Current sensor features Triaxis Hall technology

Current sensor features Triaxis Hall technology

The MLX91206 monolithic sensor IC incorporates Triaxis Hall technology, which is sensitive to the flux density applied parallel to the IC surface, unlike conventional planar Hall technology that is only sensitive to the flux density applied orthogonally to the IC surface. This contactless current sensor device consists of a CMOS Hall integrated circuit with a thin ferromagnetic layer structured on its surface.

The sensor is particularly appropriate for dc and/or ac current measurements up to 90 kHz with ohmic isolation. Typical accuracy is better than ±1% at room temperature or ±2.5% over the full temperature range of –40° to 125°C.

The transfer characteristic is programmable (offset, gain, clamping levels, diagnostic functions, …). The output is selectable between analog and PWM. The linear analog output is used for applications where a fast response (<10 µs) is required, whereas the PWM output is used for applications where low speed but high output signal robustness is required.

The MLX91206 features overvoltage and reverse-voltage protection, including broken track diagnostics, and can be used as a standalone current sensor connected directly to a cable. Packaged in a SOIC8 packages, the part comes in two versions: the MLX91206CAL, which is suitable for a low magnetic field range of ±10 mT, and the MLX91206CAH, which is suitable for high magnetic field range of up to ±25 mT. (0.95 euros ea/100,000 — available now.)

Melexis , Concord , NH
Sales 603-223-2362

http://www.melexis.com