Magnetoresistive Position Sensors

SS552MT Surface Mount Sensor

SS552MT Series

Sensing and Control

FEATURES

• Low gauss operation can

extend sensing distance to

one inch or more,

depending upon size

• Digital current sinking

output

• Omnipolar – can be

operated with either north

or south magnetic pole

• 0 kHz to over 100 kHz

operating speed

• Surface-mount package

allows automated, lower

cost assembly

• Small size

TYPICAL APPLICATIONS

• Cylinder position sensing

in pneumatic cylinders

• Elevator sensor

• Lid sensor for laptop

computers

• Position sensor for material

handling equipment

• Geartooth sensor for

industrial or automotive

applications

WARNING

PERSONAL INJURY

DO NOT USE these

products as safety or

emergency stop devices or

in any other application

where failure of the product

could result in personal

injury.

Failure to comply with

these instructions could

result in death or serious

injury.

SS552MT is a digital position sensor in an SOT-89 style surface-mount

package with omnipolar magnetic action. The sensor has magnetoresistive

material integrated on silicon and encapsulated in a plastic package. The

integrated circuit provides a digital output in response to very low magnetic

fields. Though this signal is identical to our digital Hall effect sensors, it can

be achieved by magneto-resistive sensors at much greater sensor-to-

magnet distances.

Surface-mount packages are mounted directly on the electrical traces on the

PC board and attached by an automatic solder reflow operation which

requires no holes, so it reduces the cost of the PC board. These packages

are supplied on tape and reel and can be automatically placed on PC boards

by use of pick-and-place equipment.

SS552MT Series is operated by magnetic fields (North or South) parallel to

the sensor package.

fields which are parallel to the IC may affect operation.

WARNING

MISUSE OF DOCUMENTATION

• The information presented in this product sheet is for reference only. Do

not use this document as a product installation guide.

• Complete installation, operation, and maintenance information is provided

in the instructions supplied with each product.

Failure to comply with these instructions could result in death or

serious injury.