ZHCSK61B August   2019  – December  2019 TPS66120 , TPS66121

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     功能表
      1.      TPS6612x 方框图
  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  Recommended Supply Load Capacitance
    5. 6.5  Thermal Information
    6. 6.6  PPHV Power Switch Characteristics
    7. 6.7  Power Path Supervisory
    8. 6.8  VBUS LDO Characteristics
    9. 6.9  Thermal Shutdown Characteristics
    10. 6.10 Input-output (I/O) Characteristics
    11. 6.11 Power Consumption Characteristics
    12. 6.12 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 20-V Sink (PPHV Power Path)
        1. 7.3.1.1 PPHV Soft Start
        2. 7.3.1.2 PPHV Reverse Current Protection (RCP)
      2. 7.3.2 Overtemperature Protection
      3. 7.3.3 VBUS Overvoltage Protection (OVP)
      4. 7.3.4 Power Management and Supervisory
        1. 7.3.4.1 Supply Connections
        2. 7.3.4.2 Power Up Sequences
          1. 7.3.4.2.1 Normal Power Up
          2. 7.3.4.2.2 Dead Battery Operation
    4. 7.4 Device Functional Modes
      1. 7.4.1 State Transitions
        1. 7.4.1.1 DISABLED State
        2. 7.4.1.2 SNK State
      2. 7.4.2 SNK FAULT State
      3. 7.4.3 Device Functional Mode Summary
      4. 7.4.4 Enabling the PPHV Sink Path
      5. 7.4.5 Faults
        1. 7.4.5.1 Fault Types
  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 External VLDO Capacitor (CVLDO)
        2. 8.2.2.2 PPHV, VBUS Power Path Capacitance
        3. 8.2.2.3 VBUS TVS Protection (Optional)
        4. 8.2.2.4 VBUS Schottky Diode Protection (Optional)
        5. 8.2.2.5 VBUS Overvoltage Protection (Optional)
        6. 8.2.2.6 Dead Battery Support
      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 相关链接
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  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)

6.7 Power Path Supervisory

Operating under these conditions unless otherwise noted: -10 ℃ ≤ TJ ≤ 125 ℃, 2.85V ≤ VVIN ≤ 5.5V, RIREF = 75 kΩ ±1% overall tolerance
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
UV_VIN_R Undervoltage threshold for VIN. VBUS LDO disables when threshold reached. VIN rising, TPS66120 only. 2.45 2.75 V
VIN rising, TPS66121 only. 3.89 4.40 V
UV_VIN_F Undervoltage threshold for VIN. Device resets. VIN falling, TPS66120 only. 2.35 2.65 V
VIN falling, TPS66121 only. 3.79 4.30 V
UVH_VIN Undervoltage hysteresis for VIN. 100 mV
UV_VBUS_R Undervoltage threshold for VBUS. PPHV switch disabled unitl threshold reached. VBUS rising 3.35 3.75 V
UV_VBUS_F Undervoltage threshold for VBUS. PPHV switch disables when threshold reached. VBUS falling 3.15 3.55 V
UVH_VBUS Undervoltage hysteresis for VBUS 200 mV
OVP_REF OVP reference voltage. 0.93 1 1.07 V
VFWD_DROP_VIN Forward voltage drop across
VIN to VLDO switch		 IVLDO = 35 mA 90 mV
tVIN_STABLE When VIN is above UV_VIN_R for this duration, VIN is considered valid. If device is being powered by VBUS LDO, it will then switch to VIN supply and VBUS LDO will be disabled. 5 15 ms