JAJSGZ5A May   2012  – February 2019 TPS53014

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
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Recommended Operating Conditions
    3. 6.3 Thermal Information
    4. 6.4 Electrical Characteristics
    5. 6.5 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 PWM Operation
      2. 7.3.2 Auto-Skip Eco-Mode Control
      3. 7.3.3 Drivers
      4. 7.3.4 5-Volt Regulator
      5. 7.3.5 Soft Start and Pre-Biased Soft Start
      6. 7.3.6 Overcurrent Protection
      7. 7.3.7 Over/Undervoltage Protection
      8. 7.3.8 UVLO Protection
      9. 7.3.9 Thermal Shutdown
  8. 8 Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Detailed Design Procedure
        1. 8.1.1.1 Component Selection
          1. 8.1.1.1.1 Inductor
          2. 8.1.1.1.2 Output Capacitor
          3. 8.1.1.1.3 Input Capacitor
          4. 8.1.1.1.4 Bootstrap Capacitor
          5. 8.1.1.1.5 VREG5 Capacitor
          6. 8.1.1.1.6 Choose Output Voltage Resistors
  9. 9 Layout
    1. 9.1 Layout Guidelines
  10. 10デバイスおよびドキュメントのサポート
    1. 10.1 ドキュメントの更新通知を受け取る方法
    2. 10.2 コミュニティ・リソース
    3. 10.3 商標
    4. 10.4 静電気放電に関する注意事項
    5. 10.5 Glossary

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

7.3.7 Over/Undervoltage Protection

TPS53014 monitors a resistor divided feedback voltage to detect over and under voltage. If the feedback voltage is higher than 120% of the reference voltage, the OVP comparator output goes high and the circuit latches the high-side MOSFET driver OFF and the low-side MOSFET driver ON.

When the feedback voltage is lower than 68% of the reference voltage, the UVP comparator output goes high and an internal UVP delay counter begins counting. After 1ms, TPS53014 latches OFF both top and bottom MOSFET drivers. This function is enabled approximately 1.7 × Tss after power-on. The OVP and UVP latch off is reset when EN goes low.