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DRV8825 Stepper Motor Controller IC
SLVSA73F
April 2010 – July 2014
DRV8825
PRODUCTION DATA.
CONTENTS
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DRV8825 Stepper Motor Controller IC
1
Features
2
Applications
3
Description
4
Simplified Schematic
5
Revision History
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
Handling Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
PWM Motor Drivers
8.3.2
Current Regulation
8.3.3
Decay Mode
8.3.4
Blanking Time
8.3.5
Microstepping Indexer
8.3.6
nRESET, nENBL, and nSLEEP Operation
8.3.7
Protection Circuits
8.3.7.1
Overcurrent Protection (OCP)
8.3.7.2
Thermal Shutdown (TSD)
8.3.7.3
Undervoltage Lockout (UVLO)
8.4
Device Functional Modes
8.4.1
STEP/DIR Interface
8.4.2
Microstepping
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Stepper Motor Speed
9.2.2.2
Current Regulation
9.2.2.3
Decay Modes
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Bulk Capacitance
10.2
Power Supply and Logic Sequencing
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Thermal Protection
11.3.1
Power Dissipation
11.3.2
Heatsinking
12
Device and Documentation Support
12.1
Trademarks
12.2
Electrostatic Discharge Caution
12.3
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
封装选项
机械数据 (封装 | 引脚)
PWP|28
MPDS373B
散热焊盘机械数据 (封装 | 引脚)
PWP|28
PPTD124Q
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