ATS673 datasheet(8/19 Pages) ALLEGRO

8 / 19 page

Self-Calibrating TPOS Gear Tooth Sensor Optimized

for Automotive Cam Sensing Applications

ATS673 and

ATS674

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

Characteristic Data: Relative Timing Accuracy

0.5

1.0

1.5

2.0

2.5

3.0

Gear Speed (rpm)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

500

1000

1500

2000

2500

AG (mm)

Gear Speed (rpm)

ATS673 Relative Timing Accuracy Versus Air Gap

Rising Mechanical Edge

1000 rpm, Relative to 0.5 mm Air Gap

ATS674 Relative Timing Accuracy Versus Air Gap

Rising Mechanical Edge

1000 rpm, Relative to 0.5 mm Air Gap

ATS673 Relative Timing Accuracy Versus Air Gap

Falling Mechanical Edge

1000 rpm, Relative to 0.5 mm Air Gap

ATS674 Relative Timing Accuracy Versus Air Gap

Falling Mechanical Edge

1000 rpm, Relative to 0.5 mm Air Gap

Relative Timing Accuracy Versus Air Gap

Rising Mechanical Edge

1.5 mm Air Gap, Relative to 0.5 mm Air Gap

Relative Timing Accuracy Versus Air Gap

Falling Mechanical Edge

1.5 mm Air Gap, Relative to 0.5 mm Air Gap

-0.1

-0.2

-0.3

-0.4

-0.5

-0.6

-0.7

-0.8

0.0

0.5

1.0

1.5

2.0

2.5

3.0

-0.1

-0.2

-0.3

-0.4

-0.5

-0.6

-0.7

-0.8

0.0

0.5

1.0

1.5

2.0

2.5

3.0

0.0

0.2

0.4

0.6

0.8

1.0

1.2

0.5

1.0

1.5

2.0

2.5

3.0

0.40

0.30

0.20

0.10

-0.10

-0.20

-0.30

-0.40

500

1000

1500

2000

2500

0.40

0.30

0.20

0.10

-0.10

-0.20

-0.30

-0.40

TA (°C)

–40

150

ATS673

ATS674

TA (°C)

–40

150

TA (°C)

–40

150

TA (°C)

–40

150

ATS673

ATS674

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