DRV8821_16 Datasheet, PDF (2/32 Pages) Texas Instruments – Dual Stepper Motor Controller and Driver

DRV8821
SLVS912J – JANUARY 2009 – REVISED JANUARY 2016
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements ................................................ 6
6.7 Dissipation Ratings ................................................... 6
6.8 Typical Characteristics .............................................. 7
7 Detailed Description .............................................. 9
7.1 Overview ................................................................... 9
7.2 Functional Block Diagram ....................................... 10
7.3 Feature Description................................................. 10
7.4 Device Functional Modes........................................ 14
8 Application and Implementation ........................ 16
8.1 Application Information............................................ 16
8.2 Typical Application ................................................. 16
9 Power Supply Recommendations...................... 19
9.1 Bulk Capacitance .................................................... 19
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Example .................................................... 21
10.3 Thermal Considerations ........................................ 22
11 Device and Documentation Support ................. 24
11.1 Documentation Support ....................................... 24
11.2 Community Resources.......................................... 24
11.3 Trademarks ........................................................... 24
11.4 Electrostatic Discharge Caution ............................ 24
11.5 Glossary ................................................................ 24
12 Mechanical, Packaging, and Orderable
Information ........................................................... 24
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision I (January 2014) to Revision J
Page
• Added Pin Functions table, ESD Ratings table, Thermal Information table, Detailed Description section, Application
and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation
Support section, and Mechanical, Packaging, and Orderable Information section................................................................ 1
Changes from Revision H (August 2013) to Revision I
Page
• Changed typo in Overcurrent Protection section ................................................................................................................. 14
2
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