High-Temperature Precision Hall-Effect Switch


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Top Features


The APS11200 is a three-wire, planar Hall-effect sensor integrated circuit (IC). This device was developed in accordance with ISO 26262:2011.

This Hall-effect switch IC features extended AEC-Q100 qualification and is ideal for high-temperature operation up to 175°C junction temperatures. In addition, the APS11200 includes a number of features designed specifically to maximize system robustness such as reverse-battery protection, output current limiter, overvoltage, and EMC protection.

The single silicon chip includes: a voltage regulator, a Hall plate, small signal amplifier, chopper stabilization, Schmitt trigger, and a short-circuit-protected open-drain output. A south pole of sufficient strength turns the output on. Removal of the magnetic field—or a north pole—turns the output off. The devices include on-board transient protection for all pins, permitting operation directly from a vehicle battery or regulator with supply voltages from 2.8 to 24 V.

Two package styles provide a choice of through-hole or surface mounting. Package type LH is a modified SOT23W, surfacemount package, while UA is a three-lead ultra-mini SIP for through-hole mounting. Both packages are lead (Pb) free and RoHs compliant with 100% matte-tin leadframe plating.

ASIL LogoAPS11200 was developed in accordance with ISO 26262:2011 as a hardware safety element out of context with ASIL A capability (pending confirmation) for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet. For further information, contact your local Allegro field applications engineer or sales representative.

  • Unipolar switchpoints
  • Automotive-grade ruggedness and fault tolerance
    • Extended AEC-Q100 qualification
    • Reverse-battery and 40 V load dump protection
    • Operation from –40°C to 175°C junction temperature
    • High EMC immunity, ±12 kV HBM ESD
    • Output short-circuit and overvoltage protection
    • Superior temperature stability
    • Resistant to physical stress
  • Operation from unregulated supplies, 2.8 to 24 V
  • Chopper stabilization
  • Solid-state reliability
  • Industry-standard packages and pinouts

Part Number Specifications and Availability

Documentation and Resources


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