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MLX92212LSE-ABA-000-RE Datenblatt(PDF) 7 Page - Melexis Microelectronic Systems |
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MLX92212LSE-ABA-000-RE Datenblatt(HTML) 7 Page - Melexis Microelectronic Systems |
7 / 12 page MLX92212LSE 3-Wire Hall Effect Latch / Switch 390109221203 – REV 2 Page 7 of 12 Oct/13 9 Detailed General Description Based on mixed signal CMOS technology, Melexis MLX92212LSE-AAA-000 is a Hall-effect device with very high magnetic sensitivity. Melexis MLX92212LSE-ABA-000 is a Hall-effect device with a low hysteresis covering higher magnetic fields. Both versions are allowing the use of 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 2.5V to 5.5V, low current consumption and large choice of 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 10 Latching characteristic The MLX92212-AAA exhibits magnetic latching 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|). This means magnetic fields with equivalent strength and opposite direction drive the output high and low. Removing the magnetic field (B 0) keeps the output in its previous state. This latching property defines the device as a magnetic memory. The MLX92212LSE-ABA exhibits magnetic switching characteristics. Out = High Flux density Output level BOP BRP 0mT Out = Low Unipolar switch characteristic The device is south pole active: Applying a south magnetic pole greater than BOP facing the branded side of the package switches the output low. Removing the magnetic field (B 0) switches the output high. The use of the opposite magnetic pole facing the branded side does not affect the output state. |
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Ähnliche Beschreibung - MLX92212LSE-ABA-000-RE |
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