JAJSM96
may 2023
DRV8849
PRODUCTION DATA
1
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Device Comparison
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Indexer Timing Requirements
7.7
Typical Operating Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Stepper Motor Driver Current Ratings
8.3.1.1
Peak Current Rating
8.3.1.2
RMS Current Rating
8.3.1.3
Full-Scale Current Rating
8.3.2
Microstepping Indexer
8.3.3
Controlling VREF with an MCU DAC
8.3.4
Current Regulation and Decay Modes
8.3.4.1
Smart tune Ripple Control
8.3.4.2
Smart tune Dynamic Decay
8.3.4.3
Blanking time
8.3.5
Charge Pump
8.3.6
Logic Level, tri-level and quad-level Pin Diagrams
8.3.7
nFAULT Pins
8.3.8
Protection Circuits
8.3.8.1
VM Undervoltage Lockout (UVLO)
8.3.8.2
VCP Undervoltage Lockout (CPUV)
8.3.8.3
Overcurrent Protection (OCP)
8.3.8.3.1
Latched Shutdown
8.3.8.3.2
Automatic Retry
8.3.8.4
Thermal Shutdown (OTSD)
8.3.8.4.1
Latched Shutdown
8.3.8.4.2
Automatic Retry
8.3.8.5
Fault Condition Summary
8.4
Device Functional Modes
8.4.1
Sleep Mode (nSLEEP = 0)
8.4.2
Disable Mode (nSLEEP = 1, ENABLE = 0)
8.4.3
Operating Mode (nSLEEP = 1, ENABLE = Hi-Z/1)
8.4.4
nSLEEP Reset Pulse
8.4.5
Functional Modes Summary
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
9.2.2.4
Application Curves
10
Layout
10.1
Layout Guidelines
10.2
Bulk Capacitance
11
デバイスおよびドキュメントのサポート
11.1
関連資料
12
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
RHH|36
MPQF144E
サーマルパッド・メカニカル・データ
発注情報
jajsm96_oa
7
Specifications