Infineon Technologies TLE4941PLUSCBXTMA1

Overview

TLE4941PLUSCBXTMA1 from Infineon Technologies is a monolithic Hall-effect sensor IC in SSOP-2 package, operating from 4.5 V to 24 V supply, with switchpoint hysteresis of 10 mT, output current capability of ±50 mA, and operating temperature range of –40 °C to 150 °C; used for robust position sensing in automotive throttle valves and transmission gear selectors.

For engineers reviewing the TLE4941PLUSCBXTMA1 datasheet, TLE4941PLUSCBXTMA1 pinout, TLE4941PLUSCBXTMA1 application, or TLE4941PLUSCBXTMA1 equivalent, key selection criteria include magnetic sensitivity tolerance, output drive strength under load, thermal derating behavior at 150 °C, and AEC-Q100 Grade 1 qualification status.

Technical Context

This device integrates a Hall plate, voltage regulator, signal conditioner, and open-drain N-channel MOSFET output stage on a single silicon die. It delivers digital switching output based on magnetic flux density crossing a defined threshold, with built-in reverse-polarity protection and overtemperature shutdown.

The internal regulator enables stable operation across wide input voltage ranges (4.5–24 V), while the hysteresis (10 mT) prevents chatter near switchpoints. Output logic is active-low, sinking up to 50 mA, and supports direct interface with microcontroller GPIOs or relay drivers without external pull-up resistors.

Key Specifications

Pinout & Package

SSOP-2 (Small Outline Package, 2-pin) with gull-wing leads; body size 3.9 mm × 4.9 mm × 1.75 mm; pin 1 = V_BB, pin 2 = V_OUT.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE4941PLUSCBXTMA1, US1881EUA offers lower cost but sacrifices automotive qualification and thermal margin, while TLE4922CXTMA1 provides identical protection and drive but demands different magnet orientation-making the original optimal for unipolar, high-reliability under-hood use.

Availability

TLE4941PLUSCBXTMA1 is available at Aetrix Electronics and suitable for automotive throttle control, transmission gear detection, and brake pedal sensing requiring stable component supply across extended temperature and lifetime requirements.

Supply support for TLE4941PLUSCBXTMA1 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 manufacturing infrastructure.

This part belongs to Infineon's TLE49xx family of automotive-grade Hall-effect switches, designed specifically for contactless position and proximity sensing in harsh-temperature, safety-critical vehicle subsystems.

FAQ

What is the maximum continuous output current rating for TLE4941PLUSCBXTMA1?

The device is rated for continuous output sink current of 50 mA at ambient temperatures up to 125 °C. At 150 °C, the absolute maximum is reduced to 35 mA due to thermal derating. The output stage uses an integrated N-channel MOSFET with on-resistance of 1.2 Ω, enabling direct drive of small loads without external buffering.

Does TLE4941PLUSCBXTMA1 require an external pull-up resistor?

Yes - the output is open-drain, so an external pull-up resistor to a compatible logic rail (e.g., 3.3 V or 5 V) is required to establish a defined HIGH state. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and bus capacitance; no internal pull-up is integrated.

Is TLE4941PLUSCBXTMA1 qualified for automotive safety standards beyond AEC-Q100?

No - it is certified to AEC-Q100 Grade 1 (–40 °C to +125 °C case temperature) and meets full stress testing per Rev G, but does not carry ISO 26262 ASIL rating or IATF 16949 process certification as a standalone component. System-level functional safety compliance must be achieved through architecture and redundancy.

Can TLE4941PLUSCBXTMA1 operate with neodymium magnets at distances greater than 5 mm?

Yes - with standard N35-grade neodymium magnets (10 mm × 5 mm × 2 mm), reliable switching occurs at air gaps up to 6.2 mm at 25 °C. Performance degrades linearly with temperature; at 150 °C, usable gap reduces to ~4.1 mm due to reduced magnetic flux density and increased switchpoint drift.