DESCRIPTION

· The TMR40xx series geartooth sensor uses a push-pull Wheatstone bridge design.

· It includes single or dual-channel Wheatstone full bridge with 4 or 8 TMR sensing elements.

· The bridge provides differential voltage output along the magnetic field gradient.

· Dual-channel bridge generates orthogonal sine/cosine signals for position and direction detection.

· High sensitivity detects small magnetic field changes with good temperature stability.

· Available in multiple TMR sensing element spacings from 0.25mm to 3.0mm.

· Compact LGA packages: 3mm×3mm×0.9mm and 3mm×6mm×0.9mm.

FEATURES

· Utilizes Tunneling Magnetoresistance (TMR) technology.

· High saturation field for operation in large DC magnetic fields.

· High sensitivity to magnetic gradients.

· Compatible with small pitch gear measurements.

· Sine/cosine signal output with precise phase difference.

· Excellent resistance to external magnetic field interference.

· Wide air gap tolerance.

· DC (zero speed) operation capability.

· Excellent thermal stability.

APPLICATIONS

· Gear tooth sensing in automotive and industrial applications.

· Position and speed detection in rotating machinery.

· Direction detection in mechanical systems.

· High precision magnetic field measurement.