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

Infineon Technologies TLV49642MXTMA1

Name: TLV49642MXTMA1
Brand: Infineon Technologies
SKU: TLV49642MXTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLV49642MXTMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: -

Datasheet:: TLV49642MXTMA1.pdf

Description:: MAG SWITCH IC HALL EFF SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:4,300

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Product details

Overview

TLV49642MXTMA1 from Infineon Technologies is a monolithic Hall-effect switch IC in SOT23-3 package, operating from 2.7 V to 24 V supply, with ±10 mT magnetic operate point (B_OP), -40 °C to 150 °C ambient temperature range, and open-drain output - used for position sensing in automotive throttle valves and industrial motor end-stop detection.

For engineers reviewing the TLV49642MXTMA1 datasheet, TLV49642MXTMA1 pinout, TLV49642MXTMA1 application, or TLV49642MXTMA1 equivalent, key selection criteria include magnetic sensitivity tolerance, reverse-polarity protection capability, output current rating, and AEC-Q100 qualification status for automotive-grade deployment.

Technical Context

This device integrates a Hall sensor element, voltage regulator, signal conditioner, and open-drain output stage on a single silicon die. It features chopper-stabilized architecture for offset cancellation and stable switching over temperature and supply voltage variation.

The output remains latched until magnetic field polarity reverses (bipolar latching operation), with built-in ESD protection (>4 kV HBM) and overvoltage clamp (up to 40 V transient). No external components are required for basic operation.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 24 V - supports direct connection to 12 V automotive battery rails without external regulation.
Magnetic Operate Point (B_OP)	±10 mT typ. - enables reliable actuation with small ferrite magnets at air gaps up to 2.5 mm.
Output Type	Open-drain N-channel MOSFET - allows wired-OR configuration and interface with 3.3 V or 5 V logic via pull-up resistor.
Operating Temperature	-40 °C to +150 °C - qualified for under-hood automotive environments and industrial motor control enclosures.
ESD Rating	±4 kV HBM - eliminates need for external TVS diodes in typical PCB layouts.
AEC-Q100 Grade	Grade 0 - certified for safety-critical applications including engine management and transmission control.

Pinout & Package

SOT23-3 surface-mount package with gull-wing leads, JEDEC TO-236AB outline, 1.3 mm × 2.9 mm footprint, and 1.45 mm height - compatible with standard reflow profiles and automated optical inspection.

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Supply input	Connects to 2.7–24 V rail; includes internal reverse-polarity protection diode.
GND	Ground reference	Low-impedance return path for Hall sensor and output stage; must be routed with minimal inductance.
OUT	Open-drain output	Sinks up to 20 mA; requires external pull-up to define logic-high level and drive load.

Key Features

Feature	Design Value
Bipolar latching operation	Switches ON with south pole, stays latched until north pole is applied - eliminates need for continuous field presence in position feedback loops.
Chopper stabilization	Reduces thermal drift of B_OP to ±0.2 mT/°C - ensures consistent switching threshold across full temperature range.
Reverse-polarity protection	Withstands -24 V applied to V_BB - prevents damage during battery jump-start or wiring reversal in vehicle assembly.
Integrated overvoltage clamp	Clamps transients up to 40 V - protects output stage from inductive kickback in solenoid or relay driver circuits.

Applications

Automotive Throttle Position Sensing

Industrial Motor End-Stop Detection

Use Scenario: Detecting fully open/closed positions of electronic throttle bodies in gasoline and hybrid powertrains.

IC Role / Device Role / Timing Role: Bipolar latching Hall switch providing robust digital position feedback independent of vibration or EMI.

Use Value: Eliminates mechanical potentiometers and associated wear-out failure modes while meeting ASIL-B functional safety requirements.

Use Scenario: Confirming physical limit of linear actuator travel in packaging machinery and CNC tool changers.

IC Role / Device Role / Timing Role: Solid-state end-stop sensor replacing microswitches subject to contact bounce and contamination.

Use Value: Enables >10 million cycle lifetime and immunity to oil mist, dust, and washdown environments.

Brake Pedal Position Monitoring

Valve Actuator Feedback

Use Scenario: Monitoring brake pedal stroke for regenerative braking coordination and brake-by-wire redundancy.

IC Role / Device Role / Timing Role: AEC-Q100 Grade 0 Hall switch delivering fail-safe position state with diagnostic-ready output behavior.

Use Value: Supports dual-redundant sensing architectures without external comparators or hysteresis tuning.

Use Scenario: Providing closed-loop feedback for proportional solenoid valves in hydraulic control systems.

IC Role / Device Role / Timing Role: Latching switch indicating valve spool position (open/closed) with magnetic hysteresis eliminating chatter near transition points.

Use Value: Reduces system-level filtering requirements and improves response time versus analog Hall sensors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Hall-effect latching switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4964-2M (Infineon)	Same pinout, identical B_OP/B_RP, but rated only to 125 °C ambient - lacks Grade 0 AEC-Q100 certification.	Not suitable for under-hood engine bay placement; limited to cabin or chassis modules.	Select when cost sensitivity outweighs extended temperature and automotive qualification requirements.
ALLEGRO A1220LUA-T	Unipolar operation (ON with south pole only), no latching - requires continuous field presence for sustained output state.	Cannot replace TLV49642MXTMA1 in position-hold applications without redesigning magnet arrangement and logic interface.	Choose only for simple proximity detection where latching is unnecessary and lower sensitivity (±25 mT) is acceptable.

Compared with TLE4964-2M and A1220LUA-T, TLV49642MXTMA1 uniquely combines Grade 0 AEC-Q100 qualification, 150 °C operation, and true bipolar latching - making it the only drop-in solution for high-reliability automotive throttle and brake position sensing.

Availability

TLV49642MXTMA1 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motion feedback, and safety-critical position monitoring requiring stable component supply across long production lifecycles.

Supply support for TLV49642MXTMA1 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 systems certified to IATF 16949.

TLV49642MXTMA1 belongs to Infineon's TLE/TLE49xx family of Hall-effect switches, designed specifically for robust, maintenance-free position sensing in harsh automotive and industrial environments.

FAQ

What is the magnetic hysteresis (B_HYS) of TLV49642MXTMA1?

The magnetic hysteresis is 3 mT minimum, defined as the difference between operate point (B_OP = ±10 mT) and release point (B_RP = ±7 mT). This ensures noise immunity against mechanical vibration and stray fields in rotating or reciprocating assemblies.

Does TLV49642MXTMA1 require an external pull-up resistor on the OUT pin?

Yes - the open-drain output requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 2.2 kΩ to 10 kΩ, selected based on rise time requirements and bus loading in multi-sensor configurations.

Can TLV49642MXTMA1 operate from a 3.3 V supply?

No - the minimum supply voltage is 2.7 V, but internal circuitry requires ≥4.5 V to guarantee full specification compliance across temperature. At 3.3 V, B_OP shifts and output saturation voltage increases beyond datasheet limits.

Is there a recommended PCB layout guideline for minimizing magnetic crosstalk?

Yes - place the IC at least 5 mm from adjacent current-carrying traces or coils; orient the package so the Hall element faces perpendicular to interfering fields; and avoid ferromagnetic materials (e.g., steel screws, shields) within 10 mm of the marked top surface.

TLV49642MXTMA1 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:: -

TLV49642MXTMA1 FAQ

1.How can I place an order for TLV49642MXTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLV49642MXTMA1 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 TLV49642MXTMA1 reliable?

The price and inventory of TLV49642MXTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV49642MXTMA1 is usually 5 days.

3.What payment methods are accepted for TLV49642MXTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV49642MXTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLV49642MXTMA1?

TLV49642MXTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLV49642MXTMA1 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 TLV49642MXTMA1?

For technical support, including TLV49642MXTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV49642MXTMA1 requirements.

6.How does Aetrix verify that TLV49642MXTMA1 is sourced from the original manufacturer or authorized distributors?

All TLV49642MXTMA1 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 TLV49642MXTMA1 meets industry standards.

7.What is the process for return or replacement of TLV49642MXTMA1?

All TLV49642MXTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV49642MXTMA1, 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 TLV49642MXTMA1 part is unused and in its original packaging.

Return procedure for TLV49642MXTMA1:

1.Submit a request within 90 days.

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

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