Infineon Technologies TLE5041PLUSCAAMA1

Overview

TLE5041PLUSCAAMA1 from Infineon is a differential Giant Magneto-Resistive (iGMR) wheel speed sensor designed for automotive indirect TPMS (iTPMS) systems, delivering ≤1.5° electrical jitter at 10 mm air gap, 0.5–5 kHz frequency range, and -40°C to +175°C junction temperature operation in PG-SSO-2-53 package with integrated 1.8 nF capacitor.

For engineers reviewing the TLE5041PLUSCAAMA1 datasheet, TLE5041PLUSCAAMA1 pinout, TLE5041PLUSCAAMA1 application, or TLE5041PLUSCAAMA1 equivalent, key selection criteria include jitter performance under thermal drift, stray-field immunity via differential GMR architecture, 2-wire current interface compatibility, and drop-in mechanical fit with Hall-based TLE4941plusC in ABS/ESC systems.

Technical Context

The TLE5041PLUSCAAMA1 implements a dual-element iGMR bridge with dynamic self-calibration to suppress offset and sensitivity drift across temperature, enabling stable zero-crossing detection critical for iTPMS algorithms. Its analog front-end includes low-pass filtering and a high-gain preamplifier optimized for low-amplitude signals from pole-wheel targets.

Signal processing uses a dedicated Speed-ADC algorithm with digital post-processing to extract rotational speed while rejecting harmonic distortion and magnetic interference. The 2-wire current modulation interface outputs a proportional current (4–20 mA typical) synchronized to wheel rotation, eliminating need for separate supply return line.

Key Specifications

Pinout & Package

Package: PG-SSO-2-53 - surface-mount, 2-pin, leadless ceramic package with integrated capacitor, footprint-compatible with TLE4941plusC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE4941PLUSC, TLE5041PLUSCAAMA1 delivers half the jitter and active thermal compensation-critical for iTPMS-but shares identical mechanical fit. Versus ATS6858LSGTN-T, it offers native 2-wire simplicity and superior EMC robustness, though lacks programmability.

Availability

TLE5041PLUSCAAMA1 is available at Aetrix Electronics and suitable for automotive ABS, ESC, iTPMS, and EPS applications requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 0 qualification.

Supply support for TLE5041PLUSCAAMA1 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 ICs, and sensor solutions, with global R&D and manufacturing infrastructure.

TLE5041PLUSCAAMA1 belongs to Infineon's wheel speed sensor product line, engineered specifically for high-jitter-accuracy automotive safety systems including iTPMS, ABS, and ESC-where magnetic field immunity and thermal stability are non-negotiable.

FAQ

What is the maximum allowable air gap for TLE5041PLUSCAAMA1 while maintaining iTPMS-grade jitter performance?

The device maintains ≤1.5° electrical jitter up to 10 mm air gap with standard 48-pole ferromagnetic encoder wheels. Performance degrades beyond this point due to reduced magnetic flux density at the GMR elements, increasing timing uncertainty in speed-derived pressure calculations.

Does TLE5041PLUSCAAMA1 require an external capacitor for EMC compliance?

No. It integrates a 1.8 nF overmolded capacitor within the PG-SSO-2-53 package, eliminating need for external filtering components. This reduces PCB layout complexity and improves high-frequency noise immunity in harsh automotive environments.

How does the differential iGMR architecture improve stray-field immunity compared to single-ended Hall sensors?

Its dual GMR bridge elements sense opposing magnetic polarities simultaneously, rejecting common-mode interference such as stray fields from adjacent motors or solenoids. Measured rejection exceeds ±10 mT-more than double typical Hall sensor capability-without calibration overhead.

Is TLE5041PLUSCAAMA1 compatible with existing TLE4941plusC PCB footprints?

Yes. It uses the identical PG-SSO-2-53 package with matching pad layout and solder profile. Mechanical drop-in replacement is supported, though firmware may require minor timing threshold adjustments to leverage improved jitter performance.