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ATS622LSB

TRUE ZERO-SPEED HALL-EFFECT GEAR-TOOTH SENSOR

Allegro MicroSystems 

ATS622LSB

TRUE ZERO-SPEED,

GEAR-TOOTH SENSOR

OPERATION over operating voltage and temperature range with reference target (unless oth-

erwise noted)

Characteristic

Symbol Description

Limits

Min. Typ. Max.

Units

Air Gap Range

AG

Operating, target speed > 20 RPM

0.5

–

2.5

mm

Calibration Cycle

ncal

Output edges before which

calibration is completed*

1

1

1

Edge

Calibration Update

nr

Output falling edges for startup

calibration to be complete

64 64 64 Edges

Minimum Speed

Maximum Speed

Timing Accuracy

nmin

nmax

60 teeth per second = 1 r/s

tθ

Target speed = 1000 rpm,

0.5 mm < AG < 2.5 mm

–

0

–

r/s

– 133 –

r/s

– ±0.2 ±0.5

°

* Non-uniform magnetic profiles may require additional output pulses before calibration is completed.

REFERENCE GEAR DIMENSIONS (60-0)

Characteristic

Diameter

Tooth Width

Valley Width

Valley Depth

Thickness

Symbol

DO

T

(pC – T)

ht

F

Description

Limits

Min. Typ. Max.

– 120 –

–

3.0

–

–

3.0

–

–

3.0

–

3.0

–

–

Units

mm

mm

mm

mm

mm

115 Northeast Cutoff, Box 15036

4

Worcester, Massachusetts 01615-0036 (508) 853-5000

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