SS1636

Packages 3 pin TSOT23 (suffix ST) SS1636 Unipolar Hall Switch-High sensitivity 3 pin SIP (suffix UA) Features and Benefits – 2.5V to 5.5V Operation – -40°C to 150°C Superior temperature operation range – CMOS technology – Low current consumption – Chopper-stabilized amplifier stage – CMOS inverter output (no pull-up resistance need) – High sensitivity – Small Size TSOT23 3L or SIP 3L Both RoHS compliant packages Application Examples – Automotive, Consumer and Industrial – Solid-state switch – Magneto-electric conversion switch Magnet proximity sensor for reed switch replacement in low duty cycle applications – Angular position detection – Proximity detection – Current detector Functional Block Diagram 1 V3.10 Nov 1, 2013 SS1636 Unipolar Hall Switch-High sensitivity General Description The SS1636 Hall effect sensor IC is fabricated from mixed signal CMOS technology. It incorporates advanced chopper-stabilization techniques to provide accurate and stable magnetic switch points. The circuit design provides an internally controlled clocking mechanism to cycle power to the Hall element and analog signal processing circuits. This serves to place the high current-consuming portions of the circuit into a “Sleep” mode. Periodically the device is “Awakened” by this internal logic and the magnetic flux from the Hall element is evaluated against the predefined thresholds. If the flux density is above or below the Bop/Brp thresholds then the output transistor is driven to change sta...