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2022-09-24 21:48:02
1.5A Dual Bipolar Stepper Motor Driver for DRV8821DCAR1/8 Microstepping Indexer
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The DRV 8821 provides a dual microstepper motor controller/drive solution for printers, scanners and other office automation equipment applications.
Two independent stepper motor driver circuits include four H-bridge drivers and indexer logic with microstepping capability. Each motor driver block is configured as an H-bridge using N-channel power MOSFETs to drive the motor windings.
A simple step/direction interface allows easy interfacing with controller circuitry. Pins allow to configure the motor in full step, half step, quarter step or eighth step mode and select slow or mixed decay mode.
An internal shutdown function provides overcurrent protection, short circuit protection, undervoltage lockout, and overtemperature.
The DRV 8821 is packaged in a 48-pin HTSSOP package (eco-friendly: RoHS&no SB/BR).
Dual PWM Microstepping Motor Driver Built-in 1.5-One Current Three-bit Winding Current Control Per Winding Allows Up to Eight Current Levels Low Resistor on MOSFET Selectable Slow or Mixed Decay Mode 8-V to 32V Operating Voltage Range Packed in 3.3 vBuilt-in gate drive internal charge pump step/direction interface fully protected against under-voltage, over-temperature and over-current thermally enhanced surface mount package