JAJSEL2D
January 2018 – December 2019
TPS25221
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
Device Images
概略回路図
4
改訂履歴
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
Typical Characteristics
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Over-current Conditions
9.3.2
Fault Response
9.3.3
Undervoltage Lockout (UVLO)
9.3.4
Enable, (EN)
9.3.5
Thermal Sense
9.4
Device Functional Modes
9.5
Programming
9.5.1
Programming the Current-Limit Threshold
10
Application and Implementation
10.1
Application Information
10.1.1
Constant-Current
10.2
Typical Applications
10.2.1
Two-Level Current-Limit Circuit
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedures
10.2.1.2.1
Designing Above a Minimum Current Limit
10.2.1.2.2
Designing Below a Maximum Current Limit
10.2.1.2.3
Accounting for Resistor Tolerance
10.2.1.2.4
Input and Output Capacitance
10.2.1.3
Application Curve
10.2.2
Auto-Retry Functionality
10.2.2.1
Design Requirements (added)
10.2.2.2
Detailed Design Procedure
10.2.3
Typical Application as USB Power Switch
10.2.3.1
Design Requirements
10.2.3.1.1
USB Power-Distribution Requirements
10.2.3.2
Detailed Design Procedure
10.2.3.2.1
Universal Serial Bus (USB) Power-Distribution Requirements
11
Power Supply Recommendations
11.1
Self-Powered and Bus-Powered Hubs
11.2
Low-Power Bus-Powered and High-Power Bus-Powered Functions
11.3
Power Dissipation and Junction Temperature
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
デバイス・サポート
13.1.1
デベロッパー・ネットワークの製品に関する免責事項
13.2
ドキュメントのサポート
13.2.1
関連資料
13.3
ドキュメントの更新通知を受け取る方法
13.4
コミュニティ・リソース
13.5
商標
13.6
静電気放電に関する注意事項
13.7
Glossary
14
メカニカル、パッケージ、および注文情報
11
Power Supply Recommendations