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SS732 Dataheets PDF



Part Number SS732
Manufacturers SEC
Logo SEC
Description Hall Latch - High Sensitivity
Datasheet SS732 DatasheetSS732 Datasheet (PDF)

SS732/SS632 Hall Latch - High Sensitivity Features and Benefits – – – – Wide operating voltage range from 2.5V to 24V High magnetic sensitivity – Multi-purpose CMOS technology Chopper-stabilized amplifier stage  Superior temperature stability  Extremely low switchpoint drift  Insensitive to physical stress Low current consumption Output driver with internal pull-up resistor Tiny SOT23 3L or flat SIP 3L both RoHS Compliant packages Application Examples – – – – – – – Automotive, Consumer and I.

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SS732/SS632 Hall Latch - High Sensitivity Features and Benefits – – – – Wide operating voltage range from 2.5V to 24V High magnetic sensitivity – Multi-purpose CMOS technology Chopper-stabilized amplifier stage  Superior temperature stability  Extremely low switchpoint drift  Insensitive to physical stress Low current consumption Output driver with internal pull-up resistor Tiny SOT23 3L or flat SIP 3L both RoHS Compliant packages Application Examples – – – – – – – Automotive, Consumer and Industrial Solid-state switch Brushless DC motor commutation Speed detection Linear position detection Angular position detection Proximity detection – – –   3 pin SOT23 (suffix SO) 3 pin SIP (suffix UA) Functional Block Diagram  www.DataSheet.net/ VDD Voltage Regulatr Rpu Chopper OUT Hall Plate GND UA Package Pin 1 – V DD Pin 2 – GND Pin 3 – OUT SO Package Pin 1 – V DD Pin 2 – OUT Pin 3 – GND                                                    1 V2.00 May.1, 2012 Datasheet pdf - http://www.DataSheet4U.co.kr/ SS732/SS632 Hall Latch - High Sensitivity General Description The S732 is a bipolar Hall effect sensor IC fabricated from mixed signal CMOS technology. The device integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an output driver with internal pull-up resistor, all in a single package. It incorporates advanced chopper stabilization techniques to provide accurate and stable magnetic switch points. There are many applications for this HED – Hall Electronic Device - in addition to those listed above. The design, specifications and performance have been optimized for commutation applications in 5V and 12V brushless DC motors. Thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable for use in automotive, industrial and consumer applications. The device is delivered in a Small Outline Transistor (SOT) for surface mount process or in a Plastic Single In Line (SIP 3L flat) for through- hole mount. Both 3-lead packages are RoHS compliant. Glossary of Terms MilliTesla (mT), RoHS SOT ESD BLDC Units of magnetic flux density: 1mT = 10 Gauss Restriction of Hazardous Substances Small Outline Transistor (SOT package) – also referred with the package code “SO” Electro-Static Discharge Brush-Less Direct-Current Operating Point (B OP ) Magnetic flux density applied on the branded side of the package which turns the output driver ON (V OUT = V DSon ) Release Point (B RP ) (V OUT = high) www.DataSheet.net/ Magnetic flux density applied on the branded side of the package which turns the output driver OFF                                                    2 V2.00 May.1, 2012 Datasheet pdf - http://www.DataSheet4U.co.kr/ SS732/SS632 Hall Latch - High Sensitivity Pin Definitions and Description SOT Pin № 1 2 3 SIP Pin № 1 3 2 Name VDD OUT GND Type Supply Output Ground Function Supply Voltage pin Open Drain Output pin Ground pin Detailed General Description The S732 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 exceeds the operate point threshold, B OP . After turn-on, the output voltage is V DSon . 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 operate and release points is the hysteresis, B HYS , 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 magnetic fields with equivalent strength and opposite direction drive the output high and low. www.DataSheet.net/ Powering-on the device in the hysteresis region (less than B OP and higher than B RP ) allows an indeterminate output state. The correct state is attained after the first excursion beyond B OP or B RP . The SOT-23 device is reversed from the UA package. The SOT-23 output transistor will be latched on in the presence of a sufficiently strong North pole magnetic field applied to the marked face. Output level OUT = High OUT = High Output level B HYS B HYS OUT = Low B RP -18Gs typ OUT = Low 0mT B OP 18Gs typ Flux density B RP -18Gs typ 0mT B OP 18Gs typ Flux density UA package - Latch characteristic SO package - Latch characteristic                                                    3 V2.00 May.1, 2012 Datasheet pdf - http://www.DataSheet4U.co.kr/ SS732/SS632.


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