DESCRIPTION

· The KMI25/2 and KMI25/4 are rotational speed sensors based on the Anisotropic MagnetoResistive (AMR) effect.
· KMI25/2 is designed for active target wheels (multipole encoders), while KMI25/4 is used with passive target wheels (ferromagnetic gear wheels).
· Both sensors provide reliable speed information across a wide range of speeds, air gaps, and temperatures.
· Speed data is transmitted through a current protocol at the supply pins.

FEATURES

· System in package design
· Two-wire current interface
· Rotational direction detection capability
· Digital output protocol (ArbeitsKreis protocol)
· Wide operating range for air gap and terminal voltage
· Extended temperature range operation
· High ESD protection
· Minimal jitter
· Automotive qualification according to AEC-Q100 Rev-G (grade 0)

APPLICATIONS

· Speed detection in automotive systems
· Integration with active multipole encoders (KMI25/2)
· Usage with passive ferromagnetic gear wheels (KMI25/4)
· Systems requiring reliable speed information across varying conditions