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DRV8821_1007 Datasheet(PDF) 1 Page - Texas Instruments |
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DRV8821_1007 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 20 page DRV8821 www.ti.com SLVS912E – JANUARY 2009 – REVISED AUGUST 2010 DUAL STEPPER MOTOR CONTROLLER/DRIVER Check for Samples: DRV8821 1 FEATURES • Simple Step/Direction Interface 2 • Dual PWM microstepping motor driver • Fully Protected Against Undervoltage, Overtemperature, and Overcurrent – Built-In Microstepping Indexers • Thermally Enhanced Surface Mount Package – Up to 1.5-A Current Per Winding – Three-Bit Winding Current Control Allows APPLICATIONS up to Eight Current Levels • Printers – Low MOSFET On-Resistance • Scanners – Selectable Slow or Mixed Decay Modes • Office Automation Machines • 8-V to 32-V Operating Supply Voltage Range • Gaming Machines • Internal Charge Pump for Gate Drive • Factory Automation • Built-in 3.3-V Reference • Robotics DESCRIPTION/ORDERING INFORMATION 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. A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step, half-step, quarter-step, or eighth step modes, and the selection of slow or mixed decay modes. Internal shutdown functions are provided for over current protection, short circuit protection, under voltage lockout and overtemperature. The DRV8821 is packaged in a 48-pin HTSSOP package (Eco-friendly : RoHS & no Sb/Br). ORDERING INFORMATION(1) TA PACKAGE(2) ORDERABLE PART NUMBER TOP-SIDE MARKING Reel of 2000 DRV8821DCAR –40°C to 85°C PowerPad™ (HTSSOP) - DCA DRV8821 Tube of 40 DRV8821DCA (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. (2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerPad, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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