ATS627LSG datasheet(15/22 Pages) ALLEGRO

15 / 22 page

True Zero Speed, Low Jitter, High Accuracy

Position Sensor IC

ATS627LSG

Allegro MicroSystems, Inc.

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Reference Target 60+2

Characteristics

Symbol

Test Conditions

Typ.

Unit

Symbol Key

Outside Diameter

Outside diameter of target

120

DO ht

Branded Face

of Package

Air Gap

Face Width

Breadth of tooth, with respect to

branded face

6mm

Angular Tooth Thickness

Length of tooth, with respect to

branded face; measured at Do

deg.

Signature Region Angu-

lar Tooth Thickness

tSIG

Length of signature tooth, with

respect to branded face; measured

at Do

deg.

Angular Valley Thickness

Length of valley, with respect to

branded face; measured at Do

deg.

Tooth Whole Depth

3mm

Material

Low Carbon Steel

–

Reference Gear Magnetic Profile

Two Tooth-to-Valley Transitions

-500

-400

-300

-200

-100

100

200

300

400

500

Gear Rotation (°)

024

0.50

(mm)

Air Gap

0.50 mm AG

3.00 mm AG

0.75

1.00

1.25

1.50

1.75

2.00

2.25

2.50

2.75

3.00

Reference Gear Magnetic Gradient Amplitude

With Reference to Air Gap

Air Gap (mm)

11.5

0.5

2.5

1400

1200

1000

800

600

400

200

Reference Target

Signature Region

60+2

of Package

Branded Face

Pin 4

Pin 1

Reference Target Characteristics

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