ATS665LSG

TRUE ZERO-SPEED GEAR TOOTH SENSOR

Operation:

After proper power is applied to the component the sensor is then capable of providing digital information that is

representative of the profile of a rotating gear. No additional optimization is needed and minimal processing circuitry is

required. This ease of use should reduce design time and incremental assembly costs for most applications. The following

output diagram is indicative of the sensor performance for the polarity indicated in the figure at the bottom of the page.

MECHANICAL PROFILE

SENSOR ELECTRICAL OUTPUT PROFILE

MAGNETIC PROFILE

Output Polarity:

The output of the sensor will switch from LOW to HIGH as the leading edge of the tooth passes the sensor face in the

direction indicated in the figure below. In this system configuration, the output voltage will be high when the sensor is facing

a tooth. If rotation occurs in the opposite direction, the output polarity will invert.

High over Tooth

Power-On State Operation:

The device is guaranteed to power up in the OFF state (logic high output).

Final Version, Rev 2.0; MN; 19Dec05

Page 5

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