A3973(2007) データシートの表示（PDF） - Allegro MicroSystems
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A3973 Datasheet PDF : 10 Pages
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A3973
Dual DMOS Full-Bridge
Microstepping PWM Motor Driver
B Package, 24-Pin DIP
24
A
12
1.185
0.005
0.060
0.018
0.250
0.430
0.010
0.300
0.100
0.210
0.130
All dimensions nominal, not for tooling use
(reference JEDEC MS-001 BE)
Dimensions in inches
Pins 6, 7, 18 and 19 internally fused
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
A Terminal #1 mark area
LB Package, 24-Pin SOICW
15.40
4º
24
2.20
0.27
9.60
A
7.50 10.30
0.84
12
0.65
1.27
B PCB Layout Reference View
16X
0.10 C
C
SEATING
PLANE
0.41
All dimensions nominal, not for tooling use
Dimensions in millimeters
Pins 6, 7, 18 and 19 internally fused
(Reference JEDEC MS-013 AD)
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
1.27
2.65 MAX
A Terminal #1 mark area
0.20
B Reference pad layout (reference IPC SOIC127P1030X265-24M)
All pads a minimum of 0.20 mm from all adjacent pads; adjust as necessary
to meet application process requirements and PCB layout tolerances
0.25
SEATING PLANE
GAUGE PLANE
Copyright ©2000-2007, Allegro MicroSystems, Inc.
The products described here are manufactured under one or more U.S. patents or U.S. patents pending.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to per-
mit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the
information being relied upon is current.
Allegro’s 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 information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use;
nor for any infringement of patents or other rights of third parties which may result from its use.
For the latest version of this document, visit our website:
www.allegromicro.com
Allegro MicroSystems, Inc.
10
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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