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MLX92231 Dataheets PDF



Part Number MLX92231
Manufacturers Melexie
Logo Melexie
Description 3-Wire Hall Effect Switch
Datasheet MLX92231 DatasheetMLX92231 Datasheet (PDF)

MLX92231-AAA-xxx 3-Wire Hall Effect Switch Datasheet 1 Features and Benefits  Wide operating voltage range: from 2.7V to 24V  Accurate switching thresholds  Reverse Supply Voltage Protection  Output Current Limit with Auto-Shutoff  Under-Voltage Lockout Protection  Thermal Protection  Traceability with integrated unique ID  High ESD rating / Excellent EMC performance 2 Application Examples  Automotive, Consumer and Industrial  Solid-state switch  Brake sensor  Clutch sensor  Sunroo.

  MLX92231   MLX92231



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MLX92231-AAA-xxx 3-Wire Hall Effect Switch Datasheet 1 Features and Benefits  Wide operating voltage range: from 2.7V to 24V  Accurate switching thresholds  Reverse Supply Voltage Protection  Output Current Limit with Auto-Shutoff  Under-Voltage Lockout Protection  Thermal Protection  Traceability with integrated unique ID  High ESD rating / Excellent EMC performance 2 Application Examples  Automotive, Consumer and Industrial  Solid-state switch  Brake sensor  Clutch sensor  Sunroof/Tailgate opener  Steering Column Lock  Open/Close detection 3 Ordering Information Product Code MLX92231 MLX92231 MLX92231 Temperature Code L L L Package Code SE UA SE Option Code AAA-0xx AAA-0xx AAA-2xx Legend: Temperature Code: Package Code: Option Code: Packing Form: Ordering Example: L (-40°C to 150°C) SE = TSOT-3L / UA = TO92-3L 0xx => 3 wire Hall Effect Switch 2xx => IMC version RE = Reel | BU=Bulk MLX92231LSE-AAA-001-RE Packing from Code RE BU RE Rev.007 – November 6, 2018 390109223101 Page 1 of 19 MLX92231-AAA-xxx 3-Wire Hall Effect Switch Datasheet 4 Functional Diagram VDD Voltage Regulator with Reverse Polarity Protection Temperature Compensation Bop/Brp reference UnderVoltage Lockout Thermal Protection Switched Hall Plate CDS Amplifier Open-Drain Output OUT Control Current Limit & Auto-Shutoff GND 5 General Description The Melexis MLX92231 is a Hall-effect unipolar switch designed in mixed signal CMOS technology. The device integrates a voltage regulator, Hall sensor with advanced offset cancellation system, automotive qualified EEPROM and an open-drain output driver, all in a single package. Based on the existing robust 922xx platform, the magnetic core has been equipped with a non-volatile memory that is used to accurately trim the switching thresholds and define the needed output magnetic characteristics (TC, BOP, BRP, Output pole functionality). In addition to that an ID has been integrated on the IC to have a complete traceability throughout the process flow. The included voltage regulator operates from 2.7 to 24V, hence covering a wide range of applications. With the built-in reverse voltage protection, a serial resistor or diode on the supply line is not required so that even remote sensors can be specified for low voltage operation down to 2.7V while being reverse voltage tolerant. In the event of a drop below the minimum supply voltage during operation, the under-voltage lock-out protection will automatically freeze the device, preventing the electrical perturbation to affect the magnetic measurement circuitry. The output state is therefore only updated based on a proper and accurate magnetic measurement result. The chopper-stabilized amplifier uses switched capacitor techniques to suppress the offset generally observed with Hall sensors and amplifiers. The CMOS technology makes this advanced technique possible and contributes to smaller chip size and lower current consumption than bipolar technology. The sma.


STNRGPF01 MLX92231 ECE80US12


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