ZHCSQT3K
October 2009 – January 2022
DRV8824
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
PWM Motor Drivers
7.3.2
Current Regulation
7.3.3
Decay Mode
7.3.4
Blanking Time
7.3.5
Microstepping Indexer
7.3.6
nRESET, nENBL and nSLEEP Operation
7.3.7
Protection Circuits
7.3.7.1
Overcurrent Protection (OCP)
7.3.7.2
Thermal Shutdown (TSD)
7.3.7.3
Undervoltage Lockout (UVLO)
7.4
Device Functional Modes
7.4.1
STEP/DIR Interface
7.4.2
Microstepping
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Stepper Motor Speed
8.2.2.2
Current Regulation
8.2.2.3
Decay Modes
8.2.3
Application Curves
Power Supply Recommendations
9.1
Bulk Capacitance
9.2
Power Supply and Logic Sequencing
9
Layout
9.1
Layout Guidelines
9.2
Layout Example
9.3
Thermal Considerations
9.4
Power Dissipation
9.5
Heatsinking
10
Device and Documentation Support
10.1
Community Resources
10.2
Trademarks
11
Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
RHD|28
PWP|28
散热焊盘机械数据 (封装 | 引脚)
RHD|28
QFND050K
PWP|28
PPTD156O
订购信息
zhcsqt3k_oa
zhcsqt3k_pm
1
特性
PWM 微步进电机驱动器
内置微步进分度器
最高 1/32 微步进
多种衰减模式:
混合衰减
慢速衰减
快速衰减
8.2V 至 45V 宽工作电源电压范围
最大驱动电流为 1.6A(24V 且
T
A
= 25°C)
简单的 STEP/DIR 接口
低电流睡眠模式
内置 3.3V 基准输出
小型封装和外形尺寸
保护特性:
过流保护 (OCP)
热关断 (TSD)
VMx 欠压锁定 (UVLO)
故障条件指示引脚 (nFAULT)