TIDUEZ8 May   2021

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Insulation Monitoring
    2. 1.2 Isolation Capacitance
    3. 1.3 IEC 61557-8 Standard for Industrial Low-Voltage Distribution Systems
    4. 1.4 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Highlighted Products
      1. 2.2.1 TPSI2140
      2. 2.2.2 AMC3330
      3. 2.2.3 TPS7A24
      4. 2.2.4 REF2033
      5. 2.2.5 TLV6001
    3. 2.3 Design Considerations
      1. 2.3.1 Resistive Bridge
      2. 2.3.2 Isolated Analog Signal Chain
        1. 2.3.2.1 Differential to Single-Ended Conversion
        2. 2.3.2.2 High-Voltage Measurement
        3. 2.3.2.3 Signal Chain Error Analysis
      3. 2.3.3 PCB Layout Recommendations
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Connectors
      2. 3.1.2 Default Jumper Configuration
      3. 3.1.3 Prerequisites
    2. 3.2 Software Requirements
    3. 3.3 Test Setup
    4. 3.4 Test Results
  9. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Documentation Support
    3. 4.3 Support Resources
    4. 4.4 Trademarks
  10. 5About the Authors

TPS7A24

The TPS7A24 is an 18-V, low quiescent current, low-dropout (LDO) linear regulator. The low IQ performance makes the TPS7A24 an excellent choice for battery-powered or line-power applications that are expected to meet increasingly stringent standby-power standards. The fixed-output versions have the advantage of providing better accuracy with fewer external components, whereas the adjustable version has the flexibility for a far wider output voltage range.

The 2% accuracy overtemperature makes this device an excellent choice for meeting a wide range of microcontroller power requirements.

For increased reliability, the TPS7A24 also incorporates overcurrent, overshoot pulldown, and thermal shutdown protection. The operating junction temperature is –40°C to +125°C, which adds margin for applications concerned with higher working ambient temperatures.

GUID-BF8D40C4-2850-4E6F-A254-5DDC086B0AFB-low.gif Figure 2-4 TPS7A24 Functional Block Diagram