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SS2309LUA 数据表(PDF) 4 Page - SEC Electronics Inc. |
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SS2309LUA 数据表(HTML) 4 Page - SEC Electronics Inc. |
4 / 8 page SS2309 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 SS2309 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 re- mains 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 exter- nal mechanical vibration and electrical noise. 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. Powering-on the device in the hysteresis region (less than BOP and higher than BRP) allows an indeterminate output state. The correct state is attained after the first excursion beyond BOP or BRP. 0mT 0mT Output level Output level OUT = High Flux density OUT = High BOP 15Gs typ OUT = Low OUT = Low UA package - Latch characteristic BOP 15Gs typ BRP -15Gs typ BRP -15Gs typ Flux density SE package - Latch characteristic BHYS BHYS |
类似零件编号 - SS2309LUA |
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类似说明 - SS2309LUA |
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