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MLX92231LSE-AAA-007 Fiches technique(PDF) 7 Page - Melexis Microelectronic Systems |
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MLX92231LSE-AAA-007 Fiches technique(HTML) 7 Page - Melexis Microelectronic Systems |
7 / 12 page MLX92231-AAA-xxx 3-Wire Hall Effect Switch 390109223101 – REV 2 Page 7 of 12 Sept/14 7 Detailed General Description Based on mixed signal CMOS technology, Melexis MLX92231 is a Hall-effect device with a pre-programmed magnetic threshold. It allows using generic magnets, weak magnets or larger air gap. The chopper-stabilized amplifier uses switched capacitor techniques to suppress the offset generally observed with Hall sensors and amplifiers. The CMOS technology makes this advanced technique possible and contributes to smaller chip size and lower current consumption than bipolar technology. The small chip size is also an important factor to minimize the effect of physical stress. This combination results in more stable magnetic characteristics and enables faster and more precise design. The operating voltage from 2.7V to 24V, pre-programmed tc and an operating temperature range according to “L” specification make this device suitable for automotive, industrial and consumer low voltage applications. The output signal is open-drain type. Such output allows simple connectivity with TTL or CMOS logic by using a pull- up resistor tied between a pull-up voltage and the device output 8 Latching Characteristic The MLX92231-AAA exhibits bipolar magnetic switching characteristics. OUT = High Flux density Output level B OP B RP 0mT OUT = Low Latch characteristic Typically, the device behaves as a latch with symmetric operating and release switching points (BOP=|BRP|). A bipolar switch is closely operating as a latch as it requires both magnetic poles to turn the output ON and OFF. However , magnetic parameters limits are defined so that the magnetic memory is not guaranteed. In absence of magnetic field, the output could keep or change its state depending on the operating conditions. |
Numéro de pièce similaire - MLX92231LSE-AAA-007 |
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Description similaire - MLX92231LSE-AAA-007 |
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