Melexis DVK91207

The MLX91207 is a monolithic programmable Hall sensor IC that provides a high-speed analog output signal proportional to the externally applied magnetic flux density. The sensor is well suited for current sensing applications and features an additional thermometer output. Furthermore, the sensor can be integrated into position sensing applications requiring fast response times. The transfer characteristics of the MLX91207 are fully programmable (offset, gain, clamp levels, diagnostic functions, etc.). The entire analog chain features a fast response time, enabling the sensor to be used in applications requiring very fast response times (< 10 μs). In a typical application, the sensor is used in conjunction with a toroidal soft ferromagnetic core. The Hall IC is placed in a small air gap, with the current conductor passing through the interior of the ferromagnetic ring. The ferromagnetic ring concentrates and amplifies the magnetic flux onto the Hall sensor IC, which produces an output voltage proportional to the current.

• Programmable high-speed Hall sensor
• Wide bandwidth, short response time 8 μs
• Programmable linear transfer characteristics
• Optional analog ratiometric output
• Measurement range from ±15 mT to ±400 mT
• Thermometer output
• 17-bit ID number
• Single-chip SOIC8 package, RoHS compliant
• Lead-free components, compatible with 260℃ lead-free soldering profile
• Low thermal drift (gain and offset)

Current sensor applications, overcurrent detection circuits, inverter applications (hybrid electric vehicles and electric vehicles), AC/DC converters, battery management, position sensor applications