DRV8821DCAR Datasheet PDF - TI

DESCRIPTION

●The DRV8821 provides a dual microstepping-capable stepper motor controller/driver solution for printers, scanners, and other office automation equipment applications. Two independent stepper motor driver circuits include four H-bridge drivers and microstepping-capable indexer logic. Each of the motor driver blocks employ N-channel power MOSFETs configured as an H-bridge to drive the motor windings.

●FEATURES

●• Dual PWM microstepping motor driver

●– Built-In Microstepping Indexers

●– Up to 1.5-A Current Per Winding

●– Three-Bit Winding Current Control Allows up to Eight Current Levels

●– Low MOSFET On-Resistance

●– Selectable Slow or Mixed Decay Modes

●• 8-V to 32-V Operating Supply Voltage Range

●• Internal Charge Pump for Gate Drive

●• Built-in 3.3-V Reference

●• Simple Step/Direction Interface

●• Fully Protected Against Undervoltage,Overtemperature, and Overcurrent

●• Thermally Enhanced Surface Mount Package

●APPLICATIONS

●• Printers

●• Scanners

●• Office Automation Machines

●• Gaming Machines

●• Factory Automation

●• Robotics