SLVSEI3C
October 2018 – May 2020
TPS25982
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Simplified Schematics
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
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
Active Current Limiting
8.3.3.4
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: 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)
9.2.2.5.1
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
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RGE|24
MPQF124G
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND572A
Orderable Information
slvsei3c_oa
slvsei3c_pm
9.2.2
Detailed Design Procedure