Melexis MLX92211LSE-AAA-000-RE

The Melexis MLX92211 is the second generation Halleffect 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 to compensate the natural behaviour of magnets becoming weaker with rise in temperature. 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 open drain output is fully protected against shortcircuit with a built-in current limit. An additional automatic output shut-off 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.

• Wide operating voltage range: from 2.7V to 24V
• Chopper-stabilized amplifier stage
• 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

• Automotive, Consumer and Industrial
• Solid-state switch
• 3-phase BLDC motor commutation
• Wiper motor
• Window lifter
• Sunroof/Tailgate opener
• Seat motor adjuster
• Electrical power steering