JAJSGC8B
October 2018 – January 2020
TPS25982
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
概略回路図
4
改訂履歴
5
デバイス比較表
6
概要 (続き)
7
Pin Configuration and Functions
Pin Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Timing Requirements
8.7
Switching Characteristics
8.8
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Undervoltage Protection (UVLO and UVP)
9.3.2
Overvoltage Protection (OVP)
9.3.3
Inrush Current, Overcurrent, and Short-Circuit Protection
9.3.3.1
Slew Rate and Inrush Current Control (dVdt)
9.3.3.2
Circuit Breaker
9.3.3.3
Active Current Limiting
9.3.3.4
Short-Circuit Protection
9.3.4
Overtemperature Protection (OTP)
9.3.5
Analog Load Current Monitor (IMON)
9.3.6
Power Good (PG)
9.3.7
Load Detect/Handshake (LDSTRT)
9.4
Fault Response
9.5
Device Functional Modes
10
Application and Implementation
10.1
Application Information
10.2
Typical Application: Standby Power Rail Protection in Datacenter Servers
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Device Selection
10.2.2.2
Setting the Current Limit Threshold: RILIM Selection
10.2.2.3
Setting the Undervoltage Lockout Set Point
10.2.2.4
Choosing the Current Monitoring Resistor: RIMON
10.2.2.5
Setting the Output Voltage Ramp Time (TdVdt)
10.2.2.5.1
Case 1: Start-Up Without Load: Only Output Capacitance COUT Draws Current
10.2.2.5.2
Case 2: Start-Up With Load: Output Capacitance COUT and Load Draw Current
10.2.2.6
Setting the Load Handshake (LDSTRT) Delay
10.2.2.7
Setting the Transient Overcurrent Blanking Interval (tITIMER)
10.2.2.8
Setting the Auto-Retry Delay and Number of Retries
10.2.3
Application Curves
10.3
System Examples
10.3.1
Optical Module Power Rail Path Protection
10.3.1.1
Design Requirements
10.3.1.2
Device Selection
10.3.1.3
External Component Settings
10.3.1.4
Voltage Drop
10.3.1.5
Application Curves
10.3.2
Input Protection for 12-V Rail Applications: PCIe Cards, Storage Interfaces and DC Fans
11
Power Supply Recommendations
11.1
Transient Protection
11.2
Output Short-Circuit Measurements
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
デバイスおよびドキュメントのサポート
13.1
ドキュメントのサポート
13.1.1
関連資料
13.1.1.1
関連リンク
13.2
ドキュメントの更新通知を受け取る方法
13.3
コミュニティ・リソース
13.4
商標
13.5
静電気放電に関する注意事項
13.6
Glossary
14
メカニカル、パッケージ、および注文情報
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
RGE|24
MPQF124G
サーマルパッド・メカニカル・データ
RGE|24
QFND572A
発注情報
jajsgc8b_oa
jajsgc8b_pm
10.2.2
Detailed Design Procedure