A3901SEJTR-T

10
Dual Full Bridge Low Voltage Motor Driver
A3901
10
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Figure 7. Typical dual DC motor control application
Figure 8. External PWM current control in fast and slow decay modes
IN1/3
IN2/4
IOUT1-2/3-4
0A
CoastBrake Reverse
+V
BB
/R
motor
+(V
BB
–V
BEMF
)/R
motor
–(V
BB
–V
BEMF
)/R
motor
–V
BB
/R
motor
Forward
0A
IN1/3
IN2/4
IOUT1-2/3-4
+I
REG
–I
REG
Reverse/
Fast Decay
Reverse/
Slow Decay
Forward/
Fast Decay
Forward/
Slow Decay
11
Dual Full Bridge Low Voltage Motor Driver
A3901
11
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Package EJ, 10-contact DFN
2.38
10
10
2
1
2
1
A
A
Terminal #1 mark area
B
Exposed thermal pad (reference only, terminal #1
identifier appearance at supplier discretion)
All dimensions nominal, not for tooling use
(reference JEDEC MO-229WEED)
Dimensions in millimeters
Exact case and lead configuration at supplier discretion within limits shown
C
Reference land pattern layout (reference
IPC7351 SON50P300X300X80-11WEED3M);
All pads a minimum of 0.20 mm from all adjacent pads; 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)
B
PCB Layout Reference View
1.65
2.38
0.30
1
10
0.50
0.85
3.10
C
1.65
3.00
3.00
0.75
0.25
0.50
0.40
C0.08
11X
D
D
Coplanarity includes exposed thermal pad and terminals
12
Dual Full Bridge Low Voltage Motor Driver
A3901
12
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Copyright ©2005-2013, Allegro MicroSystems, LLC
Allegro MicroSystems, LLC 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
permit 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.
Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of
Allegro’s product can reasonably be expected to cause bodily harm.
The in for ma tion in clud ed herein is believed to be ac cu rate and reliable. How ev er, Allegro MicroSystems, LLC 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.
For the latest version of this document, visit our website:
www.allegromicro.com
Revision History
Revision Revision Date Description of Revision
Rev. 4 June 19, 2013 Update R
DS(on)
specifications
Rev. 5 February 7, 2014 Updated Electrical Characteristics and disclaimer statement

A3901SEJTR-T

Mfr. #:
Manufacturer:
Description:
Dual Full Bridge Motor Driver 10-Pin DFN EP T/R
Lifecycle:
New from this manufacturer.
Delivery:
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