Datasheet4U Logo Datasheet4U.com

A3987 DMOS Microstepping Driver

A3987 Description

A3987 DMOS Microstepping Driver with Translator .
The A3987 is a complete microstepping motor driver with built-in translator for easy operation.

A3987 Features

* ▪ Low RDS(on) outputs ▪ Short-to-ground protection ▪ Shorted load protection ▪ Automatic current decay mode detection/selection ▪ Mixed and slow current decay modes ▪ Synchronous rectification for low power dissipation ▪ Internal UVLO and thermal shutdown circuitry ▪ Crossover-current protection PAC

A3987 Applications

* where a complex microprocessor is unavailable or over-burdened. The A3987 chopping control automatically selects the current decay mode (slow or mixed). When a STEP signal occurs, the translator determines if that step results in a higher or lower current in each of the motor phases. If the change i

📥 Download Datasheet

Preview of A3987 PDF
datasheet Preview Page 2 datasheet Preview Page 3

Datasheet Details

Part number
A3987
Manufacturer
Allegro MicroSystems
File Size
1.00 MB
Datasheet
A3987_AllegroMicroSystems.pdf
Description
DMOS Microstepping Driver

📁 Related Datasheet

  • A3981 - Automotive Programmable Stepper Driver (Allegro)
  • A3982 - DMOS Stepper Motor Driver (Allegro)
  • A39 - 10 TO 2000 MHz CASCADABLE AMPLIFIER (Tyco Electronics)
  • A390 - SILICON RECTIFIER (Powerex Power Semiconductors)
  • A3901 - Dual Full Bridge Low Voltage Motor Driver (Allegro)
  • A3903 - Low Voltage DC Motor Driver (Allegro Micro Systems)
  • A3907 - Low Voltage Voice Coil Motor Driver (Allegro)
  • A3909 - Dual Full Bridge Motor Driver (Allegro)

📌 All Tags

DMOS Microstepping Driver Allegro MicroSystems
Allegro MicroSystems A3987-like datasheet