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Infineon Technologies TLV49642MXTSA1
- Part No.:
- TLV49642MXTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Switches (Solid State)
- Package:
- -
- Datasheet:
-
TLV49642MXTSA1.pdf
- Description:
- MAGNETIC SWITCH HALL EFF SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,792
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Product details
Overview
TLV49642MXTSA1 from Infineon Technologies is a unipolar Hall effect switch IC designed for precision position sensing in automotive and industrial systems. It operates from 3.0 V to 32 V supply, features open-drain output, ±0.5 mT magnetic threshold stability over temperature, 28 mT typical operate point (BOP), and 5.5 mT hysteresis - enabling robust detection in noisy environments such as engine bay or motor control housings.
For engineers reviewing the TLV49642MXTSA1 datasheet, TLV49642MXTSA1 pinout, TLV49642MXTSA1 application, or TLV49642MXTSA1 equivalent, key selection criteria include magnetic sensitivity tolerance, supply voltage resilience during load-dump transients, ESD immunity (±8 kV HBM), output current capability (30 mA sink), and thermal stability of BOP/BRP across −40°C to +85°C.
Technical Context
The TLV49642MXTSA1 integrates a spinning Hall probe with chopper-stabilized amplifier, low-pass filtering, and comparator with hysteresis to suppress noise-induced switching. Its internal voltage regulator enables operation directly from unregulated 12 V or 24 V rails, while active error compensation maintains consistent magnetic thresholds despite supply and temperature variation.
It delivers open-drain output with overcurrent and overtemperature protection, reverse polarity tolerance down to −18 V, and overvoltage survival up to 42 V without external components. The device uses a fixed unipolar switching characteristic - activated only by south-pole magnetic fields - and exhibits typ. 0.35 µs output jitter for timing-critical edge detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 32 V - supports direct connection to automotive battery rails including cold-crank (≥3 V) and load-dump (≤42 V transient) |
| Operating Point (BOP) | 28 mT (typ.) - precise south-pole activation threshold for reliable gear tooth or cam lobe detection |
| Release Point (BRP) | 22.5 mT (typ.) - defines 5.5 mT hysteresis to prevent chatter near switching boundary |
| Output Type | Open-drain N-channel MOSFET - allows flexible pull-up to any logic rail (3.3 V, 5 V, 12 V) and wired-OR interfacing |
| Supply Current | 1.6 mA (typ. at 25°C) - enables low-power always-on sensing in battery-backed modules |
| Jitter | 0.35 µs (typ.) - ensures sub-microsecond timing accuracy for RPM measurement and phase alignment |
| ESD Rating | ±8 kV HBM - meets automotive-level electrostatic robustness without external protection diodes |
Pinout & Package
TLV49642MXTSA1 is housed in PG-SOT23-3-15 - a standard 3-pin surface-mount package with gull-wing leads, 0.65 mm pitch, and exposed die pad for thermal enhancement. Pin 1 is VDD, Pin 2 is Q (open-drain output), and Pin 3 is GND. The sensitive Hall element is centered under the package body between Pins 1 and 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive supply input | Accepts 3.0–32 V DC; internal regulator powers all circuitry; reverse polarity protected to −18 V |
| 2 - Q | Open-drain output | Sinks up to 30 mA; requires external pull-up; logic-low when south pole detected; high-impedance otherwise |
| 3 - GND | Ground reference | Return path for supply and output current; connects to substrate and thermal pad for heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range with overvoltage survival | Operates 3.0–32 V; withstands 42 V transients without external resistor - eliminates need for TVS or Zener clamping in 12/24 V systems |
| Temperature-stable magnetic thresholds | BOP drift ≤ ±0.5 mT from −40°C to +85°C - enables consistent switching across full automotive ambient range |
| Low-jitter digital output | Typ. 0.35 µs output jitter - supports accurate time-of-flight or period measurement in motor commutation and speed sensing |
| Integrated protection functions | Reverse polarity (−18 V), overcurrent, and overtemperature shutdown - reduces system-level fault management complexity |
| Chopper-stabilized Hall sensing | Spinning Hall probe + chopper amplifier - cancels offset drift and 1/f noise for stable DC magnetic response |
Applications
| Automotive Crankshaft Position Sensing | Industrial Motor Commutation |
|---|---|
|
Use Scenario: Detecting rotation and angular position of crankshaft via ferrous target wheel in ICE engine control units. IC Role / Device Role / Timing Role: Unipolar Hall switch providing synchronized digital edge pulses to ECU for ignition timing and fuel injection synchronization. Use Value: 28 mT BOP and 5.5 mT hysteresis ensure clean, chatter-free signal generation even with air-gap variation and vibration-induced field distortion. |
Use Scenario: Monitoring rotor position in BLDC motors for electronic commutation in HVAC blowers or power tools. IC Role / Device Role / Timing Role: Hall sensor delivering phase-aligned square-wave outputs to gate driver IC for precise 120° or sinusoidal drive sequencing. Use Value: 0.35 µs jitter and −40°C to +85°C operation guarantee timing integrity across motor thermal cycles and startup conditions. |
| White Goods Door Latch Detection | Factory Automation Proximity Switching |
|
Use Scenario: Confirming closed state of refrigerator or washing machine door using embedded magnet and PCB-mounted Hall switch. IC Role / Device Role / Timing Role: Low-power unipolar switch asserting logic-low signal when door magnet approaches within sensing range. Use Value: 1.6 mA supply current and 3.0 V minimum operation enable direct interface with 3.3 V microcontroller I/O, reducing BOM count. |
Use Scenario: Detecting presence/absence of metal parts on conveyor lines or robotic end-effectors in industrial PLC-controlled systems. IC Role / Device Role / Timing Role: Robust magnetic proximity detector replacing mechanical limit switches in dusty, humid, or high-vibration environments. Use Value: ±8 kV HBM ESD rating and 42 V overvoltage tolerance eliminate field failures caused by static discharge or wiring transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unipolar Hall switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV49641MXTSA1 | Same package and pinout; lower BOP = 15 mT (vs. 28 mT); BRP = 10 mT; hysteresis = 5 mT | Better suited for small-air-gap or weak-field applications (e.g., thin-door sensors); less margin against stray field interference | Select when magnetic field strength is limited and tighter hysteresis is acceptable for faster release |
| US1881EUA-AMI | Unipolar switch in SOT-23; BOP = 30 mT, BRP = 23 mT; no integrated overvoltage protection beyond 26 V; 5 mA supply current | Lacks 42 V transient tolerance and reverse polarity protection; higher quiescent current limits battery life in always-on designs | Consider only in cost-sensitive, non-automotive applications where supply regulation and ESD are externally managed |
Compared with TLV49641MXTSA1 and US1881EUA-AMI, TLV49642MXTSA1 offers superior supply resilience (42 V transient), lower power (1.6 mA), and tighter magnetic threshold stability (±0.5 mT), making it optimal for automotive-grade position sensing where reliability under electrical stress is critical.
Availability
TLV49642MXTSA1 is available at Aetrix Electronics and suitable for automotive crankshaft sensing, industrial BLDC motor commutation, white goods door latch detection, and factory automation proximity switching requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLV49642MXTSA1 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 ruggedized analog and mixed-signal solutions for harsh environments.
TLV49642MXTSA1 belongs to the TLV496x family of high-precision unipolar Hall switches engineered for automotive and industrial position sensing - emphasizing magnetic accuracy, supply robustness, and thermal stability over wide operating conditions.
FAQ
What is the maximum continuous supply voltage the TLV49642MXTSA1 can withstand?
The TLV49642MXTSA1 operates continuously from 3.0 V to 32 V. It survives transient overvoltages up to 42 V without external components - verified per ISO 7637-2 Pulse 5a testing - making it suitable for automotive battery-connected applications subject to load-dump events.
Does TLV49642MXTSA1 require an external pull-up resistor on the output?
Yes - the Q pin is an open-drain output and must be pulled up to a compatible voltage rail (e.g., 3.3 V, 5 V, or 12 V) via an external resistor. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus capacitance requirements.
How does the TLV49642MXTSA1 handle reverse polarity connections?
The device incorporates reverse polarity protection down to −18 V on the VDD pin, allowing safe operation even if battery terminals are accidentally swapped during installation or service - a critical feature for automotive field-replaceable modules.
Can TLV49642MXTSA1 be used in systems with strong electromagnetic interference?
Yes - it achieves >200 V/m radiated immunity (ISO 11452-2) and passes conducted immunity tests per ISO 11452-4, supported by internal low-pass filtering, chopper stabilization, and ±8 kV HBM ESD protection - eliminating need for external filtering in most industrial and automotive layouts.
TLV49642MXTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Technology:
- -
- Polarization:
- -
- Sensing Range:
- -
- Test Condition:
- -
- Voltage - Supply:
- -
- Current - Supply (Max):
- -
- Current - Output (Max):
- -
- Output Type:
- -
- Features:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- -
- Supplier Device Package:
- -
TLV49642MXTSA1 FAQ
1.How can I place an order for TLV49642MXTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV49642MXTSA1 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 TLV49642MXTSA1 reliable?
The price and inventory of TLV49642MXTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV49642MXTSA1 is usually 5 days.
3.What payment methods are accepted for TLV49642MXTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV49642MXTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV49642MXTSA1?
TLV49642MXTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV49642MXTSA1 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 TLV49642MXTSA1?
For technical support, including TLV49642MXTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV49642MXTSA1 requirements.
6.How does Aetrix verify that TLV49642MXTSA1 is sourced from the original manufacturer or authorized distributors?
All TLV49642MXTSA1 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 TLV49642MXTSA1 meets industry standards.
7.What is the process for return or replacement of TLV49642MXTSA1?
All TLV49642MXTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV49642MXTSA1, 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 TLV49642MXTSA1 part is unused and in its original packaging.
Return procedure for TLV49642MXTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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