ZHCSQL7F
May 2010 – May 2022
DRV8312
,
DRV8332
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
Dissipation Ratings
6.6
Power Deratings (DRV8312)
6.7
Electrical Characteristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Error Reporting
7.3.2
Device Protection System
7.3.2.1
Bootstrap Capacitor Undervoltage Protection
7.3.2.1.1
Overcurrent (OC) Protection
7.3.2.2
Overtemperature Protection
7.3.2.3
Undervoltage Protection (UVP) and Power-On Reset (POR)
7.3.2.4
Device Reset
7.4
Device Functional Modes
7.4.1
Different Operational Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Three-Phase Operation
8.2.1.1
设计要求
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Motor Voltage
8.2.1.2.2
Current Requirement of 12 V Power Supply
8.2.1.2.3
Voltage of Decoupling Capacitor
8.2.1.2.4
Overcurrent Threshold
8.2.1.2.5
Sense Resistor
8.2.1.2.6
Output Inductor Selection
8.2.1.3
Application Curves
8.2.2
DRV8312 Application Diagram for Three-Phase Operation
8.2.3
Control Signal Logic With Conventional 6 PWM Input Scheme
8.2.4
Hall Sensor Control With 6 Steps Trapezoidal Scheme
8.2.5
Sensorless Control With 6 Steps Trapezoidal Scheme
9
Power Supply Recommendations
9.1
Bulk Capacitance
9.2
System Power-Up and Power-Down Sequence
9.2.1
Powering Up
9.2.2
Powering Down
9.3
System Design Recommendations
9.3.1
VREG Pin
9.3.2
VDD Pin
9.3.3
OTW Pin
9.3.4
FAULT Pin
9.3.5
OC_ADJ Pin
9.3.6
PWM_X and RESET_X Pins
9.3.7
Mode Select Pins
10
Layout
10.1
Layout Guidelines
10.1.1
PCB Material Recommendation
10.1.2
Ground Plane
10.1.3
Decoupling Capacitor
10.1.4
AGND
10.2
Layout Example
10.2.1
Current Shunt Resistor
10.2.1.1
66
10.3
Thermal Considerations
10.3.1
Thermal Via Design Recommendation
11
Device and Documentation Support
11.1
Related Links
11.2
Trademarks
11.3
静电放电警告
11.4
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DKD|36
MPDS126L
散热焊盘机械数据 (封装 | 引脚)
DKD|36
PPTD185D
订购信息
zhcsql7f_oa
zhcsql7f_pm
1
特性
带低 R
DS(on)
MOSFET(T
J
= 25°C 条件下为 80mΩ)的高效功率级(高达 97%)
运行电源电压高达 50V
(绝对最大值 70V)
DRV8312(电源焊盘朝下):高达 3.5A 的连续相电流(6.5A 峰值)
DRV8332(电源焊盘朝上):高达 8A 的连续相电流(13A 峰值)
三相半桥独立控制
PWM 运行频率高达 500kHz
片内集成欠压、过温、过载和短路保护功能
可编程逐周期电流限制保护
针对每个半桥的独立电源和接地引脚
智能栅极驱动和交叉导电预防
无需外部缓冲器或肖特基二极管