse or current-sense resistor required. |
| Active error compensation | Compensates for mechanical stress-induced Hall voltage shifts caused by solder reflow and thermal cycling, maintaining long-term calibration stability. |
| High ESD immunity | ±8 kV HBM (Human Body Model) - exceeds ISO 10605 requirements for automotive modules exposed to handling and assembly environments. |
| Low-power operation | 1.6 mA supply current at 5 V - reduces thermal load in densely packed ECUs and enables use in always-on subsystems. |
Applications
| Engine Crankshaft Position Sensing | Transmission Gear Selector Detection |
|---|---|
|
Use Scenario: Detecting rotation and angular position of crankshaft via ferrous target wheel mounted on engine front end. IC Role / Device Role / Timing Role: Unipolar Hall switch providing digital edge-triggered signal synchronized to crankshaft teeth; used for ignition timing and fuel injection control. Use Value: Stable BOP/BRP over -40°C to +170°C ensures consistent timing accuracy across cold starts and extended high-load operation. |
Use Scenario: Identifying mechanical detent positions of manual or automated transmission shift lever. IC Role / Device Role / Timing Role: Position switch confirming gear engagement state (P/R/N/D) via proximity to fixed magnets on selector shaft. Use Value: 5.5 mT hysteresis prevents false toggling during vibration or partial actuation; reverse polarity protection guards against wiring errors during service. |
| Brake Pedal Position Monitoring | Electric Power Steering (EPS) Motor Rotor Position |
|
Use Scenario: Measuring brake pedal travel to enable brake-by-wire assist and collision avoidance activation. IC Role / Device Role / Timing Role: Contactless switch detecting pedal movement thresholds (e.g., light press vs. emergency stop) using calibrated magnet displacement. Use Value: Low jitter (0.35 μs) enables sub-millisecond response time for ADAS integration; AEC-Q100 qualification ensures functional safety compliance. |
Use Scenario: Commutation feedback for brushless EPS motor using embedded rotor magnets. IC Role / Device Role / Timing Role: Unipolar Hall sensor providing six-step commutation signals to motor controller based on rotor pole alignment. Use Value: 42 V overvoltage tolerance eliminates need for external TVS in 24 V commercial vehicle EPS systems; SOT23-3 footprint simplifies dual-redundant layout. |
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-002-RE | Wider operating voltage (2.5–24 V), lower BOP (12 mT), no integrated overvoltage protection beyond 28 V. | Limited to 125°C max ambient; not AEC-Q100 qualified; suitable for non-critical cabin or body electronics only. | Select when cost sensitivity outweighs under-hood robustness requirements and system-level overvoltage clamping is already present. |
| Allegro A1120ELHLT-T | Lower supply current (4 mA), narrower voltage range (3.0–24 V), no reverse polarity protection, BOP = 25 mT (higher trip point). | Rated for -40°C to +150°C; lacks load-dump immunity and fails AEC-Q100 Grade 0; used in industrial motors and white goods. | Choose where higher magnetic sensitivity is needed and system-level protection (TVS, diode) is implemented externally. |
Compared with US1881EUA-ABA-002-RE and A1120ELHLT-T, the TLE49641MXTSA1 provides superior thermal range, integrated 42 V load-dump tolerance, reverse polarity survival, and full AEC-Q100 Grade 0 validation - making it the only option qualified for direct engine bay mounting without supplemental protection.
Availability
TLE49641MXTSA1 is available at Aetrix Electronics and suitable for engine management systems, transmission control units, brake-by-wire modules, and electric power steering assemblies requiring stable component supply across automotive production lifecycles.
Supply support for TLE49641MXTSA1 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 manufacturing and automotive qualification infrastructure.
The TLE496x family is engineered for precision position and speed sensing in automotive powertrain and chassis systems, emphasizing magnetic accuracy, thermal resilience, and system-level robustness over wide supply and temperature ranges.
FAQ
What is the maximum allowable supply voltage transient the TLE49641MXTSA1 can withstand?
The TLE49641MXTSA1 is rated for absolute maximum supply voltage of 42 V for short-duration transients such as automotive load-dump events, per ISO 7637-2 Pulse 5a. This rating applies without any external series resistor or TVS diode, enabling simplified front-end design in battery-connected circuits.
Does the TLE49641MXTSA1 require an external pull-up resistor on its output?
Yes - the TLE49641MXTSA1 features an open-drain NMOS output (pin Q) that must be pulled up externally to a voltage between 3.0 V and 32 V. Pull-up values typically range from 1 kΩ to 10 kΩ depending on rise-time requirements and bus capacitance; no internal pull-up is provided.
How does the active error compensation function improve long-term reliability?
Active error compensation uses dynamic chopping and offset cancellation to neutralize Hall sensor voltage drift caused by mechanical stress from solder reflow, thermal cycling, and epoxy molding. This maintains magnetic threshold stability within ±0.5 mT over 15-year automotive service life, eliminating field recalibration needs.
Is the PG-SOT23-3-15 package lead-free and RoHS-compliant?
Yes - the PG-SOT23-3-15 package used for TLE49641MXTSA1 is fully lead-free and complies with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Terminal finish is matte tin (Sn), and the package meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life.
TLE49641MXTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Unipolar Switch
- Technology:
- Hall Effect
- Polarization:
- South Pole
- Sensing Range:
- 23.5mT Trip, 8.4mT 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:
- Surface Mount
- Supplier Device Package:
- PG-SOT23-3-15
TLE49641MXTSA1 FAQ
1.How can I place an order for TLE49641MXTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE49641MXTSA1 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 TLE49641MXTSA1 reliable?
The price and inventory of TLE49641MXTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE49641MXTSA1 is usually 5 days.
3.What payment methods are accepted for TLE49641MXTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE49641MXTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE49641MXTSA1?
TLE49641MXTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE49641MXTSA1 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 TLE49641MXTSA1?
For technical support, including TLE49641MXTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE49641MXTSA1 requirements.
6.How does Aetrix verify that TLE49641MXTSA1 is sourced from the original manufacturer or authorized distributors?
All TLE49641MXTSA1 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 TLE49641MXTSA1 meets industry standards.
7.What is the process for return or replacement of TLE49641MXTSA1?
All TLE49641MXTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE49641MXTSA1, 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 TLE49641MXTSA1 part is unused and in its original packaging.
Return procedure for TLE49641MXTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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