ZHCSSZ6F
august 2008 – june 2020
TPS40210-Q1
,
TPS40211-Q1
PRODUCTION DATA
1
1
特性
2
应用
3
说明
5
4
Revision History
5
Pin Configuration and Functions
Pin 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
Switching Characteristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Minimum On-Time and Off-Time Considerations
7.3.2
Current Sense and Overcurrent
7.3.3
Current Sense and Subharmonic Instability
7.3.4
Current Sense Filtering
7.3.5
Soft Start
7.3.6
BP Regulator
7.3.7
Shutdown (DIS/ EN Pin)
7.3.8
Control Loop Considerations
7.3.9
Gate Drive Circuit
7.3.10
TPS40211-Q1
7.4
Device Functional Modes
7.4.1
Setting the Oscillator Frequency
7.4.2
Synchronizing the Oscillator
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
Duty Cycle Estimation
8.2.2.2
Inductor Selection
8.2.2.3
Rectifier Diode Selection
8.2.2.4
Output Capacitor Selection
8.2.2.5
Input Capacitor Selection
8.2.2.6
Current Sense and Current Limit
8.2.2.7
Current Sense Filter
8.2.2.8
Switching MOSFET Selection
8.2.2.9
Feedback Divider Resistors
8.2.2.10
Error Amplifier Compensation
8.2.2.11
R-C Oscillator
8.2.2.12
Soft-Start Capacitor
8.2.2.13
Regulator Bypass
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
第三方产品免责声明
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Related Links
11.4
接收文档更新通知
11.5
支持资源
11.6
Trademarks
11.7
静电放电警告
11.8
术语表
12
Mechanical, Packaging, and Orderable Information
70
11.7
静电放电警告
静电放电 (ESD) 会损坏这个集成电路。德州仪器 (TI) 建议通过适当的预防措施处理所有集成电路。如果不遵守正确的处理和安装程序,可能会损坏集成电路。
ESD 的损坏小至导致微小的性能降级,大至整个器件故障。精密的集成电路可能更容易受到损坏,这是因为非常细微的参数更改都可能会导致器件与其发布的规格不相符。