ZHCST55A September   2023  – November 2023 TPS22999

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics (VBIAS = 5.5 V)
    6. 5.6  Electrical Characteristics (VBIAS = 3.4 V)
    7. 5.7  Electrical Characteristics (VBIAS = 2.3 V)
    8. 5.8  Switching Characteristics
    9. 5.9  Timing Diagrams
    10. 5.10 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 ON and OFF Control
      2. 6.3.2 Regulated Inrush Current
      3. 6.3.3 Integrated Quick Output Discharge
      4. 6.3.4 Thermal Shutdown
      5. 6.3.5 Power-Good (PG) Signal
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.3.1 ON and OFF Control

The EN pin controls the state of the switch. The EN pin is compatible with standard GPIO logic threshold so the EN pin can be used in a wide variety of applications. When power is first applied to VIN, a Smart Pulldown is used to keep the EN pin from floating until the system sequencing is complete. After the EN pin is deliberately driven high (≥ VIH), the Smart Pulldown is disconnected to prevent unnecessary power loss. See the following table for when the EN Pin Smart Pulldown is active.

EN Pin Voltage

EN Pin Function

≤ VIL

Pulldown active

≥ VIH

No pulldown