ZHCSL90
August 2020
TPS25980
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
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
Timing Requirements
7.7
Switching Characteristics
7.8
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Undervoltage Protection (UVLO and UVP)
8.3.2
Overvoltage Protection (OVP)
8.3.3
Inrush Current, Overcurrent, and Short-Circuit Protection
8.3.3.1
Slew Rate and Inrush Current Control (dVdt)
8.3.3.2
Circuit Breaker
8.3.3.3
Short-Circuit Protection
8.3.4
Overtemperature Protection (OTP)
8.3.5
Analog Load Current Monitor (IMON)
8.3.6
Power Good (PG)
8.3.7
Load Detect/Handshake (LDSTRT)
8.4
Fault Response
8.5
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application: Patient Monitoring System in Medical Applications
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Device Selection
9.2.2.2
Setting the Current Limit Threshold: RILIM Selection
9.2.2.3
Setting the Undervoltage Lockout Set Point
9.2.2.4
Choosing the Current Monitoring Resistor: RIMON
9.2.2.5
Setting the Output Voltage Ramp Time (TdVdt)
9.2.2.5.1
Case 1: Start-Up Without Load: Only Output Capacitance COUT Draws Current
9.2.2.5.2
Case 2: Start-Up With Load: Output Capacitance COUT and Load Draw Current
9.2.2.6
Setting the Load Handshake (LDSTRT) Delay
9.2.2.7
Setting the Transient Overcurrent Blanking Interval (tITIMER)
9.2.2.8
Setting the Auto-Retry Delay and Number of Retries
9.2.3
Application Curves
9.3
System Examples
9.3.1
Optical Module Power Rail Path Protection
9.3.1.1
Design Requirements
9.3.1.2
Device Selection
9.3.1.3
External Component Settings
9.3.1.4
Voltage Drop
9.3.1.5
Application Curves
9.3.2
Input Protection for 12-V Rail Applications: PCIe Cards, Storage Interfaces and DC Fans
10
Power Supply Recommendations
10.1
Transient Protection
10.2
Output Short-Circuit Measurements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.1.1.1
Related Links
12.2
Receiving Notification of Documentation Updates
12.3
支持资源
12.4
Trademarks
12.5
静电放电警告
12.6
术语表
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RGE|24
MPQF124G
散热焊盘机械数据 (封装 | 引脚)
RGE|24
QFND572A
订购信息
zhcsl90_oa
12.5
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。