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DRV8308 无刷直流电机控制器
ZHCSC39B
February 2014 – November 2017
DRV8308
PRODUCTION DATA.
CONTENTS
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DRV8308 无刷直流电机控制器
1
特性
2
应用
3
说明
4
修订历史记录
5
Pin Configurations and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
Handling Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
SPI Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Hall Comparators
7.3.2
FG Amplifier, Comparator, and FG Output
7.3.3
Enable, Reset, and Clock Generation
7.3.4
Commutation
7.3.4.1
120° 3-Hall Commutation
7.3.4.2
120° Single-Hall Commutation
7.3.4.3
180° Sine-Wave-Drive Commutation
7.3.5
Commutation Logic Block Diagram
7.3.6
Commutation Parameters
7.3.7
Braking
7.3.8
Output Pre-Drivers
7.3.9
Current Limit
7.3.10
Charge Pump
7.3.11
5-V Linear Regulator
7.3.12
Power Switch
7.3.13
Protection Circuits
7.3.13.1
VM Undervoltage Lockout (UVLO)
7.3.13.2
VM Overvoltage (VMOV)
7.3.13.3
Motor Overcurrent (OCP)
7.3.13.4
Charge Pump Failure (CPFAIL)
7.3.13.5
Charge Pump Short (CPSC)
7.3.13.6
Overtemperature (OTS)
7.4
Device Functional Modes
7.4.1
Modes of Speed Input
7.4.1.1
Clock Frequency Mode
7.4.1.2
Clock PWM and Internal Register PWM Modes
7.4.2
Auto Gain and Advance Compensation
7.4.3
External EEPROM Mode
7.5
Programming
7.5.1
Serial Interface
7.5.2
Serial Data Format
7.5.3
Programming the OTP Configuration Memory
7.6
Register Map
7.6.1
Control Registers
8
Application and Implementation
8.1
Application Information
8.1.1
Internal Speed Control Loop Constraints
8.1.2
Hall Sensor Configurations and Connections
8.1.3
FG Amplifier Configurations and Connections
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Motor voltage
8.2.2.2
Motor Current (Peak and RMS)
8.2.2.3
Speed Command Method
8.2.2.4
Required Flutter (Speed Jitter)
8.2.2.5
Configuration Method
8.2.2.6
Hall Element Current
8.2.2.7
Power FET Switching Time
8.2.3
Application Curves
8.3
Do's and Don'ts
8.3.1
RESET and ENABLE Considerations
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
器件和文档支持
11.1
文档支持
11.1.1
相关文档
11.2
接收文档更新通知
11.3
社区资源
11.4
商标
11.5
静电放电警告
11.6
Glossary
12
机械、封装和可订购信息
重要声明
封装选项
机械数据 (封装 | 引脚)
RHA|40
MPQF135D
散热焊盘机械数据 (封装 | 引脚)
RHA|40
QFND227K
订购信息
zhcsc39b_oa
zhcsc39b_pm
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