A3989 Allegro MicroSystems, A3989 Datasheet - Page 12

• Manufacturer Part Number: A3989
• Description: Bipolar Stepper and High Current DC Motor Driver
• Manufacturer: Allegro MicroSystems

A3989
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.
use; nor for any infringement of patents or other rights of third parties which may result from its use.
Copyright© 2006 AllegroMicrosystems, 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
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
4X0.20
MIN
4X0.20
MIN
A Terminal #1 mark area
B Exposed thermal pad (reference only, terminal #1
C
Preliminary dimensions, for reference only
(reference JEDEC MO-220VJJD-1, except exposed thermal pad)
Dimensions in millimeters
U.S. Customary dimensions (in.) in brackets, for reference only
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
identifier appearance at supplier discretion)
Reference land pattern layout (reference IPC7351
QFN50P600X600X100-37V1M); 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)
.008
.008
1.15
NOM
0.25
NOM
.045
.010
1
2
36
Bipolar Stepper and High Current DC Motor Driver
4.15
NOM
5.8
NOM
C
EV Package, 36 Pin QFN with Exposed Thermal Pad
.163
.228
For the latest version of this document, visit our website:
32X0.20
MIN
.008
0.50
NOM
4.15
NOM
.020
.163
36X
www.allegromicro.com
36X
5.8
NOM
0.30
0.18
0.10 [.004] M C A B
0.05 [.002] M C
0.08 [.003]
.228
.012
.007
R0.30
REF
C
.012
1
2
2
1
0.75
0.35
36
0.50 .020
36
A
.030
.014
4.15
NOM
6.15
5.85
.163
.242
.230
4.15
NOM
6.15
5.85
A
.163
B
0.05
0.00
.242
.230
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
.002
.000
0.20
REF
SEATING
PLANE
1.00
0.80
.008
.039
.031
C
1