ATS645LSH-I1 Allegro Microsystems Inc, ATS645LSH-I1 Datasheet - Page 6

• Manufacturer Part Number: ATS645LSH-I1
• Description: Hall Effect IC
• Manufacturer: Allegro Microsystems Inc

Specifications of ATS645LSH-I1

• Termination Type: Through Hole
• No. Of Pins: 4
• Mounting Type: Through Hole
• Hall Effect Type: Gear Tooth
• Supply Voltage Min: 4V
• Peak Reflow Compatible (260 C): No
• Bandwidth: 40kHz
• Output Type: Digital
• Filter Terminals: Through Hole
• Rohs Compliant: No
• Leaded Process Compatible: No
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ATS645LSH
REFERENCE TARGET, 60-0 (60 Tooth Target)
Outside Diameter
Face Width
Circular Tooth Length
Circular Valley Length
Tooth Whole Depth
Material
800
700
600
500
400
300
200
100
Characteristics
0
0.5
Reference Gear Magnetic Gradient Amplitude
1
With Reference to Air Gap
Symbol
*Differential B corresponds to the calculated difference in the magnetic fi eld as
sensed simultaneously at the two Hall elements in the device (B
D
h
1.5
t
F
t
v
o
t
Air Gap (mm)
-100
-200
-300
-400
-500
500
400
300
200
100
0
Outside diameter of target
Breadth of tooth, with respect to
branded face
Length of tooth, with respect to
branded face; measured at D
Length of valley, with respect to
branded face; measured at D
Low Carbon Steel
0
True Zero Speed Miniature Differential Peak-
2
Test Conditions
2
Reference Gear Magnetic Profile
Two Tooth-to-Valley Transitions
2.5
4
Gear Rotation (°)
o
o
6
3
Typ.
Detecting Gear Tooth Sensor IC
120
Branded Face
6
3
3
3
–
of Package
8
3.00 mm AG
0.50 mm AG
Reference Target
60-0
Units
mm
mm
mm
mm
mm
–
10
DIFF
= B
of Package
12
E1
– B
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
E2
).
Air Gap
Symbol Key
(mm)
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
5