ZHCSFR0C May   2015  – February 2019 TPS7B68-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     典型应用原理图
  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 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 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 Device Enable (EN)
      2. 7.3.2 Adjustable Power-Good Threshold (PG, PGADJ)
      3. 7.3.3 Adjustable Power-Good Delay Timer (DELAY)
      4. 7.3.4 Undervoltage Shutdown
      5. 7.3.5 Current Limit
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Integrated Watchdog
        1. 7.3.7.1 Window Watchdog (WTS, ROSC, FSEL and WRS)
        2. 7.3.7.2 Standard Watchdog (WTS, ROSC and FSEL)
        3. 7.3.7.3 Watchdog Service Signal and Watchdog Fault Outputs (WD and WDO)
        4. 7.3.7.4 ROSC Status Detection (ROSC)
        5. 7.3.7.5 Watchdog Enable (PG and WD_EN)
        6. 7.3.7.6 Watchdog Initialization
        7. 7.3.7.7 Window Watchdog Operation (WTS = Low)
        8. 7.3.7.8 Standard Watchdog Operation (WTS = High)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation With Input Voltage Lower Than 4 V
      2. 7.4.2 Operation With Input Voltage Higher Than 4 V
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input Capacitor
        2. 8.2.2.2 Output Capacitor
        3. 8.2.2.3 Power-Good Threshold
        4. 8.2.2.4 Power-Good Delay Period
        5. 8.2.2.5 Watchdog Setup
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 文档支持
      1. 11.1.1 相关文档
    2. 11.2 接收文档更新通知
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 术语表
  12. 12机械、封装和可订购信息

封装选项

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

4 修订历史记录

Changes from B Revision (September 2017) to C Revision

  • Changed 通篇将看门狗精度从 9% 更改成了 10%Go
  • Changed 更改了器件信息表 表Go
  • Changed test conditions of VOUT parameterGo
  • Added second row to VOUT parameter Go
  • Changed V(dropout) parameter maximum specifications from 600 mV to 800 mV at 500 mA and changed 260 mV to 325 mV at 200 mAGo
  • Added footnote indicating dropout is not tested for the 3.3-V option at 200 mAGo
  • Changed first row test conditions of I(LIM) parameter: changed VIN = 5.6 V to 40 V to VIN = 5.6 V and added voltage optionGo
  • Added second row to I(LIM) parameter for the 3.3-V optionGo
  • Changed t(DEGLITCH) parameter minimum specification from 100 µs to 55 µs Go
  • Changed t(DLY_FIX) parameter specifications: deleted minimum specification and changed maximum specification from 550 µs to 900 µs Go
  • Changed t(WD_TOL) parameter: changes test conditions, changed minim specification from –9% to –10%, and changed maximum specification from 9% to 10%Go
  • Changed Several Typical Periods of Watchdog Window table to reflect change in watchdog duration accuracy from 9% to 10%Go

Changes from A Revision (December 2016) to B Revision

  • Changed V(PG_TH) symbol to V(PG_TH) rising and V(PGADJ_TH) symbol to V(PGADJ_TH) falling in Electrical Characteristics tableGo
  • Added V(PGADJ_HYST) parameter to Electrical Characteristics table Go
  • Changed Adjustable Power-Good Threshold section: updated symbols and changed Equation 1 Go
  • Changed parameter symbols in Power Up and Conditions for Activation of Power Good figure and added footnoteGo
  • Changed parameter symbols in Window Watchdog Operation figure and added footnoteGo
  • Changed parameter symbols in Standard Watchdog Operation figure and added footnoteGo

Changes from * Revision (June 2016) to A Revision

  • 已将 TPS7B6850-Q1 的状态从产品预览改为量产数据Go