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TLE4998S3 Fiches technique(PDF) 27 Page - Infineon Technologies AG |
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TLE4998S3 Fiches technique(HTML) 27 Page - Infineon Technologies AG |
27 / 39 page TLE4998S Temperature Compensation Data Sheet 27 V 1.0, 2008-07 8.1 Parameter Calculation The parameters TC1 and TC2 may be calculated by: Now the digital output for a given field BIN at a specific temperature can be calculated by: BFSR is the full-range magnetic field. It is dependent on the range setting (e.g 100 mT). S0 is the nominal sensitivity of the Hall probe times the Gain factor set in the EEPROM. STC is the temperature-dependent sensitivity factor calculated by the DSP. STCHall is the temperature behavior of the Hall probe. The pre-calibration at Infineon is performed such that the following condition is met: Within the application, an additional factor BIN(T) / BIN(T0) is given due to the magnetic system. STC then needs to be modified to STCnew so that the following condition is satisfied: Therefore, the new sensitivity parameters STCnew can be calculated from the pre- calibrated setup STC using the relationship: TC1 TL 160 – 65536 ---------------------- 1000000 × = TC 2 TQ 128 – 8388608 ----------------------- 1000000 × = OUT 2 B IN B FSR ------------- S TC × S TCHall × S 0 4096 × × ⎝⎠ ⎜⎟ ⎛⎞ ⋅ OUT OS + = S TC TJ T 0 – () S TCHall TJ () × 1 ≈ B IN T () B IN T0 () -------------------- S TCnew T () S TCHall T () × × S TC T () S TCHall T () × 1 ≈≈ B IN T () B IN T0 () -------------------- S TCnew T () × S TC T () ≈ |
Numéro de pièce similaire - TLE4998S3_V01 |
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Description similaire - TLE4998S3_V01 |
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