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Melexis’ Latch & Switch sensors use an innovative magnetic technology that allows the measurement of the lateral magnetic flux component.

The MLX92211 is the 2nd Gen Hall-effect latch designed in mixed signal CMOS technology. The device integrates a voltage regulator, Hall sensor with advanced offset cancellation system and an open-drain output driver, all in a single package.

Based on a brand new platform, the magnetic core is using an improved offset cancellation system allowing faster and more accurate processing while being temperature insensitive and stress independent. In addition is implemented a negative temperature coefficient of -1,100 ppm/degC to compensate the natural behavior of magnets becoming weaker with rise in temperature.

The included voltage regulator operates from 2.7 to 24 V, 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 2.7 V 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 open drain output is fully protected against short-circuit with a built-in current limit. An additional automatic output shutoff is activated in case of a prolonged short-circuit condition. A self-check is then periodically performed to switch back to normal operation if the short-circuit condition is released.

The on-chip thermal protection also switches off the output if the junction temperature increases above an abnormally high threshold. It will automatically recover once the temperature decreases below a safe value.

With latching magnetic characteristics, the output is turned low or high respectively with a sufficiently strong South or North pole facing the package top side. When removing the magnetic field, the device keeps its previous state.

The MLX92211 is delivered in a Green compliant 3-pin TSOT for surface-mount process.

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Top Features

  • Enabling of SMD reflow soldering rather than traditional through hole component with support

  • Multiple pre-programmed versions available

  • High accuracy achieved by EEPROM trimming at Melexis

  • Lateral sensing made possible by IMC-Hall® technology

  • Compact module designs

  • High flexibility by EEPROM programming

  • Flexibility in the magnetic design

  • Wide operating voltage range from 2.7 to 24 V

  • Built-in negative temperature coefficient

  • Reverse supply voltage protection

  • Output current limit with auto-shutoff

  • Under-voltage lockout protection

  • Thermal protection

  • High ESD rating/Excellent EMC performance

  • Thin SOT23 3L green compliant package
Discover all features
Digital Hall latch in CMOS technology (2nd Gen) - MLX92211

Features and benefits

  • Enabling of SMD reflow soldering rather than traditional through hole component with support

  • Multiple pre-programmed versions available

  • High accuracy achieved by EEPROM trimming at Melexis

  • Lateral sensing made possible by IMC-Hall® technology

  • Compact module designs

  • High flexibility by EEPROM programming

  • Flexibility in the magnetic design

  • Wide operating voltage range from 2.7 to 24 V

  • Built-in negative temperature coefficient

  • Reverse supply voltage protection

  • Output current limit with auto-shutoff

  • Under-voltage lockout protection

  • Thermal protection

  • High ESD rating/Excellent EMC performance

  • Thin SOT23 3L green compliant package
Used in these

Industries

  • Automotive - Transmission
  • Automotive - Powertrain
  • Automotive - Body, HVAC, Comfort & Lighting

Inspired Engineering

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