ZHCSIW7B October 2018 – January 2020 TPS25982
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 器件比較表
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4 Fault Response
- 8.5 Device Functional Modes
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Application: Standby Power Rail Protection in Datacenter Servers
- 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)
- 9.2.2.6 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
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
9.2.2.7 Setting the Transient Overcurrent Blanking Interval (tITIMER)
For the design example under discussion, overcurrent transients are allowed for 2-ms duration. This blanking interval can be set by selecting appropriate capacitor CITIMER from ITIMER pin to ground. The value of CITIMER to set 2 ms for tITIMER can be calculated using Equation 26.
Equation 26. 
Choose closest available standard value: 4.7 nF, 10 %.