Datenblatt-Suchmaschine für elektronische Bauteile |
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SS2881ESOT Datenblatt(PDF) 4 Page - SEC Electronics Inc. |
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SS2881ESOT Datenblatt(HTML) 4 Page - SEC Electronics Inc. |
4 / 8 page SS2881 Hall Latch - High Sensitivity 4 V3.10 Nov 1, 2013 Output Behavior versus Magnetic Pole DC Operating Parameters TA = -40°C to 150°C, VDD = 3.5 to 24V (unless otherwise specified) Test Conditions (UA) Test Conditions (SO) OUT B < BRP B > BRP High B > BOP B < BOP Low The SOT-23 device is reversed from the UA package. The SOT-23 output transistor will be turned on(drops low) in the presence of a sufficiently strong North pole magnetic field applied to the marked face and turned off(hoists high) in the presence of a sufficiently strong South pole magnetic field. Detailed General Description The SS2881 exhibits latch magnetic switching characteristics. Therefore, it requires both south and north poles to operate properly. The OUT pin of these devices switches low (turns on) when a magnetic field perpendicular to the Hall sensor ex- ceeds the operate point threshold, BOP. After turn-on, the output voltage is VDSon. Note that the device latches, that is, a south pole of sufficient strength towards the branded surface of the device turns the device on. The device remains on if the south pole is removed (B →0). This latching property defines the device as a magnetic memory. When the magnetic field is reduced below the release point, BRP, the OUT pin turns off (goes high). The difference in the magnetic operating and release points is the hysteresis, BHYST, of the device. This built-in hysteresis prevents output oscillation near the switching point, and allows clean switching of the output even in the presence of external mechanical vibration and electrical noise. The device behaves as a latch with symmetric operating and release switching points (BOP=|BRP|). This means mag- 0mT 0mT Output level Output level OUT = High Flux density OUT = High BOP 30Gs typ OUT = Low OUT = Low UA package - Latch characteristic BOP 30Gs typ BRP -30Gs typ BRP -30Gs typ Flux density SE package - Latch characteristic BHYS BHYS |
Ähnliche Teilenummer - SS2881ESOT |
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Ähnliche Beschreibung - SS2881ESOT |
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