True Zero Speed Miniature Differential Peak-
Detecting Gear Tooth Sensor IC
ATS645LSH
13
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Package SH SIP
0.71?.05
5.00?.10
4.00?.10
  1.00?.10
  0.60?.10
24.65?.10
13.10?.10
  1.0 REF
0.71?.10
0.71?.10
  1.60?.10
1.27?.10
  5.50?.10
  5.50?.05
8.00?.05
5.80?.05
1.70?.10
2
4
3
1
A
A
B
D
For Reference Only, not for tooling use (reference DWG-9003)
Dimensions in millimeters
A
B
C
C
D
Dambar removal protrusion (16X)
Metallic protrusion, electrically connected to pin 4 and substrate (both sides)
Thermoplastic Molded Lead Bar for alignment during shipment
Active Area Depth 0.43 mm REF
Branded
Face
Standard Branding Reference View
   = Supplier emblem
  L = Lot identifier
  N = Last three numbers of device part number
  Y = Last two digits of year of manufacture
  W = Week of manufacture
LLLLLLL
YYWW
NNN
Branding scale and appearance at supplier discretion
0.38
+0.06
0.04
E
F
F
F
E
E2
E1
0.75
0.75
Hall elements (E1, E2); not to scale
For the latest version of this document, visit our website:
www.allegromicro.com
Copyright ?004-2009, Allegro MicroSystems, Inc.
The products described herein are manufactured under one or more of the following U.S. patents: 5,264,783; 5,389,889; 5,442,283; 5,517,112;
5,581,179; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; 6,091,239; 6,100,680; 6,232,768; 6,242,908; 6,265,865;
6,297,627; 6,525,531; 6,690,155; 6,693,419; 6,919,720; 7,046,000; 7,053,674; 7,138,793; 7,199,579; 7,253,614; 7,365,530; 7,368,904; or other
patents pending.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail spec i fi ca tions as may be required to per-
mit improvements in the per for mance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the
information being relied upon is current.
Allegros products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the
failure of that life support device or system, or to affect the safety or effectiveness of that device or system.
The in for ma tion in clud ed herein is believed to be ac cu rate and reliable. How ev er, Allegro MicroSystems, Inc. assumes no re spon si bil i ty for its use;
nor for any in fringe ment of patents or other rights of third parties which may result from its use.
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