ZHCSJV7D July   2005  – June 2019 TPS40190

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化应用示意图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Dissipation Ratings
    3. 6.3 Recommended Operating Conditions
    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 Internally Fixed Parameters
      2. 7.3.2 Output Short Circuit Protection
      3. 7.3.3 Enable Functionality
      4. 7.3.4 5-V Regulator
      5. 7.3.5 Startup Sequence and Timing
      6. 7.3.6 Prebias Outputs
  8. 8 Application and Implementation
    1. 8.1 Typical Applications
  9. 9 器件和文档支持
    1. 9.1 文档支持
      1. 9.1.1 相关文档
    2. 9.2 接收文档更新通知
    3. 9.3 社区资源
    4. 9.4 商标
    5. 9.5 静电放电警告
    6. 9.6 Glossary
  10. 10机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DRC|10
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.1 Overview

The TPS40190 is a cost optimized controller providing all the necessary features to construct a high-performance DC-DC converter while keeping costs to a minimum. Support for pre-biased outputs eliminates concerns about damaging sensitive loads during start-up. Strong gate drivers for the high side and rectifier N-channel MOSFETs decrease switching losses for increased efficiency. Adaptive gate drive timing minimizes body diode conduction in the rectifier MOSFET, also increasing efficiency. Selectable short circuit protection thresholds and hiccup recovery from a short-circuit increase design flexibility and minimize power dissipation in the event of a prolonged output fault. A dedicated enable pin (ENABLE) allows the converter to be placed in a very low quiescent current shutdown mode.

Internally fixed switching frequency and soft-start time reduce external component count, simplifying design and layout, as well as reducing footprint and cost. The 3-mm × 3-mm package size also contributes to a reduced overall converter footprint.