Analog Devices (MAX9921AUB+) Hall Effect Sensor, µMAX, 10 Pins, 6 V, 18 V

Product OverviewThe MAX9921AUB+ is a dual, 2-wire hall effect sensor interface with diagnosticsin 10 pin µMAX package. It provides a single chip solution to interface two2-wire hall effect sensor to a low voltage microprocessor (µP). This devicesupplies and monitors current drawn by two hall-effect sensors, filters thesensed current level and outputs the corresponding logic level. It includesinput diagnostics and fault protection. These features allow device to determinefault conditions such as open inputs, inputs shorted to the battery and inputsshorted to ground. If MAX9921 detects any of these conditions at either IN1 orIN2, device shuts off current to corresponding input. It provides an 80µsblanking time following hall sensor power-up or restart. The open drain logicoutputs are compatible with logic levels up to 5.5V. It is used in door modules,window lifters, Seat movers, electric sunroofs, powered lift gate controllers,powered running boards and seatbelt buckles.Supply voltage range is 6V to 18V, operating temperature range from -40°C to125°CAutomotive AEC-Q100 grade 1 qualifiedOutput enable input allows multiplexing of outputs from multiple MAX9921sProvides supply current & interfaces to two 2-wire hall sensorsError output with diagnostics of hall inputs and BAT voltage, hall outputfilteringProtects hall sensors from overvoltage by isolating them from supply transientsHall inputs protected from short to ground, ramps current to hall sensors at4mA/µsHall sensor blanking following hall sensor power-up or restartLow power shutdown, controlled with OE and DIAG inputsOperates with ±2V ground shifts between hall sensor and MAX9921ApplicationsSensing & InstrumentationProduct InformationSensor Case Style: µMAXNo. of Pins: 10PinsSupply Voltage Min: 6VSupply Voltage Max: 18VOperating Temperature Min: -40°COperating Temperature Max: 125°CMSL: MSL 1 - Unlimited