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A3959 Datasheet PDF

Part Series:A3959 Series
Category:Motor Drivers
Description:DMOS Full Bridge PWM Motor Driver 5V 24Pin SOIC W T/R
Document:A3959SLBTR-T Datasheet PDF (12 Pages)

A3959 Motor Drivers Datasheet PDF

#1
A3959SLBTR-T
3.7
Allegro MicroSystems
#2
A3959SLPTR-T
3.2
Allegro MicroSystems
#3
A3959SLB-T
2.5
Allegro MicroSystems
#4
A3959SB-T
2.2
Allegro MicroSystems

A3959 Datasheet PDF Motor Drivers

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Allegro MicroSystems
DMOS Full Bridge PWM Motor Driver 5V 24Pin SOIC W T/R

A3959SLBTR-T - Allegro MicroSystems Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
24 Pin
Supply Voltage (DC)
4.50V (min)
Case/Package
SOIC-24
Number of Outputs
1 Output
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A3959SLBTR-T - Allegro MicroSystems Function Overview

Description
Designed for pulse width modulated (PWM) current control of DC motors, the A3959 is capable of output currents to ±3 A and operating voltages to 50 V. Internal fixed off-time PWM current control timing circuitry can be adjusted via control inputs to operate in slow, fast, and mixed current-decay modes.
PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM-control signals. Internal synchronous rectification control circuitry is provided to reduce power dissipation during PWM operation.
Internal circuit protection includes thermal shutdown with hysteresis, undervoltage monitoring of supply and charge pump, and crossover-current protection. Special power-up sequencing is not required.
Features and Benefits
▪ ±3 A, 50 V Output Rating
▪ Low rDS(on) Outputs (270 mΩ, Typical)
▪ Mixed, Fast, and Slow Current-Decay Modes
▪ Synchronous Rectification for Low Power Dissipation
▪ Internal UVLO and Thermal-Shutdown Circuitry
▪ Crossover-Current Protection
▪ Internal Oscillator for Digital PWM Timing
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