JAJSNN9B May 2023 – November 2023 TMAG5253
PRODUCTION DATA
The magnetic field of magnets based on Neodymium or the Ferrite magnets have a high temperature coefficient. The residual induction (Br) of a magnet typically reduces by 0.12%/°C for NdFeB, and 0.20%/°C for ferrite material. The TMAG5253 features sensitivity temperature compensation that is designed to directly compensate the average drift of magnets. When the operating temperature range of a system is reduced, temperature drift errors are also reduced.
For device options A1 – A4, the sensitivity at TA = 125°C is typically 12% higher than at TA = 25°C. These device options are typically used when Neodymium magnets are used along with the TMAG5253. The device options B1 – B4 are recommended when using along with Ferrite magnets. For device options B1 – B4, the sensitivity at TA = 125°C is typically 20% higher than at TA = 25°C. For device options , Z1 – Z4, the sensitivity at TA = 125°C is typically same as the value at TA = 25°C. These options are typically used when measuring ambient currents or when the magnetic field does not vary with temperature.