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The MLX91219LDC-AAA-000-RE is a monolithic Hall effect sensor that is sensitive to magnetic flux density applied orthogonally to the surface of an integrated circuit. The sensor provides an analogue output voltage proportional to the applied magnetic flux density.

The MLX91219LDC-AAA-000-RE's transfer characteristics are fine-tuned for temperature at the factory and can be programmed (offset, sensitivity, filtering, internal overcurrent threshold) during end-customer calibration. With its 400kHz bandwidth and fast response time, it is particularly well suited for high-speed applications such as inverters and converters, where fast response times are required due to rapid switching.

In typical current sensing applications, the sensor is used in conjunction with a toroidal soft ferromagnetic core. It is recommended to laminate this core for high bandwidth applications.MLX91219 is placed in a small air gap where the current conductor (busbar or cable) passes through the inside of the ferromagnetic ring. On the one hand, the ferromagnetic ring concentrates and amplifies the magnetic flux seen by the sensor's integrated circuits, while at the same time attenuating external magnetic interference.

Features and benefits 

End-programmable sensor 

Ratiometric analogue output 

Flexible supply voltage Flexible supply voltage, factory selectable in 5V or 3.3V mode 

Measurement range from ±12.5 to ±400mT  

High speed sensing 

DC to 400kHz bandwidth 

2µs response time 

Linearity up to ±0.5% full scale 

Low noise 

AEC-Q100 - Class 0 Automotive Approved 

Very low thermal drift over wide temperature range Very low thermal drift over temperature range 

Offset drift (<5mV) 

Sensitivity drift (<1) 

Internal overcurrent detection 

RoHS compliant 

Available in SIP4-VA (MSL-1) and SOIC8 packages (MSL-3)

Application examples 

High-voltage traction motor inverters 

48V boost recovery inverters 

DCDC converters 

Smart battery junction boxes  

Smart fuse overcurrent detection 

Battery Management System (BMS) redundancy monitoring

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.