APS11450

APS11450 2 - Three-Wire Hall-Effect Switch with Advanced Diagnostics FEATURES AND BENEFITS Functional safety □ Developed in accordance with ISO 26262:2011 to meet ASIL B requirements (pending assessment) □ Integrated background diagnostics for signal path, regulator, Hall plate and bias, overtemperature detection, and nonvolatile memory □ Defined fault state Multiple product options □ Magnetic polarity, switch points, and hysteresis □ Temperature coefficient □ Output polarity Reduces module bill-of-materials (BOM) and assembly cost □ ASIL B sensor can replace redundant sensors □ Integrated overvoltage clamp and reverse-battery diode Automotive-grade ruggedness and fault tolerance □ Extended AEC-Q100 Grade 0 qualification ○ Operation to 175°C junction temperature □ 3 to 30 V operating voltage range □ ±8 kV HBM ESD □ Overtemperature indication PACKAGES 3-pin SOT23-W (LH) 3-pin ultramini SIP (UA) Not to scale DESCRIPTION The APS11450 three-wire planar Hall-effect sensor integrated circuits (ICs) were developed in accordance with ISO 26262:2011 as a hardware safety element out of context with ASIL B capability (pending assessment) for use in automotive safetyrelated systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet. The enhanced three-wire interface provides interconnect open/ short diagnostics and a fault state to communicate diagnostic information while maintaining compatibility with legacy three-wire systems...