DRV8870_16 Datasheet, PDF (2/25 Pages) Texas Instruments – Brushed DC Motor Driver

DRV8870
SLVSCY8A – AUGUST 2015 – 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......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 8
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 11
8.1 Application Information............................................ 11
8.2 Typical Application .................................................. 11
9 Power Supply Recommendations...................... 14
9.1 Bulk Capacitance .................................................... 14
10 Layout................................................................... 15
10.1 Layout Guidelines ................................................. 15
10.2 Layout Example .................................................... 15
10.3 Thermal Considerations ........................................ 15
10.4 Power Dissipation ................................................. 15
11 Device and Documentation Support ................. 17
11.1 Documentation Support ........................................ 17
11.2 Community Resources.......................................... 17
11.3 Trademarks ........................................................... 17
11.4 Electrostatic Discharge Caution ............................ 17
11.5 Glossary ................................................................ 17
12 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (August 2015) to Revision A
Page
• Updated the ƒ_PWM max value and added a note .................................................................................................................... 4
• Removed the redundant T_A condition and added ƒ_PWM = 24 kHz .......................................................................................... 5
• Added more information to clarify how the max RMS current varies for different applications ........................................... 12
2
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