JAJS232E November   2006  – October 2019 TPS2410 , TPS2411

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーションの図
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Device Comparison
  7. 7 Pin Configuration and Functions
    1.     Pin Functions, PW
    2.     Pin Functions, RMS
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics: TPS2410, 11
    6. 8.6 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Device Pins
        1. 9.3.1.1  A, C:
        2. 9.3.1.2  BYP:
        3. 9.3.1.3  FLTR:
        4. 9.3.1.4  FLTB:
        5. 9.3.1.5  GATE:
        6. 9.3.1.6  GND:
        7. 9.3.1.7  RSET:
        8. 9.3.1.8  RSVD:
        9. 9.3.1.9  STAT
        10. 9.3.1.10 UV, OV, PG:
        11. 9.3.1.11 VDD:
      2. 9.3.2 Gate Drive, Charge Pump and C(BYP)
      3. 9.3.3 Fast Comparator Input Filtering – C(FLTR)
      4. 9.3.4 UV, OV, and PG
      5. 9.3.5 Input ORing and Stat
    4. 9.4 Device Functional Modes
      1. 9.4.1 TPS2410 vs TPS2411 – MOSFET Control Methods
  10. 10Application and Implementation
    1. 10.1 Typical Connections
      1. 10.1.1 N+1 Power Supply
      2. 10.1.2 Input ORing
    2. 10.2 Typical Application Examples
      1. 10.2.1 VDD, BYP, and Powering Options
      2. 10.2.2 Bidirectional Blocking and Protection of C
      3. 10.2.3 ORing Examples
      4. 10.2.4 Design Requirements
        1. 10.2.4.1 MOSFET Selection and R(RSET)
        2. 10.2.4.2 TPS2410 Regulation-loop Stability
      5. 10.2.5 Detailed Design Procedure
      6. 10.2.6 Application Curves
  11. 11Power Supply Recommendations
    1. 11.1 Recommended Operating Range
    2. 11.2 System Design and Behavior with Transients
  12. 12Layout
    1. 12.1 Layout Considerations
    2. 12.2 Layout Example
  13. 13デバイスおよびドキュメントのサポート
    1. 13.1 デバイス・サポート
    2. 13.2 関連リンク
    3. 13.3 ドキュメントの更新通知を受け取る方法
    4. 13.4 コミュニティ・リソース
    5. 13.5 商標
    6. 13.6 静電気放電に関する注意事項
    7. 13.7 Glossary
  14. 14メカニカル、パッケージ、および注文情報

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

10.2.2 Bidirectional Blocking and Protection of C

The TPS2410 and TPS2411 may be used in applications where bidirectional blocking is desired. This may occur in situations where two different voltages are ORed together, and operation from the lower voltage is desired. Another important application allows isolation of a redundant unit that is generating too high an output voltage. There are two considerations, first is the selection of the VDD source, and second is protection of the C pin from excessive current. Figure 13 provides an example of this type of application.

VDD needs to have voltage applied when A is to be connected to the load. Connecting VDD to C only works when voltage on C is always present before A is connected. VDD may be connected to A, a separate supply, or have voltage from A ORed with voltage from C. OV may be used to force GATE low, even when V(A) is greater than V(C), by driving OV to a voltage between 0.6 V and less than 5.25 V.

The C pin must be protected from excessive current if V(A) can exceed V(C) by more than 5.5 V. With a single MOSFET, V(C) is never more than a diode drop lower than V(A). When V(AC) is greater than a diode drop, a small current flows out of the C pin into the load. If V(AC) exceeds 5.5 V, a current limiting circuit should be used to protect C. Figure 13 provides an example circuit. Inserting this protection circuit creates a small offset in the forward regulation and threshold voltage.

TPS2410 TPS2411 block_exmp_lvs727.gifFigure 13. Bidirectional Blocking Example