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Home > Products > Sensors, Transducers > Magnetic Sensors > Switches (Solid State)

Infineon Technologies TLV49611TAXBXA1

Name: TLV49611TAXBXA1
Brand: Infineon Technologies
SKU: TLV49611TAXBXA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLV49611TAXBXA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: TO-226-3, TO-92-3 (TO-226AA)

Datasheet:: TLV49611TAXBXA1.pdf

Description:: MAGNETIC SWITCH LATCH TO92-3

Quantity:: RFQ Add To RFQ list

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Inventory:4,483

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Product details

Overview

TLV49611TAXBXA1 from Infineon Technologies is a bipolar Hall effect latch IC designed for precise magnetic position sensing in consumer and industrial systems. It operates from 3.0 V to 26 V, delivers ±2 mT magnetic operate/release thresholds (BOP/BRP), features open-drain output, consumes 1.6 mA typical supply current, and supports -40°C to +125°C ambient temperature - enabling robust rotor position detection in BLDC motor commutation.

For engineers reviewing the TLV49611TAXBXA1 datasheet, TLV49611TAXBXA1 pinout, TLV49611TAXBXA1 application, or TLV49611TAXBXA1 equivalent, key selection criteria include magnetic threshold stability over temperature, unregulated supply operation capability, integrated overcurrent/overtemperature protection, and TO92S-3-1 package compatibility with legacy through-hole PCB layouts.

Technical Context

The TLV49611TAXBXA1 implements a spinning Hall probe with chopper-stabilized amplifier and demodulator to suppress offset drift, delivering high stability of magnetic thresholds across temperature. Its comparator includes hysteresis and is driven by a low-pass filtered signal path that rejects high-frequency noise while preserving edge timing for reliable latching behavior.

Internal voltage regulation enables stable operation across the full 3.0–26 V supply range without external regulators. The device integrates active error compensation and sequenced oscillator control to minimize power-on transient errors and ensure deterministic start-up behavior within 100 µs after VDD rise.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	3.0 V to 26 V - supports direct connection to unregulated 12 V or 24 V rails without external LDO.
Supply Current	1.6 mA typical - enables low-power always-on sensing in battery-backed or energy-constrained systems.
Magnetic BOP / BRP	±2 mT - tight symmetric thresholds enable accurate zero-crossing detection with standard pole wheels.
Output Type	Open-drain - allows wired-OR configuration and flexible pull-up voltage selection up to 26 V.
Operating Temp	-40°C to +125°C - qualified for under-hood and industrial enclosure environments.
ESD Robustness	±4 kV HBM - eliminates need for external TVS diodes in most consumer-grade PCB layouts.
Start-up Time	<100 µs - ensures rapid response after power application, critical for motor startup sequencing.

Pinout & Package

TLV49611TAXBXA1 is housed in a halogen-free, leaded TO92S-3-1 package (JEDEC TO-92 variant) with axial leads and epoxy body. The package provides mechanical robustness for manual assembly and thermal stability during reflow or wave soldering.

Pin/Terminal	Circuit Role	Design Meaning
1	VDD	Positive supply input - accepts 3.0–26 V; internally regulated to bias all analog blocks.
2	GND	Analog/digital ground reference - must be connected to system ground plane with low-impedance path.
3	Q	Open-drain output - sinks current when magnetic field exceeds BOP; requires external pull-up resistor.

Key Features

Feature	Design Value
Spinning Hall sensor with chopper stabilization	Reduces offset drift to <0.1 mT/°C, ensuring ±2 mT threshold stability over full temperature range.
Integrated overcurrent & overtemperature protection	Automatically disables output during fault conditions, eliminating need for external protection circuitry.
Unregulated supply operation	Operates directly from automotive or industrial 12 V/24 V rails without pre-regulation - reduces BOM count by one component.
Active error compensation	Corrects for thermal and process-induced mismatches in real time, maintaining latch accuracy across production lots.

Applications

BLDC Motor Commutation

Pole Wheel Index Counting

Use Scenario: Detecting rotor magnet polarity in 3-phase brushless DC motors for electronic commutation timing.

IC Role / Device Role / Timing Role: Bipolar latch providing synchronized digital edge transitions aligned to magnet pole transitions.

Use Value: ±2 mT thresholds ensure consistent switching point across temperature, minimizing torque ripple and acoustic noise.

Use Scenario: Counting gear teeth or slots on rotating shafts using a ferrous pole wheel and stationary magnet.

IC Role / Device Role / Timing Role: Magnetic latch generating clean, jitter-free pulses per tooth passage for speed and position calculation.

Use Value: Chopper-stabilized architecture rejects mechanical vibration-induced false triggers, improving counting reliability.

Appliance Door Detection

Industrial Valve Position Sensing

Use Scenario: Monitoring open/closed state of refrigerator, washing machine, or oven doors via embedded magnet.

IC Role / Device Role / Timing Role: Latching switch asserting logic-low output only when magnet is present and properly aligned.

Use Value: Open-drain output allows direct interface with 3.3 V or 5 V microcontroller GPIO, simplifying level-shifting design.

Use Scenario: Confirming actuator end positions in pneumatic/hydraulic valves used in factory automation.

IC Role / Device Role / Timing Role: Fail-safe position indicator with built-in overtemperature protection to prevent false signals during thermal stress.

Use Value: -40°C to +125°C rating ensures operation inside sealed valve housings exposed to ambient heat and fluid conduction.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bipolar Hall latch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV49611TAXBXATMA1	Same die, TO92S-3-1 package, but shipped in tape-and-reel (not bulk); identical electrical specs.	Preferred for automated SMT placement where bulk packaging is incompatible with pick-and-place feeders.	Select when requiring machine-ready packaging without functional change.
TLV49612TAXBXA1	Dual-output version with complementary Q and Q̅ outputs; otherwise identical magnetic and supply specs.	Required where differential signaling or hardware-based edge detection is needed without external inverters.	Select only if dual-edge timing or noise-immune logic is part of the system architecture.

Compared with TLV49611TAXBXA1, TLV49611TAXBXATMA1 offers identical performance in a different packaging format, while TLV49612TAXBXA1 adds functional redundancy at the cost of increased board area - neither serves as a drop-in replacement unless packaging or output topology aligns with design constraints.

Availability

TLV49611TAXBXA1 is available at Aetrix Electronics and suitable for BLDC motor commutation, pole wheel index counting, and appliance door detection requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLV49611TAXBXA1 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 global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200 standards.

The TLV4961x family belongs to Infineon's Sense & Control product line, engineered specifically for high-precision, temperature-stable magnetic position sensing in cost-sensitive consumer and industrial motion-control applications.

FAQ

What is the recommended pull-up resistor value for the open-drain output?

A 4.7 kΩ resistor to 5 V or 10 kΩ to 12 V is recommended for typical applications. Lower values improve rise time but increase power consumption; higher values reduce current draw but may degrade noise immunity. The output can drive up to 20 mA sink current, allowing flexibility for varied bus voltages and load capacitances.

Does TLV49611TAXBXA1 require an external capacitor on VDD?

No external bypass capacitor is required due to integrated voltage regulation and internal filtering. However, a 100 nF ceramic capacitor placed within 5 mm of the VDD and GND pins is recommended for high-noise environments to suppress fast transients and improve ESD immunity during system-level testing.

Can this device operate with a south-pole-only magnetic field?

Yes - as a bipolar latch, TLV49611TAXBXA1 switches on with a sufficient south pole (BOP = +2 mT) and switches off only when a north pole of sufficient strength (BRP = -2 mT) is applied. It retains its last state in the absence of field, making it suitable for non-continuous field detection scenarios like door closure latching.

Is the TO92S-3-1 package RoHS compliant?

Yes - the TO92S-3-1 package is leaded but fully RoHS-compliant per EU Directive 2011/65/EU Annex II, with lead content limited to exempted levels (<0.1% by weight) in the lead frame and termination plating. The epoxy molding compound is halogen-free, meeting IEC 61249-2-21 requirements.

TLV49611TAXBXA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA)

Packaging:: Bulk

Product Status:: Active

Function:: Latch

Technology:: Hall Effect

Polarization:: South Pole

Sensing Range:: 2mT Trip, -2mT Release

Test Condition:: 25°C

Voltage - Supply:: 3V ~ 26V

Current - Supply (Max):: 2.5mA

Current - Output (Max):: 25mA

Output Type:: Open Drain

Features:: Temperature Compensated

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

TLV49611TAXBXA1 FAQ

1.How can I place an order for TLV49611TAXBXA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLV49611TAXBXA1 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 TLV49611TAXBXA1 reliable?

The price and inventory of TLV49611TAXBXA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV49611TAXBXA1 is usually 5 days.

3.What payment methods are accepted for TLV49611TAXBXA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV49611TAXBXA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLV49611TAXBXA1?

TLV49611TAXBXA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLV49611TAXBXA1 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 TLV49611TAXBXA1?

For technical support, including TLV49611TAXBXA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV49611TAXBXA1 requirements.

6.How does Aetrix verify that TLV49611TAXBXA1 is sourced from the original manufacturer or authorized distributors?

All TLV49611TAXBXA1 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 TLV49611TAXBXA1 meets industry standards.

7.What is the process for return or replacement of TLV49611TAXBXA1?

All TLV49611TAXBXA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV49611TAXBXA1, 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 TLV49611TAXBXA1 part is unused and in its original packaging.

Return procedure for TLV49611TAXBXA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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