Digital Hall latch IC in CMOS technology (2nd Gen)
MLX92211 Melexis
Melexis’ Latch & Switch sensor ICs use an innovative magnetic technology that allows the measurement of the lateral magnetic flux component.
Top features
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Lateral sensing - Triaxis® technology
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Compact module designs
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Flexibility in the magnetic design
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High accuracy
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ISO 26262 ASIL A for the MLX92211 Axx versions
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Multiple pre-programmed versions available
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Wide operating voltage range from 2.7 V to 24 V
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Operating temperature from -40°C to 150°C
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Built-in negative temperature coefficient
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Protections
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Reverse supply voltage protection
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Output current limit with auto-shutoff
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Under-voltage lockout protection
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Thermal protection
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High ESD rating / Excellent EMC performance
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RoHS-compliant packages
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Thin SOT23 3L
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TO92-3L
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AEC-Q100 qualified
Digital Hall latch IC in CMOS technology (2nd Gen) - MLX92211
Product description
MLX92211Axx: cost-effective versions MLX92211Bxx: flexible versions
The Melexis MLX92211 is a Hall-effect latch designed in mixed signal CMOS technology. The device integrates a voltage regulator, Hall sensor with an advanced offset cancellation system and an open-drain output driver, all in a single package. Based on a platform, the magnetic core is using an improved offset cancellation system allowing faster and more accurate processing. In addition is implemented a negative temperature coefficient to compensate the natural behavior 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.
In the event of a drop below the minimum supply voltage during operation, the under-voltage lock-out protection will automatically freeze the device. The output state is therefore only updated based on a proper and accurate magnetic measurement result.
The open drain output is protected against short-circuit 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. When removing the magnetic field, the device keeps its previous state.
The MLX92211 is AEC-Q100 qualified. Additionally the MLX92211A offers a variant ASIL A compliant.
The MLX92211 is supplied in a choice of either a 3-pin TO-92-Flat for through-hole mount assembly or in 3-pin TSOT for surface mount assembly.
Application examples
Automotive, Consumer and Industrial
- 3-phase BLDC motor commutation
- DC motors and index counting
- Window lifters & sunroof motors
- Cooling & expansion valves
- Power liftgate & power door motors
- Door handle & charge port motors
- Seat & steering motors
- Electronic park brake motors
Features and benefits
-
Lateral sensing - Triaxis® technology
-
Compact module designs
-
Flexibility in the magnetic design
-
-
High accuracy
-
ISO 26262 ASIL A for the MLX92211 Axx versions
-
Multiple pre-programmed versions available
-
Wide operating voltage range from 2.7 V to 24 V
-
Operating temperature from -40°C to 150°C
-
Built-in negative temperature coefficient
-
Protections
-
Reverse supply voltage protection
-
Output current limit with auto-shutoff
-
Under-voltage lockout protection
-
Thermal protection
-
-
High ESD rating / Excellent EMC performance
-
RoHS-compliant packages
-
Thin SOT23 3L
-
TO92-3L
-
-
AEC-Q100 qualified
Documents and tools
Datasheet(s)
Product flyer(s)
Selection guide(s)
IC handling and assembly
Related tech talks
Videos
Lateral sensing with integrated IMC for DC/BLDC motor applications
As brushless DC (BLDC) motors become an increasingly popular choice for many applications including blowers, cooling fans and pumps, more sophisticated control is required. By integrating an IMC into products, such as the MLX92211 IC, surface mount sensing is available, thereby simplifying the production process and reducing the space required.
Step-by-step guide to Latch & Switch portfolio
During this video, Thomas Strauven, Applications Engineer for Latch & Switch, guides you through the Melexis selection guide for the Latch & Switch portfolio. This selection guide is a parametric document that allows you to find and compare the specifications and features of our extensive Latch & Switch portfolio.
