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A3955 Datasheet PDF

Part Series:A3955 Series
Category:Motor Drivers
Description:Full Bridge PWM Motor Driver 5V 16Pin SOIC W
Document:A3955SLB Datasheet PDF (16 Pages)

A3955 Motor Drivers Datasheet PDF

#1
A3955SLB
2.3
Allegro MicroSystems
#2
A3955SLBTR-T
2.0
Allegro MicroSystems
#3
A3955SB
1.9
Allegro MicroSystems
#4
A3955SB-T
1.7
Allegro MicroSystems

A3955 Datasheet PDF Motor Drivers

16 Pages
Allegro MicroSystems
Full Bridge PWM Motor Driver 5V 16Pin SOIC W Tube
16 Pages
Allegro MicroSystems
Full Bridge Motor Driver 5V 16Pin SOIC W T/R
16 Pages
Allegro MicroSystems
IC MOTOR DRIVER PAR 16DIP

A3955SLB - Allegro MicroSystems Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
16 Pin
Case/Package
SOIC-16
Output Voltage
4.5V ~ 50V
Output Current
1.5 A
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A3955SLB - Allegro MicroSystems Function Overview

Description
The A3955 is designed to drive one winding of a bipolar stepper motor in a microstepping mode. The outputs are rated for continuous output currents to ±1.5 A and operating voltages to 50 V. Internal pulse width modulated (PWM) current control combined with an internal three-bit nonlinear digital to-analog converter allows the motor current to be controlled in full-, half-, quarter-, or eighth-step (microstepping) modes. Nonlinear increments minimize the number of control lines necessary for microstepping. Microstepping provides increased step resolution, and reduces torque variations and resonance problems at low speed.
Features and Benefits
▪ ±1.5 A continuous output current
▪ 50 V output voltage rating
▪ Internal PWM current control
▪ 3-bit nonlinear DAC
▪ Fast, mixed fast/slow, and slow current-decay modes
▪ Internal transient-suppression diodes
▪ Internal thermal shutdown circuitry
▪ Crossover-current and UVLO protection
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