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Allegro MicroSystems

A4988SETTR-T

A4988 Series 35 V 2 A Quad Output Microstepping Motor Driver - QFN-28

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Description

This is DMOS Microstepping Driver. A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection Features and Benefits Low Rds(on) outputs Automatic current decay mode detection, selection Mixed and slow current decay modes Synchronous rectification for low power dissipation Internal UVLO Crossover-current protection 3.3 and 5 V compatible logic supply Thermal shutdown circuitry Short-to-ground protection Shorted load protection Five selectable step modes: full, 1, 2, 1, 4, 1, 8, and 1, 16 Package: 28-contact QFN with exposed thermal pad 5 mm × 5 mm × 0.90 mm (ET package) Not to scale Description The A4988 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-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A4988 includes a fixed off-time current regulator which has the ability to operate in slow or mixed decay mod.

Related Part Number

A4558 |