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

Infineon Technologies TLV49641MXTMA1

Name: TLV49641MXTMA1
Brand: Infineon Technologies
SKU: TLV49641MXTMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLV49641MXTMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: -

Datasheet:: TLV49641MXTMA1.pdf

Description:: MAG SW IC HALL EFFECT SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:2,710

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Product details

Overview

TLV49641MXTMA1 from Infineon Technologies is a monolithic Hall-effect switch IC in SOT23-3 package, featuring bipolar magnetic sensitivity (B_OP = ±3.5 mT, B_RP = ±2.5 mT), 3.3 V to 24 V supply range, and open-drain output with 50 mA sink capability. It operates over –40 °C to 150 °C and is used for position sensing in automotive throttle valves.

For engineers reviewing the TLV49641MXTMA1 datasheet, TLV49641MXTMA1 pinout, TLV49641MXTMA1 application, or TLV49641MXTMA1 equivalent, key selection criteria include magnetic operating point tolerance, temperature stability of switching thresholds, supply voltage headroom for noisy 12 V systems, and AEC-Q100 Grade 0 qualification status.

Technical Context

The TLV49641MXTMA1 integrates a Hall plate, chopper-stabilized amplifier, Schmitt trigger, and open-drain NMOS output stage on a single silicon die. Its chopper stabilization reduces offset drift to < ±0.5 mT over temperature, enabling stable switching in high-EMI environments like engine compartments.

Magnetic hysteresis is fixed at 1.0 mT (B_OP − B_RP), and internal reverse-polarity protection allows direct connection to 24 V battery rails without external diodes. The device includes undervoltage lockout (UVLO) that disables output below 2.7 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	3.3 V to 24 V - supports direct connection to automotive battery rails with transient tolerance up to 40 V.
Operating Temperature	−40 °C to +150 °C - qualified per AEC-Q100 Grade 0 for under-hood applications.
Magnetic B_OP	±3.5 mT - defines field strength required to turn output ON; tight tolerance enables precise mechanical gap control.
Magnetic B_RP	±2.5 mT - defines field strength required to turn output OFF; 1.0 mT hysteresis prevents chatter near threshold.
Output Type	Open-drain NMOS - sinks up to 50 mA; requires external pull-up for logic-level compatibility.
Response Time	3 µs - enables detection of fast-moving targets such as rotating camshafts or gear teeth.

Pinout & Package

SOT23-3 package with gull-wing leads, JEDEC TO-236AB outline, 1.3 mm × 2.9 mm footprint, and 1.45 mm height. Thermal pad not present; standard reflow profile compatible.

Pin/Terminal	Circuit Role	Design Meaning
V_BB	Positive supply input	Accepts 3.3–24 V; internal UVLO activates below 2.7 V to disable output.
GND	Ground reference	Return path for supply and output current; must be low-impedance for EMI immunity.
OUT	Open-drain output	Sinks up to 50 mA; requires external pull-up resistor to define logic HIGH level.

Key Features

Feature	Design Value
Chopper-stabilized front-end	Reduces thermal drift of B_OP/B_RP to < ±0.5 mT over full temperature range.
Reverse-polarity protection	Withstands −24 V applied to V_BB without damage; eliminates need for external series diode.
AEC-Q100 Grade 0 qualification	Validated for operation up to +150 °C ambient, including thermal cycling and HTOL stress.
Integrated ESD protection	±8 kV HBM on all pins - meets ISO 10605 requirements for automotive module assembly.

Applications

Throttle Position Sensing

Brake Pedal Detection

Use Scenario: Detect angular position of accelerator pedal via magnet attached to pivot shaft.

IC Role / Device Role / Timing Role: Digital on/off switch indicating pedal rest vs. actuated state.

Use Value: High-temperature stability ensures consistent trip points across engine bay thermal cycles.

Use Scenario: Monitor brake pedal travel to enable brake light activation and ADAS pre-fill commands.

IC Role / Device Role / Timing Role: Contactless switch providing fail-safe pedal presence signal.

Use Value: Reverse-polarity protection allows direct integration into 12 V vehicle power domains without added protection components.

Transmission Gear Selector

Seat Belt Buckle Detection

Use Scenario: Sense P/R/N/D positions using rotary magnet and fixed Hall sensor array.

IC Role / Device Role / Timing Role: Position-state binary indicator for transmission control unit input.

Use Value: 3 µs response time supports real-time gear engagement verification during shift events.

Use Scenario: Detect buckle insertion in driver/passenger seat assemblies.

IC Role / Device Role / Timing Role: Safety-critical occupancy confirmation switch.

Use Value: AEC-Q100 Grade 0 rating ensures reliability in long-life safety systems exposed to cabin temperature extremes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4964-2MXTMA1	Bipolar with higher B_OP (±5.0 mT); same package and pinout.	Requires stronger magnetic field or larger air gap; less sensitive to small magnet displacements.	Select when mechanical tolerances allow wider magnetic coupling variation.
TLV49611MXTMA1	Unipolar operation (B_OP = +3.5 mT only); identical supply and temp specs.	Only responds to one magnetic polarity; unsuitable for bidirectional motion sensing.	Choose for unidirectional detection where field direction is fixed and predictable.

Compared with TLV49641MXTMA1, TLE4964-2MXTMA1 offers higher magnetic sensitivity threshold but reduced positional resolution, while TLV49611MXTMA1 sacrifices bidirectional detection for simplified magnetic design in single-pole systems.

Availability

TLV49641MXTMA1 is available at Aetrix Electronics and suitable for automotive throttle control, brake pedal monitoring, transmission gear sensing, and seat belt occupancy detection requiring stable component supply across extended temperature ranges.

Supply support for TLV49641MXTMA1 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 wafer fabrication infrastructure.

The TLV4964x family delivers robust, AEC-Q100-qualified Hall switches for contactless position and proximity sensing in harsh automotive environments, emphasizing magnetic accuracy, thermal resilience, and system-level integration simplicity.

FAQ

What is the maximum continuous output sink current for TLV49641MXTMA1?

The TLV49641MXTMA1 supports a continuous output sink current of 50 mA at T_A = 25 °C, derating linearly to 30 mA at 150 °C. This rating assumes adequate PCB copper area for heat dissipation and operation within specified voltage and temperature limits. Exceeding this current may cause thermal shutdown or parametric shift.

Does TLV49641MXTMA1 require an external pull-up resistor on the OUT pin?

Yes - the OUT pin is an open-drain NMOS output and must be pulled up to a logic-compatible voltage (e.g., 3.3 V or 5 V) via an external resistor. Typical values range from 1 kΩ to 10 kΩ depending on rise time and bus loading requirements. No internal pull-up is integrated.

Is TLV49641MXTMA1 qualified for automotive use beyond AEC-Q100?

TLV49641MXTMA1 is fully qualified to AEC-Q100 Grade 0 (−40 °C to +150 °C), including stress tests for HTSL, TC, AC/DC life, and ESD. It is not certified to ISO 26262 ASIL levels, but its failure modes and diagnostic coverage are documented in Infineon's functional safety manual for system-level ASIL decomposition.

Can TLV49641MXTMA1 operate from a 3.3 V supply in low-power systems?

Yes - TLV49641MXTMA1 functions correctly down to 3.3 V supply, with guaranteed B_OP/B_RP performance and 3 µs response time. However, output voltage swing is limited by V_BB, so the external pull-up must match the logic domain of the receiving controller (e.g., 3.3 V MCU I/O).

TLV49641MXTMA1 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:: -

TLV49641MXTMA1 FAQ

1.How can I place an order for TLV49641MXTMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLV49641MXTMA1 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 TLV49641MXTMA1 reliable?

The price and inventory of TLV49641MXTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV49641MXTMA1 is usually 5 days.

3.What payment methods are accepted for TLV49641MXTMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV49641MXTMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLV49641MXTMA1?

TLV49641MXTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLV49641MXTMA1 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 TLV49641MXTMA1?

For technical support, including TLV49641MXTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV49641MXTMA1 requirements.

6.How does Aetrix verify that TLV49641MXTMA1 is sourced from the original manufacturer or authorized distributors?

All TLV49641MXTMA1 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 TLV49641MXTMA1 meets industry standards.

7.What is the process for return or replacement of TLV49641MXTMA1?

All TLV49641MXTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV49641MXTMA1, 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 TLV49641MXTMA1 part is unused and in its original packaging.

Return procedure for TLV49641MXTMA1:

1.Submit a request within 90 days.

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

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