Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Infineon Technologies TLE4941PLUSCXAMA1

Name: TLE4941PLUSCXAMA1
Brand: Infineon Technologies
SKU: TLE4941PLUSCXAMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TLE4941PLUSCXAMA1

Manufacturer:: Infineon Technologies

Category:: Switches (Solid State)

Package:: 2-SIP, SSO-2-53

Datasheet:: TLE4941PLUSCXAMA1.pdf

Description:: MAG SWITCH SPEC PURP SSO-2-53

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,423

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

TLE4941PLUSCXAMA1 from Infineon is a differential Hall-effect IC for automotive wheel speed sensing, featuring 2 mm Hall element spacing, 4.5–24 V operation, -40 to +150 °C temperature range, 1–10 kHz frequency response, and integrated self-calibration. It serves as a drop-in replacement in ABS and ESP systems with two-wire current output.

For engineers reviewing the TLE4941PLUSCXAMA1 datasheet, TLE4941PLUSCXAMA1 pinout, TLE4941PLUSCXAMA1 application, or TLE4941PLUSCXAMA1 equivalent, key selection criteria include differential magnetic immunity, first-edge detection at startup, load dump robustness, ESD tolerance (>8 kV HBM), and compatibility with tonewheels and encoders requiring south/north pole pre-induction.

Technical Context

The TLE4941PLUSCXAMA1 implements a fully integrated signal path: dual Hall probes feed a differential amplifier, then a comparator drives a switched current output stage. Offset cancellation uses a feedback loop with a speed-optimized ADC, DSP-based calibration algorithm, and offset DAC.

Its dynamic self-calibration runs immediately after power-on, enabling reliable first-edge detection before full convergence. The 1.8 nF overmolded capacitor (C-type variant) enhances EMC immunity and micro-break resistance without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Voltage	4.5–24 V: Supports full automotive battery range including cold-crank and load-dump transients.
Output Interface	2-wire current sink (7/14 mA L/H): Reduces wiring complexity and enables direct connection to ECU current-input receivers.
Frequency Range	1–10,000 Hz: Covers wheel speeds from standstill to >300 km/h with standard 48-tooth tone wheels.
Temperature Range	-40 to +150 °C: Qualified for placement near wheel hubs and transmission housings in harsh under-hood environments.
Jitter	≤2%: Ensures precise edge timing for high-resolution speed and direction calculation in ESP control loops.
Magnetic Sensitivity	Min. 0.7 mT: Enables reliable switching across large airgaps (up to 3.5 mm) with low-cost ferrite magnets.

Pinout & Package

SSO-2-53 (Small Outline Package, 2-pin, 5.3 mm body width) with integrated 1.8 nF overmolded capacitor. Terminals are optimized for PCB-level EMC performance and mechanical robustness in vibration-prone wheel-end locations.

Pin/Terminal	Circuit Role	Design Meaning
VDD/GND	Supply input / Ground reference	Single bidirectional 2-wire interface: supplies chip and carries modulated output current (7/14 mA) on same line.
OUT	Current-sink output terminal	Internally connected to VDD/GND node; no separate output pin - current modulation occurs across supply line.

Key Features

Feature	Design Value
Differential Hall sensing (2 mm spacing)	Rejects common-mode magnetic interference (e.g., stray fields from motors or solenoids) without shielding.
First-edge detection	Delivers valid output pulse within first 2 ms of power-up, enabling immediate wheel speed acquisition before calibration completes.
Dynamic self-calibration	Compensates for temperature- and stress-induced magnetic/device offsets in real time using on-chip ADC/DSP/DAC loop.
Integrated 1.8 nF capacitor	Embedded overmolded capacitance improves EMC immunity and suppresses micro-break noise during vibration, eliminating external filtering parts.
Pole-independent operation	Responds to both north and south pole transitions - supports dual-tone and asymmetric encoder geometries without polarity alignment.

Applications

ABS Wheel Speed Sensing

ESP Vehicle Dynamics Monitoring

Use Scenario: Mounted on brake caliper or knuckle to detect rotational speed of steel tone ring attached to wheel hub.

IC Role / Device Role / Timing Role: Provides precise zero-crossing timing of magnetic field changes to compute wheel angular velocity and slip ratio.

Use Value: Sub-2% jitter enables <10 ms response latency for hydraulic pressure modulation during emergency braking events.

Use Scenario: Paired with lateral/longitudinal accelerometers to monitor individual wheel speeds during cornering or split-μ road conditions.

IC Role / Device Role / Timing Role: Delivers synchronized, phase-accurate speed edges to vehicle stability controller for yaw rate estimation and torque vectoring decisions.

Use Value: Differential architecture rejects magnetic crosstalk from adjacent brake actuators, ensuring consistent edge timing across all four corners.

Automatic Transmission Input Speed Sensing

Electric Power Steering Motor Position Feedback

Use Scenario: Installed on transmission input shaft to monitor turbine speed for gear shift logic and torque converter lock-up control.

IC Role / Device Role / Timing Role: Supplies high-fidelity speed pulses to TCU for closed-loop slip control and adaptive shift scheduling.

Use Value: Wide 4.5–24 V operating range accommodates voltage sags during high-current clutch engagement without dropout.

Use Scenario: Integrated into EPS motor housing to sense rotor position via embedded magnet ring for field-oriented control.

IC Role / Device Role / Timing Role: Generates commutation-relevant speed and direction signals for motor drive inverter timing.

Use Value: South/north pole pre-induction capability allows use with low-cost diametrically magnetized rotors, reducing BOM cost vs. Hall latches.

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential wheel speed sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis MLX90242	3-pin configuration (VDD, GND, OUT); requires external pull-up; no integrated capacitor.	Lacks built-in EMC capacitor; needs external RC filter for micro-break suppression in high-vibration EPS mounts.	Select when board-level filtering is already implemented and pin count flexibility is required.
NXP TLE4922	Single-ended Hall architecture; lower magnetic immunity; no first-edge detection.	Suitable only for non-critical speed sensing (e.g., cruise control) where differential rejection is not mandated.	Choose only for cost-sensitive legacy platforms where ABS/ESP compliance is not required.

Compared with MLX90242 and TLE4922, the TLE4941PLUSCXAMA1 delivers superior magnetic noise immunity, faster system startup via first-edge detection, and reduced system-level component count due to its integrated capacitor and 2-wire architecture - critical for modern compact ABS/ESP modules.

Availability

TLE4941PLUSCXAMA1 is available at Aetrix Electronics and suitable for ABS, ESP, automatic transmission, and electric power steering applications requiring stable component supply across extended automotive lifecycles.

Supply support for TLE4941PLUSCXAMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and sensor solutions, with over 30 years of automotive qualification experience.

The TLE4941plusC belongs to Infineon's magnetic sensor product line, engineered specifically for high-reliability, safety-critical wheel speed measurement in ISO 26262 ASIL-B compliant systems.

FAQ

What is the purpose of the integrated 1.8 nF capacitor in the TLE4941PLUSCXAMA1?

The 1.8 nF capacitor is overmolded directly into the SSO-2-53 package and functions as an integrated EMC filter. It suppresses high-frequency noise coupling and mitigates micro-break effects caused by mechanical vibration at the wheel end, eliminating the need for external capacitors while improving signal integrity in harsh automotive environments.

How does first-edge detection improve system startup behavior?

First-edge detection enables the TLE4941PLUSCXAMA1 to generate a valid output pulse within the first 2 ms after power-on - before the self-calibration algorithm converges. This provides immediate wheel speed data to the ECU, reducing ABS/ESP initialization delay and supporting fail-operational behavior during vehicle start-up.

Can the TLE4941PLUSCXAMA1 be used with both tone wheels and encoder rings?

Yes - its differential architecture and pole-independent switching allow it to operate reliably with ferromagnetic tone wheels (north/south transitions) and multi-pole encoder rings (south/north pre-induction). The 2 mm Hall spacing and 0.7 mT sensitivity support both geometries across airgaps up to 3.5 mm using standard ferrite magnets.

What is the significance of the 2 mm Hall element spacing?

The 2 mm spacing between Hall elements enables higher spatial resolution for differential field gradient detection, improving rejection of uniform magnetic disturbances (e.g., stray fields from nearby solenoids). It also allows packaging in compact enclosures compatible with small-diameter encoders used in next-generation e-axle and hub-motor applications.

TLE4941PLUSCXAMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: TLE

Package/Case:: 2-SIP, SSO-2-53

Packaging:: Cut Tape (CT)

Product Status:: Active

Function:: Special Purpose

Technology:: Hall Effect

Polarization:: North Pole, South Pole

Sensing Range:: -

Test Condition:: -

Voltage - Supply:: 4.5V ~ 20V

Current - Supply (Max):: 16.8mA

Current - Output (Max):: -

Output Type:: Current Source

Features:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-SSO-2-53

TLE4941PLUSCXAMA1 FAQ

1.How can I place an order for TLE4941PLUSCXAMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4941PLUSCXAMA1 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 TLE4941PLUSCXAMA1 reliable?

The price and inventory of TLE4941PLUSCXAMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4941PLUSCXAMA1 is usually 5 days.

3.What payment methods are accepted for TLE4941PLUSCXAMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4941PLUSCXAMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4941PLUSCXAMA1?

TLE4941PLUSCXAMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4941PLUSCXAMA1 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 TLE4941PLUSCXAMA1?

For technical support, including TLE4941PLUSCXAMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4941PLUSCXAMA1 requirements.

6.How does Aetrix verify that TLE4941PLUSCXAMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4941PLUSCXAMA1 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 TLE4941PLUSCXAMA1 meets industry standards.

7.What is the process for return or replacement of TLE4941PLUSCXAMA1?

All TLE4941PLUSCXAMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4941PLUSCXAMA1, 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 TLE4941PLUSCXAMA1 part is unused and in its original packaging.

Return procedure for TLE4941PLUSCXAMA1:

1.Submit a request within 90 days.

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

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…