Melexis MLX91211LUA-ABA-520-BU

The MLX91211 is a second generation medium speed Current Sensor that senses the magnetic field generated by the current flowing through a conductor, be it a cable, a bus bar or a PCB trace. For minimizing the susceptibility to external magnetic fields and maximizing the concentration of the magnetic field generated by the current flow, the sensor is typically placed inside a ferromagnetic core.

The sensor has an analog output ratiometric with varying supply voltage. The MLX91211 contains a voltage regulator for stable internal supply. The output is proportional to said magnetic field perpendicular to the package surface. The device is offered at different sensitivity settings as a function of different current sensing ranges and features a factory calibrated quiescent output voltage at 50% of the supply voltage.

The sensor is optimized for cost, and comes in 2 variants: the ABT version with multi-temperature trimming of the sensitivity, and the standard accuracy ABA version which has default trimming and wider specs.

• Linear Hall sensor optimized for AC and DC current sensing applications
• Supply voltage of 3.3V or 5V
• Analog ratiometric output voltage
• Factory trimmed magnetic sensitivity and offset
• Medium speed sensing DC to 40kHz bandwidth <10μs response time
• Fast start-up time enabling power gating
• Miniature packages RoHS compliant & Green SOT-23 3L surface mount TO92 UA 3L through hole mount
• Suitable for lead free soldering profile up to 260℃, MSL3 (TSOT) and MSL1 (UA)
• AEC-Q100 Automotive Qualified

• 12V Starter-Generators
• 48V Inverters (BSG/ISG)
• E-scooter traction inverters
• Low-Speed EVs
• Forklifts