Part Number
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A3987 |
Manufacturer
|
Allegro MicroSystems |
Description
|
DMOS Microstepping Driver |
Published
|
Apr 2, 2007 |
Detailed Description
|
A3987 DMOS Microstepping Driver with Translator
FEATURES AND BENEFITS
▪ Low RDS(on) outputs ▪ Short-to-ground protectio...
|
Datasheet
|
A3987
|
Overview
A3987 DMOS Microstepping Driver with Translator
FEATURES AND BENEFITS
▪ 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
PACKAGE: 24-pin TSSOP with exposed thermal pad (suffix LP)
Not to scale
DESCRIPTION
The A3987 is a complete microstepping motor driver with built-in translator for easy operation.
It is designed to operate bipolar stepper motors in full, half, quarter, and sixteenth step modes, with output drive capability of 50 V and ±1.
5 A.
The...
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