Infineon presents XENSIV™ TLE49SR angle sensor family with outstanding stray field robustness

Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) introduces the new XENSIV™ TLE49SR angle sensor family, which combines excellent stray field immunity with high accuracy. The sensors are ideal for applications of safety-critical automotive chassis systems such as electric power steering and vehicle height leveling.

All products in the XENSIV TLE49SR family withstand stray magnetic fields of up to 8 mT. The sensors exceed the requirements of ISO11452-8 level IV for car hybridization and electrification with 4000 A/m (equal to 5 mT) for inhomogeneous stray field and eliminate the need for external shielding.

The intrinsic accuracy of the sensors defines an angle error with less than 1°. By using a look-up table, the angle error can be reduced even further: Multi point calibration (16 variable and 32 equidistant) results in an angle error below 0.5°. This feature helps to compensate angle deviations resulting e.g. from mechanical misalignments of the manufacturing process.

The angle sensors were developed according to ISO 26262 as a “safety element out of context”. The ASIL C metric on component level enables system designs up to functional safety level ASIL D.

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