ZHCSP18A November   2021  – June 2022 TPS22953-Q1 , TPS22954-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3.     Recommended Operating Conditions
    4. 7.3  Thermal Information
    5. 7.4  Electrical Characteristics
    6. 7.5  Electrical Characteristics – VBIAS = 5 V
    7. 7.6  Electrical Characteristics – VBIAS = 3.3 V
    8. 7.7  Electrical Characteristics – VBIAS = 2.5 V
    9. 7.8  Switching Characteristics – CT = 1000 pF
    10. 7.9  Switching Characteristics – CT = 0 pF
    11. 7.10 Typical DC Characteristics
    12. 7.11 Typical Switching Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  On and Off Control (EN Pin)
      2. 9.3.2  Voltage Monitoring (SNS Pin)
      3. 9.3.3  Power Good (PG Pin)
      4. 9.3.4  Supervisor Fault Detection and Automatic Restart
      5. 9.3.5  Manual Restart
      6. 9.3.6  Thermal Shutdown
      7. 9.3.7  Reverse Current Blocking (TPS22953-Q1 Only)
      8. 9.3.8  Quick Output Discharge (QOD) (TPS22954-Q1 Only)
      9. 9.3.9  VIN and VBIAS Voltage Range
      10. 9.3.10 Adjustable Rise Time (CT Pin)
      11. 9.3.11 Power Sequencing
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Input to Output Voltage Drop
      2. 10.1.2 Thermal Considerations
      3. 10.1.3 Automatic Power Sequencing
      4. 10.1.4 Monitoring a Downstream Voltage
      5. 10.1.5 Monitoring the Input Voltage
      6. 10.1.6 Break-Before-Make Power MUX (TPS22953-Q1 Only)
      7. 10.1.7 Make-Before-Break Power MUX (TPS22953-Q1 Only)
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Inrush Current
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 接收文档更新通知
    3. 13.3 支持资源
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 术语表
  14. 14Mechanical, Packaging, and Orderable Information

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7.4 Electrical Characteristics

Unless otherwise noted, the specification in the following table applies over the operating ambient temperature –40 °C ≤ TA ≤ +125 °C and the recommended VBIAS voltage range of 2.5 V to 5.7 V. Typical values are for TA = 25°C.
PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT
VEN VIH, Rising threshold VIN = 0.7V to VBIAS –40°C to +125°C 650 700 750 mV
VIL, Falling threshold VIN = 0.7V to VBIAS –40°C to +125°C 560 600 640 mV
VSNS VIH, Rising threshold VIN = 0.7V to VBIAS –40°C to +125°C 465 515 565 mV
VIL, Falling threshold VIN = 0.7V to VBIAS –40°C to +125°C 410 455 500 mV
tBLANK Blanking time for EN and SNS EN or SNS rising –40°C to +125°C 100 µs
tDEGLITCH Deglitch time for EN and SNS EN or SNS falling –40°C to +125°C 5 µs
tDIS Output discharge time (TPS22954 only) CL = 100µF –40°C to +125°C 10 ms
tRESTART Output restart time SNS falling –40°C to +125°C 2 ms
tRCB Response time for reverse current blocking (TPS22953 only) VOUT = VBIAS
EN falling		 –40°C to +125°C 10 µs
TSD Thermal shutdown Junction temperature rising - 130 150 170 °C
TSDHYS Thermal shutdown hysteresis Junction temperature falling - 20 °C
IRCB,IN Input reverse blocking current (TPS22953 only) VOUT = 5V, VIN = VEN = 0V,
VBIAS = 0V to 5.7V		 25°C 0.01 2 mΩ
–40°C to +85°C 5 mΩ
–40°C to +125°C 11 mΩ
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