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Infineon Technologies TLE49655MXTMA1
- Part No.:
- TLE49655MXTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TLE49655MXTMA1.pdf
- Description:
- MAG SWITCH UNIPOLAR SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,183
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Product details
Overview
TLE49655MXTMA1 from Infineon Technologies is a high-precision unipolar Hall effect switch optimized for automotive position sensing, featuring BOP = 7.5 mT, BRP = 5.0 mT, ±0.5 mT magnetic threshold accuracy over −40°C to +170°C, open-drain output, and AEC-Q100 qualification. It operates from 3.0 V to 5.5 V supply with 1.5 mA typical current consumption and 0.28 µs typical propagation delay jitter.
For engineers reviewing the TLE49655MXTMA1 datasheet, TLE49655MXTMA1 pinout, TLE49655MXTMA1 application, or TLE49655MXTMA1 equivalent, key selection criteria include magnetic threshold stability at high temperature, ESD robustness (4 kV HBM), SOT23-3 package compatibility, and unipolar switching behavior in safety-critical mechanical position detection.
Technical Context
The TLE49655MXTMA1 integrates a spinning Hall probe with chopper-stabilized amplifier, low-pass filtering, and comparator with 2.5 mT hysteresis to suppress false triggering from mechanical vibration or field noise. Its internal voltage regulator enables stable operation across wide supply variation without external LDO.
Designed for direct connection to regulated automotive power rails, it uses active error compensation to maintain magnetic threshold accuracy over full temperature range. The device outputs a clean open-drain signal compatible with 3.3 V or 5 V logic interfaces, with propagation delay tightly controlled at 2.5 µs (max) at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 5.5 V - supports direct interface with standard automotive regulated rails without level-shifting. |
| Operating Temperature | −40°C to +170°C - qualified for under-hood and transmission-mounted applications per AEC-Q100 Grade 0. |
| Magnetic BOP / BRP | 7.5 mT / 5.0 mT - precise unipolar switching thresholds enable accurate gear position or brake pedal state detection. |
| Hysteresis | 2.5 mT - prevents chatter during slow or oscillating magnetic field transitions near threshold. |
| Output Type | Open-drain - allows wired-OR configuration and flexible pull-up voltage selection (e.g., 3.3 V or 5 V). |
| Jitter | 0.28 µs (typ.) - ensures deterministic timing for real-time control loops in safety-critical systems. |
| ESD Robustness | 4 kV HBM - meets automotive system-level ESD immunity requirements without additional protection circuitry. |
Pinout & Package
Package: PG-SOT23-3-15 - surface-mount, thermally enhanced plastic package with exposed die pad (not electrically connected), footprint-compatible with industry-standard SOT-23-3 layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Supply input | Accepts 3.0–5.5 V regulated rail; internal regulator powers all analog blocks and digital sequencer. |
| 2 (Q) | Open-drain output | Sinks current when magnetic field exceeds BOP; requires external pull-up for logic-high state. |
| 3 (GND) | Ground reference | Common return path for supply and output; tied to package thermal pad for improved thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Spinning Hall sensor | Eliminates offset drift and 1/f noise, enabling stable magnetic threshold performance over lifetime and temperature. |
| Chopper-stabilized amplifier | Reduces input offset voltage to <10 µV, critical for maintaining tight BOP/BRP tolerance across −40°C to +170°C. |
| Active error compensation | Corrects for process variation and temperature-induced gain/offset shifts in real time using on-chip calibration. |
| Low-jitter propagation delay | 2.5 µs max delay with 0.28 µs jitter ensures timing predictability in fast-response position feedback loops. |
| Thermally robust package | PG-SOT23-3-15 delivers 120°C/W junction-to-ambient thermal resistance, supporting continuous operation at 170°C ambient. |
Applications
| Transmission Gear Position Sensing | Steering Column Lock Detection |
|---|---|
|
Use Scenario: Detect discrete gear positions (P/R/N/D) in automatic transmissions via magnet movement relative to fixed sensor location. IC Role / Device Role / Timing Role: Unipolar Hall switch providing clean, jitter-free digital position status to transmission control unit (TCU) with <2.5 µs response latency. Use Value: Enables fail-safe neutral safety interlock and gear shift validation without mechanical switches or optical encoders. |
Use Scenario: Confirm mechanical engagement of steering lock actuator during vehicle power-up and ignition sequence. IC Role / Device Role / Timing Role: High-temperature Hall switch delivering verified lock/unlock state to body control module (BCM) within 5 ms of power-on. Use Value: Meets ISO 26262 ASIL-B functional safety requirements for steering immobilization with AEC-Q100 Grade 0 qualification. |
| Brake Pedal Position Monitoring | Engine Crankshaft Timing Reference |
|
Use Scenario: Monitor brake pedal travel to activate stop lamps and support brake-by-wire redundancy checks. IC Role / Device Role / Timing Role: Unipolar switch detecting pedal actuation onset with 7.5 mT BOP threshold aligned to mechanical stroke end-point. Use Value: Provides deterministic, ESD-hardened signal for Class C lighting compliance and brake assist system coordination. |
Use Scenario: Sense crankshaft rotation for engine speed and position feedback in distributorless ignition systems. IC Role / Device Role / Timing Role: High-precision Hall switch generating synchronized pulse train with <0.28 µs jitter for ECU timing resolution. Use Value: Supports misfire detection and variable valve timing synchronization at up to 8,000 RPM with minimal phase error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unipolar Hall switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV4965-5M | Same pinout and magnetic thresholds, but rated only to +150°C (AEC-Q100 Grade 1); lower ESD rating (2 kV HBM). | Not suitable for under-hood locations exceeding 150°C ambient, e.g., near turbochargers or exhaust manifolds. | Select when cost sensitivity outweighs extended temperature requirement and system-level ESD protection is added externally. |
| US1881EUA-AMI | Unipolar switch with BOP = 8.5 mT, BRP = 5.5 mT; wider supply range (2.5–24 V); no AEC-Q100 qualification. | Lacks automotive qualification and thermal stability-requires revalidation for safety-critical use cases. | Consider only for non-safety industrial applications where extended voltage range compensates for reduced precision and qualification gap. |
Compared with TLV4965-5M and US1881EUA-AMI, TLE49655MXTMA1 uniquely delivers AEC-Q100 Grade 0 qualification, 170°C operation, and sub-millitesla magnetic accuracy-making it the only choice for validated, high-reliability automotive position sensing where thermal margin and functional safety are non-negotiable.
Availability
TLE49655MXTMA1 is available at Aetrix Electronics and suitable for transmission gear position sensing, steering column lock detection, and brake pedal monitoring requiring stable component supply in automotive production programs.
Supply support for TLE49655MXTMA1 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.
The TLE4965x family is engineered specifically for high-accuracy, high-temperature position sensing in automotive powertrain and chassis systems-emphasizing magnetic stability, functional safety readiness, and long-term reliability under harsh conditions.
FAQ
What is the maximum allowable supply voltage for TLE49655MXTMA1?
The absolute maximum supply voltage is 6.0 V, but continuous operation must remain within 3.0 V to 5.5 V per datasheet specifications. Exceeding 5.5 V risks permanent damage to the internal voltage regulator and Hall sensor circuitry, even for brief transients-designers must implement clamping or overvoltage protection if battery feed is used directly.
Does TLE49655MXTMA1 require an external pull-up resistor on the Q pin?
Yes-an external pull-up resistor is mandatory because the output is open-drain. Typical values range from 2.2 kΩ to 10 kΩ, selected based on rise time requirements and bus loading. No internal pull-up exists; omission results in undefined logic-high state and potential system communication failure.
Can TLE49655MXTMA1 operate reliably at 170°C junction temperature?
Yes-the device is fully characterized and qualified for continuous operation at 170°C junction temperature, supported by AEC-Q100 Grade 0 testing. Thermal design must ensure actual junction temperature stays ≤170°C using PCB copper area, thermal vias, and ambient derating per the package's 120°C/W θJA.
How does the spinning Hall technology improve performance over conventional Hall sensors?
Spinning Hall eliminates static offset voltage and low-frequency noise by rotating the Hall plate's measurement axes, enabling real-time cancellation of process-induced mismatches. This yields <±0.5 mT magnetic threshold variation over temperature-critical for repeatable gear or brake position detection without recalibration.
TLE49655MXTMA1 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:
- 10.4mT Trip, 2.8mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 3V ~ 5.5V
- Current - Supply (Max):
- 2.5mA
- Current - Output (Max):
- 5mA
- 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
TLE49655MXTMA1 FAQ
1.How can I place an order for TLE49655MXTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE49655MXTMA1 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 TLE49655MXTMA1 reliable?
The price and inventory of TLE49655MXTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE49655MXTMA1 is usually 5 days.
3.What payment methods are accepted for TLE49655MXTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE49655MXTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE49655MXTMA1?
TLE49655MXTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE49655MXTMA1 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 TLE49655MXTMA1?
For technical support, including TLE49655MXTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE49655MXTMA1 requirements.
6.How does Aetrix verify that TLE49655MXTMA1 is sourced from the original manufacturer or authorized distributors?
All TLE49655MXTMA1 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 TLE49655MXTMA1 meets industry standards.
7.What is the process for return or replacement of TLE49655MXTMA1?
All TLE49655MXTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE49655MXTMA1, 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 TLE49655MXTMA1 part is unused and in its original packaging.
Return procedure for TLE49655MXTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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