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Infineon Technologies TLI49631MXTSA1
- Part No.:
- TLI49631MXTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TLI49631MXTSA1.pdf
- Description:
- MAGNETIC SWITCH LATCH SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
TLI49631MXTSA1 from Infineon Technologies is a bipolar Hall effect latch IC optimized for 5 V regulated supply systems, delivering ±2 mT magnetic operate/release thresholds with 0.28 µs typical jitter and operation from –40°C to +125°C. It functions as a digital position/speed sensing element in brushless DC motor commutation and index counting via pole wheel detection.
For engineers reviewing the TLI49631MXTSA1 datasheet, TLI49631MXTSA1 pinout, TLI49631MXTSA1 application, or TLI49631MXTSA1 equivalent, key selection criteria include magnetic threshold stability over temperature, open-drain output compatibility with 3.3–5.5 V logic domains, ESD robustness (4 kV HBM), and SOT23-3 footprint constraints in space-constrained motion control PCBs.
Technical Context
The device integrates a spinning Hall probe with chopper-stabilized amplifier, demodulator, low-pass filter, and comparator with hysteresis - enabling precise latching behavior without external compensation. Its internal voltage regulator ensures stable biasing across 3.0–5.5 V supply range, while active error compensation maintains threshold accuracy over temperature and process variation.
It operates exclusively with regulated supplies and outputs a clean open-drain signal synchronized to magnetic field polarity reversal. The latch function retains state until opposite-polarity field exceeds release threshold (BRP = –2 mT), eliminating need for external debouncing in rotary indexing or BLDC rotor position feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 5.5 V - supports direct connection to regulated 5 V rails without LDO; not tolerant of unregulated or noisy supplies. |
| Magnetic Operate Point (BOP) | +2 mT (typ.) - triggers high-to-low transition when south pole approaches sensitive area; enables precise angular detection in 360° pole wheels. |
| Magnetic Release Point (BRP) | –2 mT (typ.) - resets output to high impedance upon north pole exposure; provides 4 mT hysteresis for noise immunity in EMI-prone motor environments. |
| Output Type | Open-drain - requires external pull-up; compatible with 3.3 V or 5 V logic families and enables wired-OR configurations. |
| Jitter | 0.28 µs (typ.) - ensures sub-microsecond timing consistency critical for accurate RPM measurement in BLDC commutation. |
| ESD Rating | 4 kV HBM - meets IEC 61000-4-2 Level 2 for handling robustness during assembly and field operation. |
| Operating Temperature | –40°C to +125°C - qualified for industrial-grade thermal cycling; not AEC-Q100 automotive qualified. |
Pinout & Package
TLI49631MXTSA1 is housed in the PG-SOT23-3-15 package: a lead-free, RoHS-compliant surface-mount package with 1.45 mm × 0.65 mm body size, 0.95 mm height, and standard SOT23 footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive supply input | Accepts 3.0–5.5 V regulated DC; internal regulator derives all bias voltages; must be decoupled with ≥100 nF ceramic capacitor near pin. |
| 2 - Q | Open-drain output | Sinks current when active (latched); floats high-impedance otherwise; requires external pull-up resistor (typically 4.7 kΩ to 5 V). |
| 3 - GND | Ground reference | Return path for supply and output current; must connect to low-impedance system ground plane to minimize magnetic sensing offset drift. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper-stabilized Hall sensing | Eliminates offset drift and 1/f noise, enabling stable ±2 mT thresholds across full temperature range without calibration. |
| Active error compensation | Corrects for thermal and process-induced variations in sensitivity and switching points, maintaining <±5% BOP/BRP deviation from 25°C value. |
| Low-jitter timing | 0.28 µs typical propagation delay variation ensures consistent edge placement for high-speed rotor position sampling up to 50 kHz. |
| Small-form-factor packaging | PG-SOT23-3-15 footprint allows placement directly adjacent to rotating shafts or gear teeth with minimal board area (≈1.0 mm²). |
Applications
| BLDC Motor Commutation | Window Lift Position Sensing |
|---|---|
|
Use Scenario: Detecting rotor magnet polarity in 3-phase brushless DC motors for electronic commutation timing. IC Role / Device Role / Timing Role: Digital latch providing synchronous, polarity-triggered edge transitions to microcontroller GPIO or dedicated gate driver inputs. Use Value: Enables precise 6-step commutation with <1° electrical angle uncertainty due to ±2 mT threshold tightness and 0.28 µs jitter. |
Use Scenario: Monitoring window glass position via gear tooth or magnet ring mounted on lift mechanism. IC Role / Device Role / Timing Role: Edge-triggered index counter generating pulses per rotation for absolute position estimation. Use Value: Delivers repeatable zero-crossing detection at each pole transition, supporting smooth anti-pinch control with no mechanical switch wear. |
| Power Seat Actuator Feedback | Industrial Conveyor Indexing |
|
Use Scenario: Tracking linear actuator extension/retraction in automotive power seat modules using embedded magnet strips. IC Role / Device Role / Timing Role: Latching sensor detecting discrete magnet positions along travel path to determine seat position zones. Use Value: Provides deterministic state retention between magnet encounters, eliminating missed counts in slow-moving, high-inertia systems. |
Use Scenario: Counting gear rotations on conveyor drive shafts to monitor product spacing or line speed in factory automation. IC Role / Device Role / Timing Role: High-reliability magnetic latch interfacing with PLC input modules via open-drain output. Use Value: Withstands industrial ambient temperatures (–40°C to +125°C) and EMI from nearby VFDs, ensuring uninterrupted count integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bipolar Hall latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLI49611MXTSA1 | Same package and pinout; lower sensitivity (BOP = ±3.5 mT); higher hysteresis (7 mT); no active error compensation. | Better suited for coarse-position detection in high-vibration environments where tighter thresholds are unnecessary. | Select when cost sensitivity outweighs precision requirements and magnetic field strength varies significantly across units. |
| Melexis US1881EUA-ABA-000-REEL | Similar ±2.5 mT thresholds but higher supply current (3.5 mA); includes reverse-polarity protection; same SOT23-3 package. | Valid for designs requiring fault tolerance against accidental VDD/GND swap during service or assembly. | Choose when board-level protection overhead must be minimized and 5 V supply margin allows higher quiescent draw. |
Compared with TLI49631MXTSA1, TLI49611MXTSA1 trades precision for ruggedness and cost, while US1881EUA offers integrated protection at the expense of current efficiency - making TLI49631MXTSA1 optimal for thermally stable, high-accuracy commutation where supply regulation is assured.
Availability
TLI49631MXTSA1 is available at Aetrix Electronics and suitable for brushless DC motor control, industrial conveyor indexing, automotive power seat actuation, and window lift position sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLI49631MXTSA1 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, sensor, and automotive ICs, with leadership in silicon-based Hall-effect and radar sensing solutions.
TLI49631MXTSA1 belongs to the TLI496x high-precision Hall latch family, designed specifically for industrial and consumer motion control applications demanding stable magnetic thresholds and low-jitter digital output under wide temperature variation.
FAQ
Is TLI49631MXTSA1 qualified for automotive use?
No. TLI49631MXTSA1 is specified for industrial and consumer applications only, with operating temperature range –40°C to +125°C but without AEC-Q100 qualification. For automotive-grade equivalents, Infineon's TLE series (e.g., TLE4961-2K) provides AEC-Q100 Grade 0/1 qualification, enhanced ESD, and extended lifetime testing.
What is the recommended decoupling capacitor for VDD?
A minimum 100 nF X7R ceramic capacitor placed within 2 mm of the VDD pin is required. For systems with high di/dt noise (e.g., adjacent motor drivers), add a parallel 1 µF capacitor. Ground connection must route directly to the GND pin with short, low-inductance trace to maintain magnetic threshold stability.
Can TLI49631MXTSA1 operate from an unregulated 12 V supply?
No. The device requires a regulated 3.0–5.5 V supply. Direct connection to 12 V will exceed absolute maximum ratings and cause permanent damage. A dedicated LDO (e.g., Infineon TLS850F0TESA1) or DC-DC converter with tight output regulation and low ripple (<10 mVpp) must precede the VDD pin.
Does the open-drain output support 3.3 V logic systems?
Yes. The Q pin is fully compatible with 3.3 V logic when used with a 3.3 V pull-up resistor (e.g., 4.7 kΩ). Output low voltage remains ≤0.4 V at IOL = 2 mA, ensuring solid logic '0' level; high-impedance state avoids contention in multi-sensor wired-OR configurations.
TLI49631MXTSA1 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:
- 3.5mT Trip, -3.5mT 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 ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23-3-15
TLI49631MXTSA1 FAQ
1.How can I place an order for TLI49631MXTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLI49631MXTSA1 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 TLI49631MXTSA1 reliable?
The price and inventory of TLI49631MXTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLI49631MXTSA1 is usually 5 days.
3.What payment methods are accepted for TLI49631MXTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLI49631MXTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLI49631MXTSA1?
TLI49631MXTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLI49631MXTSA1 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 TLI49631MXTSA1?
For technical support, including TLI49631MXTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLI49631MXTSA1 requirements.
6.How does Aetrix verify that TLI49631MXTSA1 is sourced from the original manufacturer or authorized distributors?
All TLI49631MXTSA1 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 TLI49631MXTSA1 meets industry standards.
7.What is the process for return or replacement of TLI49631MXTSA1?
All TLI49631MXTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLI49631MXTSA1, 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 TLI49631MXTSA1 part is unused and in its original packaging.
Return procedure for TLI49631MXTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLI49631MXTSA1 Tags
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TCS40DLR,LF
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DRV5032FBDBZR
Texas Instruments
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DRV5032FADBZR
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AH1912-FA-7
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AH1913-W-7
Diodes Incorporated
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AH1911-W-7
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TLI49631MXTSA1
Infineon Technologies
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SM453R
Honeywell Sensing and Productivity Solutions
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MLX90248ESE-EBA-000-RE
Melexis Technologies NV
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MLX92213ELD-AAA-000-RE
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TLE4913HTSA1
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US5781ESE-AAA-000-RE
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