JAJSIO9E March   2014  – June 2021 TPS25200

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Enable
      2. 8.3.2 Thermal Sense
      3. 8.3.3 Overcurrent Protection
      4. 8.3.4 FAULT Response
      5. 8.3.5 Output Discharge
    4. 8.4 Device Functional Modes
      1. 8.4.1 Undervoltage Lockout (UVLO)
      2. 8.4.2 Overcurrent Protection (OCP)
      3. 8.4.3 Overvoltage Clamp (OVC)
      4. 8.4.4 Overvoltage Lockout (OVLO)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Step by Step Design Produce
        2. 9.2.2.2 Input and Output Capacitance
        3. 9.2.2.3 Programming the Current-Limit Threshold
        4. 9.2.2.4 Design Above a Minimum Current Limit
        5. 9.2.2.5 Design Below a Maximum Current Limit
        6. 9.2.2.6 Power Dissipation and Junction Temperature
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 サポート・リソース
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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）
サーマルパッド・メカニカル・データ
発注情報

8.1 Overview

The TPS25200 is an intelligent low voltage switch or e-Fuse with robust overcurrent and overvoltage protection which are suitable for a variety of applications.

The TPS25200 current limited power switch uses N-channel MOSFETs in applications requiring up to 2.5 A of continuous load current. The device allows the user to program the current-limit threshold between 85 mA and 2.9 A (typical) via an external resistor. The device enters constant-current mode when the load exceeds the current-limit threshold.

The TPS25200 Input can withstand 20-V DC voltage, but clamps VOUT to a precision regulated 5.4 V and shuts down in the event VIN exceeds 7.6 V. The device also integrates overcurrent and short circuit protection. The precision overcurrent limit helps to minimize over design of the input power supply while the fast response short circuit protection isolates the load when a short circuit is detected.

The additional features include:

  • Enable the device can be put into a sleep mode for portable applications.
  • Overtemperature protection to safely shutdown in the event of an overcurrent event or a slight overvoltage event where the VOUT clamp is engaged over and extended period of time.
  • Deglitched fault reporting to filter the Fault signal to ensure the TPS25200 do not provide false fault alerts.
  • Output discharge pull-down to help ensue a load is in fact off and not in some undefined operational state.
  • Reverse blocking when disabled to prevent back-drive from an active load inadvertently causing undetermined behavior in the application.