A3992 Datasheet, PDF (13/13 Pages) Allegro MicroSystems – DMOS Dual Full-Bridge Microstepping PWM Motor Driver

A3992
DMOS Dual Full-Bridge
Microstepping PWM Motor Driver
Package LP, 24 Pin TSSOP with Exposed Thermal Pad
24
Preliminary dimensions, for reference only
Dimensions in millimeters
U.S. Customary dimensions (in.) in brackets, for reference only
(reference JEDEC MO-153 ADT)
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}
B _{Exposed thermal pad (bottom surface)}
C Reference land pattern layout (reference IPC7351
TSOP65P640X120-25M); adjust as necessary to meet
application process requirements and PCB layout
tolerances; when mounting on a multilayer PCB, thermal
vias at the exposed thermal pad land can improve thermal
dissipation (reference EIA/JEDEC Standard JESD51-5)
A
12
24X
0.10 [.004] C
24X
0.30
0.19
.012
.007
0.10 [.004] M C A B
0.45 .018
NOM
7.9 .311
7.7 .303
B
0.65 .026
0.65 .026
NOM
A
B
4.5 .177
4.3 .169
6.6 .260
6.2 .244
C
SEATING
PLANE
1.20 .047
MAX
0.15 .006
0.00 .000
2X 0.20 .008
MIN
C
3 .118
NOM
5.9 .232
NOM
1.85 .073
NOM
4.32 .170
NOM
22X 0.20 .008
MIN
8º
0º
0.20 .008
0.09 .004
0.75 .030
0.45 .018
1 .039
REF
0.25 .010
SEATING PLANE
GAUGE PLANE
The products described here are manufactured under one or more U.S. patents or U.S. patents pending.
Allegro reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit 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 products are not authorized for use as critical components in life-support devices or systems without express written approval.
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.
Copyright© 2006, Allegro MicroSystems, Inc.
Allegro MicroSystems, Inc.
13
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com