A3977SLP Allegro Microsystems Inc, A3977SLP Datasheet - Page 18
![no-image](/images/manufacturer_photos/0/0/32/allegro_microsystems_inc_sml.jpg)
A3977SLP
Manufacturer Part Number
A3977SLP
Description
IC MOTOR DRVR PWM DUAL 28TSSOP
Manufacturer
Allegro Microsystems Inc
Specifications of A3977SLP
Applications
Stepper Motor Driver
Number Of Outputs
1
Current - Output
±2.5A
Voltage - Load
8 V ~ 35 V
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-20°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
Operating Current
12mA
Operating Temperature Classification
Commercial
Package Type
TSSOP EP
Operating Supply Voltage (min)
3V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
A3977SLP
Manufacturer:
ALLE
Quantity:
5 510
Part Number:
A3977SLP
Manufacturer:
N/A
Quantity:
20 000
Company:
Part Number:
A3977SLPT
Manufacturer:
ALLE
Quantity:
5 510
Company:
Part Number:
A3977SLPT
Manufacturer:
ROHM
Quantity:
5 510
Part Number:
A3977SLPT
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Part Number:
A3977SLPTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
28X
A3977
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.
failure of that life support device or system, or to affect the safety or effectiveness of that device or system.
nor for any in fringe ment of patents or other rights of third parties which may result from its use.
Copyright ©2002-2010, Allegro MicroSystems, Inc.
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-
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
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;
0.10
0.25
C
+0.05
–0.06
28
1
A
2
B
9.70 ±0.10
5.00
0.65
For the latest version of this document, visit our website:
Microstepping DMOS Driver with Translator
LP Package, 28-pin TSSOP
3.00
0.10 MAX
4.40 ±0.10
1.20 MAX
www.allegromicro.com
SEATING
PLANE
6.40 ±0.20
C
A Terminal #1 mark area
B
C
For reference only
(reference JEDEC MO-153 AET)
Dimensions in millimeters
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
Reference land pattern layout (reference IPC7351 SOP65P640X120-29CM);
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)
Exposed thermal pad (bottom surface)
GAUGE PLANE
0.25
4° ±4
SEATING PLANE
0.60 ±0.15
0.15
(1.00)
+0.05
–0.06
1.65
28
1
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
2
0.45
C
PCB Layout Reference View
5.00
0.65
3.00
6.10
18