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MLX92232LUA-AAA-002-BU Datasheet(PDF) 5 Page - Melexis Microelectronic Systems |
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MLX92232LUA-AAA-002-BU Datasheet(HTML) 5 Page - Melexis Microelectronic Systems |
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5 / 12 page  MLX92232 End of line programmable Hall-effect Latch / Switch 3901092232 – REV 2 Page 5 of 12 Nov/14 5 Magnetic Specifications DC Operating Parameters VDD = 3.5V to 24V, TA = -40°C to 150°C (unless otherwise specified) Parameter Symbol Test Conditions Min Typ (1) Max Units Latch Threshold Programming Range (2, 6) BLTH VDD=12V, TA=25°C ±0.4 ±80 mT Switch Operating Point Programming Range (3, 6) BOP VDD =12V, TA =25°C ±1.5 ±66 mT Proportional Hysteresis Ratio Programming Range HYSRATIO (4, 7) HYSRATIO VDD=12V, TA=25°C 0.10 0.55 Fixed Hysteresis Value 0 (5) BFHYS0 0 mT Fixed Hysteresis Value 1 (5, 8) BFHYS1 1 mT Fixed Hysteresis Value 2 (5) BFHYS2 1.2 mT Fixed Hysteresis Value 3 (5) BFHYS3 1.4 mT Fixed Hysteresis Value 4 (5) BFHYS4 1.8 mT Fixed Hysteresis Value 5 (5) BFHYS5 2.2 Latch sensor Magnetic Offset (BOP + BRP)/2 BOFFSET TA = 25°C -0.5 tbd +0.5 mT BOFFSET (8) TA = -40°C to 150°C -0.9 +0.9 mT Temperature Coefficient (9) TC Flat 0 ppm/ºC SmCo, - 400 NdFeB, - 1100 Hard Ferrite, - 2000 Factory Programmed BOP, Switch BOP VDD = 12V, TA = 25°C, programming target 28mT 26 28 30 mT Factory Programmed BRP, Switch BRP VDD = 12V, TA = 25°C, programming target 28mT, HYSRATIO = 0.75 19 21 23 mT Table 3: Magnetic specifications The hysteresis is programmable for each Bop point with a fixed value or proportional (ratiometric) to BOP : 1) Ratiometric hysteresis example: BOP = 10mT 4.5mT ≤ BRP ≤ 9mT 2) Fixed hysteresis example: BOP = 10mT 7.8mT ≤ BRP ≤ 9mT 1. The typical values are defined at TA = 25ºC and VDD = 12V 2. For Latch sensor BLTH = (BOP - BRP )/2. The Latch programming step is typically between 0.7% and 1.5% of the programmed BLTH value for |BLTH| ≥ 1.2mT and 0.018mT for |BLTH| ≤ 1.2mT 3. For Switch sensor the BOP programming step is typically between 0.7% and 1.5% of the programmed BOP value for |BOP| ≥ 4.8mT and 0.072mT for |BOP| ≤ 4.8mT 4. For Switch sensor with proportional hysteresis HYSRATIO = BHYS / BOP. The HYSRATIO programming step is 0.05 5. For Switch sensor with fixed hysteresis value 6. Guaranteed by design and verified by characterization. The programming ranges for BLTH and BOP include some margin for process deviations 7. The given min/max limits are typical values 8. Guaranteed by design and verified by characterization 9. The Temperature Coefficient is calculated using following formula: TC = C ppm/ , 10 * * 190 6 25 40 150 B B B TC |
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