SLVS728D January   2007  – October 2019 TPS2412 , TPS2413

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Diagram
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Dissipation Ratings
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Definitions
      2. 8.3.2 TPS2412 vs TPS2413 – MOSFET Control Methods
      3. 8.3.3 N+1 Power Supply – Typical Connection
      4. 8.3.4 Input ORing – Typical Connection
      5. 8.3.5 System Design and Behavior With Transients
      6. 8.3.6 TPS2412 Regulation-Loop Stability
      7. 8.3.7 MOSFET Selection and R(RSET)
      8. 8.3.8 Gate Drive, Charge Pump and C(BYP)
    4. 8.4 Device Functional Modes
  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
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Recommended Operating Range
    2. 10.2 VDD, BYP, and Powering Options
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

8.3.4 Input ORing – Typical Connection

Figure 10 shows how redundant buses may be ORed to a common point to achieve higher reliability. It is possible to have both MOSFETs ON at once if the bus voltages are matched, or the combination of tolerance and regulation causes both TPS2412/13 circuits to see a forward voltage. The ORing MOSFET disconnects the lower-voltage bus, protecting the remaining bus from potential overload by a fault.

TPS2412 TPS2413 orng_bus_lvs727.gifFigure 10. Example ORing of Input Power Buses