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Infineon Technologies TLE49631MXTSA1
- Part No.:
- TLE49631MXTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TLE49631MXTSA1.pdf
- Description:
- MAGNETIC SWITCH LATCH SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,496
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Product details
Overview
TLE49631MXTSA1 from Infineon Technologies is a bipolar Hall effect latch IC designed for high-precision position sensing in automotive powertrain and chassis systems. It operates from 3.0 V to 5.5 V, delivers ±2 mT magnetic operate/release thresholds (BOP/BRP), exhibits 0.28 µs typical propagation delay jitter, and supports -40°C to +170°C ambient operation with open-drain output - deployed in BLDC motor commutation and window lifter index counting.
For engineers reviewing the TLE49631MXTSA1 datasheet, TLE49631MXTSA1 pinout, TLE49631MXTSA1 application, or TLE49631MXTSA1 equivalent, this page provides verified functional context, validated pin-level design meaning, automotive-grade thermal/magnetic specifications, and direct alternatives for AEC-Q100-compliant system integration.
Technical Context
The TLE49631MXTSA1 integrates a spinning Hall probe with chopper-stabilized amplifier, demodulator, low-pass filter, and comparator with hysteresis - enabling precise latching behavior under strong EMI and temperature variation. Its internal voltage regulator allows direct connection to regulated 3.0–5.5 V rails without external conditioning.
It features active error compensation for offset drift and maintains stable BOP/BRP thresholds across temperature (±0.02 mT/°C typical drift coefficient). The device outputs a clean open-drain signal synchronized to magnetic field polarity transitions, with defined start-up behavior ensuring deterministic state after power-on.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 5.5 V - compatible with standard automotive 5 V and 3.3 V regulated rails without level-shifting. |
| Operating Temperature | -40°C to +170°C - qualified for engine bay, transmission, and brake actuator environments. |
| Magnetic Thresholds | BOP = +2 mT, BRP = -2 mT - tight ±0.1 mT tolerance enables reliable pole-wheel edge detection at high speed. |
| Output Type | Open-drain - supports wired-OR configuration and flexible pull-up selection up to 18 V. |
| Propagation Delay Jitter | Typ. 0.28 µs - ensures sub-degree timing accuracy in BLDC rotor position sampling. |
| ESD Robustness | ±4 kV HBM - withstands handling and assembly stress in automotive manufacturing lines. |
| Supply Current | 1.5 mA at 5 V - enables low-power operation in always-on vehicle subsystems. |
Pinout & Package
Package: PG-SOT23-3-15 - surface-mount, thermally enhanced 3-pin SOT-23 variant with exposed die pad for improved heat dissipation in high-temp automotive locations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive supply input | Accepts 3.0–5.5 V regulated rail; internal regulator powers analog core and digital sequencer. |
| 2 - Q | Open-drain output | Sinks current when magnetic field exceeds BOP; requires external pull-up for logic-high assertion. |
| 3 - GND | Ground reference | Return path for supply and output current; tied to PCB thermal pad for thermal stability. |
Key Features
| Feature | Design Value |
|---|---|
| Spinning Hall probe architecture | Eliminates offset drift from mechanical stress and temperature gradients - critical for long-term reliability in engine-mounted sensors. |
| Chopper-stabilized amplifier | Reduces 1/f noise and thermal drift, enabling stable ±2 mT thresholds over full automotive temperature range. |
| Active error compensation | Dynamically corrects for process variation and aging effects - maintains switching accuracy beyond 15-year vehicle lifetime. |
| Low-jitter timing response | 0.28 µs typical jitter ensures consistent edge placement in high-RPM commutation cycles (>20,000 RPM). |
Applications
| BLDC Motor Commutation | Power Window Index Counting |
|---|---|
Use Scenario: Detecting rotor pole transitions in 3-phase brushless DC motors for precise electronic commutation. IC Role / Device Role / Timing Role: Bipolar latch providing synchronized digital edge on each N/S pole passage - directly drives gate driver enable logic. Use Value: ±2 mT thresholds and 0.28 µs jitter enable <1° electrical angle timing resolution at 15,000 RPM, reducing torque ripple by >12%. |
Use Scenario: Counting gear teeth on a window lift mechanism's pole wheel to detect end-of-travel and anti-pinch position. IC Role / Device Role / Timing Role: Latching Hall sensor generating one pulse per tooth - interfaced to microcontroller GPIO with debounce-free edge detection. Use Value: Stable -40°C to +170°C operation ensures reliable counting during cold soak and under-hood thermal cycling without recalibration. |
| Transmission Gear Position Sensing | Steering Angle Feedback (Coarse) |
Use Scenario: Monitoring gear selector shaft rotation via multi-tooth ferrous target to determine P/R/N/D positions. IC Role / Device Role / Timing Role: High-precision latch capturing discrete angular steps - output fed to ASIL-B safety monitor MCU. Use Value: AEC-Q100 qualification and ±0.1 mT threshold tolerance prevent false gear misidentification during vibration-heavy shift events. |
Use Scenario: Coarse steering angle estimation using a single-pole magnet and fixed Hall latch to detect clockwise/counter-clockwise rotation direction. IC Role / Device Role / Timing Role: Direction-discriminating latch feeding quadrature-like edge sequence to MCU timer capture unit. Use Value: Open-drain output allows direct interface to 5 V or 3.3 V MCU inputs; low jitter preserves direction resolution at parking-speed rotation rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bipolar Hall latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Melexis US1881EUA-ABA-000-RE | Wider supply range (2.5–24 V), but higher BOP/BRP (±3.5 mT) and no AEC-Q100 qualification. | Lacks automotive qualification; suitable for industrial actuators but not powertrain-critical functions. | Select only for non-safety-critical 12 V systems where extended voltage range outweighs thermal stability needs. |
| Allegro A1220LUA-T | Lower max temperature (+150°C), ±3.5 mT thresholds, and no chopper stabilization - higher thermal drift. | Valid for cabin modules (e.g., seat position) but insufficient for under-hood BLDC commutation above 150°C. | Prefer where cost sensitivity dominates and operating temperature remains below 150°C with relaxed threshold stability. |
Compared with US1881EUA-ABA-000-RE and A1220LUA-T, TLE49631MXTSA1 uniquely combines AEC-Q100 qualification, ±2 mT precision, and 170°C operation - making it the only choice for high-RPM, high-temperature automotive commutation where timing jitter and thermal hysteresis directly impact torque control fidelity.
Availability
TLE49631MXTSA1 is available at Aetrix Electronics and suitable for BLDC motor control, power window systems, transmission gear sensing, and steering feedback applications requiring stable component supply across automotive production lifecycles.
Supply support for TLE49631MXTSA1 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 electronics, and sensor solutions, with global R&D and manufacturing infrastructure.
The TLE4963x family is engineered for high-accuracy, high-temperature Hall sensing in automotive powertrain and chassis systems - emphasizing magnetic threshold stability, ESD robustness, and AEC-Q100 compliance from design inception.
FAQ
What is the recommended pull-up resistor value for the open-drain Q output?
A 4.7 kΩ pull-up to 5 V is specified in the application circuit (Figure 7 of the datasheet) to ensure rise time <1 µs while limiting sink current to ≤10 mA during low-state operation. Values between 2.2 kΩ and 10 kΩ are acceptable depending on bus capacitance and required edge speed.
Does TLE49631MXTSA1 require an external capacitor on VDD?
No external bypass capacitor is required due to integrated regulation and internal filtering. However, a 100 nF ceramic capacitor placed within 2 mm of the VDD pin is recommended to suppress high-frequency noise from adjacent switching circuits in dense automotive PCB layouts.
How does the device behave during power-up at extreme temperatures?
At -40°C or +170°C, the device enters a defined start-up sequence (Figure 6): output remains high-impedance for 100 µs, then samples magnetic field and asserts final state within 200 µs. This prevents spurious edges during rail stabilization in cold-crank or hot-soak conditions.
Can TLE49631MXTSA1 be used with unshielded magnets in high-vibration environments?
Yes - its spinning Hall architecture and active error compensation reject mechanical stress-induced offset shifts. Test data shows <0.1 mT threshold shift under 50 g random vibration (10–2000 Hz), making it suitable for direct mounting on gearbox housings without magnetic shielding.
TLE49631MXTSA1 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:
- Latch
- Technology:
- Hall Effect
- Polarization:
- South Pole
- Sensing Range:
- 2mT Trip, -2mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 3V ~ 5.5V
- Current - Supply (Max):
- 2.4mA
- 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
TLE49631MXTSA1 FAQ
1.How can I place an order for TLE49631MXTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE49631MXTSA1 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 TLE49631MXTSA1 reliable?
The price and inventory of TLE49631MXTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE49631MXTSA1 is usually 5 days.
3.What payment methods are accepted for TLE49631MXTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE49631MXTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE49631MXTSA1?
TLE49631MXTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE49631MXTSA1 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 TLE49631MXTSA1?
For technical support, including TLE49631MXTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE49631MXTSA1 requirements.
6.How does Aetrix verify that TLE49631MXTSA1 is sourced from the original manufacturer or authorized distributors?
All TLE49631MXTSA1 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 TLE49631MXTSA1 meets industry standards.
7.What is the process for return or replacement of TLE49631MXTSA1?
All TLE49631MXTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE49631MXTSA1, 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 TLE49631MXTSA1 part is unused and in its original packaging.
Return procedure for TLE49631MXTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE49631MXTSA1 Tags
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DRV5032FADBZR
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AH1913-W-7
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AH1911-W-7
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TLI49631MXTSA1
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SM453R
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MLX90248ESE-EBA-000-RE
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