A3961SB footprint, schematic symbol and 3D model by Allegro Microsystems

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PCB Footprints

A3961SB - Allegro Microsystems PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - UDN2916B

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3D Models

A3961SB - Allegro Microsystems - 3D model - Dual-In-Line Packages - UDN2916B

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Datasheet Download Datasheet
Stock & Prices Price & Stock for A3961SB
Part Number A3961SB
Manufacturer Allegro Microsystems
Pin Count 24
Part Category Integrated Circuit
Package Category Dual-In-Line Packages
Footprint Name Dual-In-Line Packages - UDN2916B
Released Date Jun 2, 2022
Last Modified Date Mar 7, 2023 4:10 PM UTC
Pinout / Pin List Click Here (Member Only)

A3961SB Details

Manufacturer Part Number:
A3961SB
Part Life Cycle Code:
Obsolete
Part Package Code:
DIP
Package Description:
POWER, PLASTIC, DIP-24
Pin Count:
24
ECCN Code:
EAR99
HTS Code:
8542.39.00.60
Manufacturer:
Allegro MicroSystems LLC
YTEOL:
0
Analog IC - Other Type:
STEPPER MOTOR CONTROLLER
JESD-30 Code:
R-PDIP-T24
JESD-609 Code:
e0
Length:
31.875 mm
Number of Functions:
2
Number of Terminals:
24
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-20 °C
Output Current-Max:
0.8 A
Package Body Material:
PLASTIC/EPOXY
Package Code:
DIP
Package Equivalence Code:
DIP24,.3
Package Shape:
RECTANGULAR
Package Style:
IN-LINE
Qualification Status:
Not Qualified
Seated Height-Max:
5.33 mm
Supply Current-Max (Isup):
85 mA
Supply Voltage-Max (Vsup):
5.25 V
Supply Voltage-Min (Vsup):
4.75 V
Supply Voltage-Nom (Vsup):
5 V
Surface Mount:
NO
Technology:
BIPOLAR
Temperature Grade:
OTHER
Terminal Finish:
TIN LEAD
Terminal Form:
THROUGH-HOLE
Terminal Pitch:
2.54 mm
Terminal Position:
DUAL
Width:
7.62 mm

A3961SB Frequently Asked Questions (FAQs)

Allegro provides a recommended PCB layout in their application note AN296040, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and thermal dissipation.
The maximum allowable motor current can be calculated based on the device's thermal characteristics and the application's operating conditions. Allegro provides a thermal calculation worksheet in their application note AN296040 to help with this calculation.
The VREG pin is an internal voltage regulator output that can be used to power external circuitry, such as sensors or logic devices. It is recommended to use a capacitor to filter the output voltage and ensure stability.
The A3961SB has a built-in overcurrent protection feature that can be enabled by connecting a sense resistor to the IS pin. The device will shut down if the current exceeds the programmed threshold. Allegro provides more information on implementing overcurrent protection in their application note AN296040.
Allegro recommends using a dedicated enable signal for each device and connecting the clock and data lines in a daisy-chain configuration. This ensures that each device receives a unique enable signal and prevents bus contention.

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