SLVSHR9 December   2024 TPS25984B

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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 Logic Interface
    7. 6.7 Timing Requirements
    8. 6.8 Switching Characteristics
    9. 6.9 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Undervoltage Protection
      2. 7.3.2  Insertion Delay
      3. 7.3.3  Overvoltage Protection
      4. 7.3.4  Inrush Current, Overcurrent, and Short-Circuit Protection
        1. 7.3.4.1 Slew Rate (dVdt) and Inrush Current Control
          1. 7.3.4.1.1 Start-Up Time Out
        2. 7.3.4.2 Steady-State Overcurrent Protection (Circuit-Breaker)
        3. 7.3.4.3 Active Current Limiting During Start-Up
        4. 7.3.4.4 Short-Circuit Protection
      5. 7.3.5  Analog Load Current Monitor (IMON)
      6. 7.3.6  Mode Selection (MODE)
      7. 7.3.7  Digital Overcurrent Indication (D_OC)
      8. 7.3.8  Stacking Multiple eFuses for Scalability
        1. 7.3.8.1 Current Balancing During Start-Up
      9. 7.3.9  Analog Junction Temperature Monitor (TEMP)
      10. 7.3.10 Overtemperature Protection
      11. 7.3.11 Fault Response and Indication (GOK/FLT)
      12. 7.3.12 Power-Good Indication (PG)
      13. 7.3.13 Output Discharge
      14. 7.3.14 FET Health Monitoring
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Single Device, Standalone Operation
      2. 8.1.2 Multiple Devices, Parallel Connection
      3. 8.1.3 Digital Telemetry Using External Microcontroller
    2. 8.2 Typical Application: 12V, 3.3kW Power Path Protection in Data Center Servers
      1. 8.2.1 Application
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
      4. 8.2.4 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Transient Protection
      2. 8.3.2 Output Short-Circuit Measurements
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

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

6.9 Typical Characteristics

TPS25984B ON Resistance vs Temperature
Figure 6-1 ON Resistance vs Temperature
TPS25984B VIN Overvoltage Protection vs Temperature
Figure 6-3 VIN Overvoltage Protection vs Temperature
TPS25984B EN/UVLO Based Thresholds for Device Shutdown vs Temperature
Figure 6-5 EN/UVLO Based Thresholds for Device Shutdown vs Temperature
TPS25984B ILIM Gain at different Load Currents vs Temperature
Figure 6-7 ILIM Gain at different Load Currents vs Temperature
TPS25984B DVDT Gain vs Temperature
Figure 6-9 DVDT Gain vs Temperature
TPS25984B QOD Sink Current vs Temperature
Figure 6-11 QOD Sink Current vs Temperature
TPS25984B Junction Temperature vs Load Current (TA = 25ºC, with Air-flow)
Figure 6-13 Junction Temperature vs Load Current (TA = 25ºC, with Air-flow)
TPS25984B Input Hot-Plug With Insertion Delay for B0/1/3 Variants
 
Figure 6-15 Input Hot-Plug With Insertion Delay for B0/1/3 Variants
TPS25984B Power-Up Control Using EN/UVLO Pin for B0/1/3 Variants
 
Figure 6-17 Power-Up Control Using EN/UVLO Pin for B0/1/3 Variants
TPS25984B Inrush Current Control With Capacitive Load
TPS25984B0 variant. COUT = 8mF, CDVDT = 33nF
Figure 6-19 Inrush Current Control With Capacitive Load
TPS25984B Input Overvoltage Protection Response Followed by Recovery
Input supply ramped up above VOVP(R) trigger OVP response and ramped down below VOVP(F).
Figure 6-21 Input Overvoltage Protection Response Followed by Recovery
TPS25984B Short-Circuit Protection Response
IOCP = 55A. Output hard short to GND while in steady-state. IOUT rises above 2×IOCP triggers fast-trip response.
Figure 6-23 Short-Circuit Protection Response
TPS25984B VIN Undervoltage Thresholds vs Temperature
Figure 6-2 VIN Undervoltage Thresholds vs Temperature
TPS25984B EN/UVLO Thresholds for FET turn-off vs Temperature
Figure 6-4 EN/UVLO Thresholds for FET turn-off vs Temperature
TPS25984B IREF Charging Current vs Temperature
Figure 6-6 IREF Charging Current vs Temperature
TPS25984B IMON Gain vs Temperature
Figure 6-8 IMON Gain vs Temperature
TPS25984B DVDT Charging Current vs Temperature
Figure 6-10 DVDT Charging Current vs Temperature
TPS25984B Junction Temperature vs Load Current ( No Air Flow)
Figure 6-12 Junction Temperature vs Load Current ( No Air Flow)
TPS25984B IOCP Accuracy vs Load Current
Figure 6-14 IOCP Accuracy vs Load Current
TPS25984B Power Up Control Using Input Supply
 
Figure 6-16 Power Up Control Using Input Supply
TPS25984B Power-Down Control Using EN/UVLO Pin
 
Figure 6-18 Power-Down Control Using EN/UVLO Pin
TPS25984B Input Overvoltage Protection Response
Input supply ramped up above VOVP(R).
Figure 6-20 Input Overvoltage Protection Response
TPS25984B Overcurrent Protection Response (Circuit-Breaker) for B0/1/2 Variants
IOCP = 55A. IOUT stays above IOCP threshold persistently to trigger circuit-breaker response for the B0/1/2 variants.
Figure 6-22 Overcurrent Protection Response (Circuit-Breaker) for B0/1/2 Variants
TPS25984B Power-Up Into Short-Circuit
Device turned on using EN/UVLO pin with output hard-short to GND. Device limits the current with foldback and then hits thermal shutdown.
Figure 6-24 Power-Up Into Short-Circuit