SLVSHH5C August   2023  – May 2026 TPS25983

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 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 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 (UVLO and UVP)
      2. 7.3.2 Overvoltage Protection (OVP)
      3. 7.3.3 Inrush Current, Overcurrent, and Short-Circuit Protection
        1. 7.3.3.1 Slew Rate and Inrush Current Control (dVdt)
        2. 7.3.3.2 Circuit Breaker
        3. 7.3.3.3 Active Current Limiting
        4. 7.3.3.4 Short-Circuit Protection
      4. 7.3.4 Overtemperature Protection (OTP)
      5. 7.3.5 Analog Load Current Monitor (IMON)
      6. 7.3.6 Power Good (PG)
      7. 7.3.7 Reverse Current Blocking FET Driver
      8. 7.3.8 Fault Response
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application: Standby Power Rail Protection in Datacenter Servers
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Device Selection
        2. 8.2.2.2 Setting the Current Limit Threshold: RILIM Selection
        3. 8.2.2.3 Setting the Undervoltage and Overvoltage Lockout Set Point
        4. 8.2.2.4 Selecting the Current Monitoring Resistor: RIMON
        5. 8.2.2.5 Setting the Output Voltage Ramp Time (TdVdt)
          1. 8.2.2.5.1 Case 1: Start-Up Without Load: Only Output Capacitance COUT Draws Current
          2. 8.2.2.5.2 Case 2: Start-Up With Load: Output Capacitance COUT and Load Draw Current
        6. 8.2.2.6 Setting the Transient Overcurrent Blanking Interval (tITIMER)
        7. 8.2.2.7 Setting the Auto-Retry Delay and Number of Retries
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
      1. 8.3.1 Optical Module Power Rail Path Protection
        1. 8.3.1.1 Design Requirements
        2. 8.3.1.2 Device Selection
        3. 8.3.1.3 External Component Settings
        4. 8.3.1.4 Voltage Drop
        5. 8.3.1.5 Application Curves
      2. 8.3.2 Input Protection for 12V Rail Applications: PCIe Cards, Storage Interfaces, and DC Fans
      3. 8.3.3 Priority Power MUXing
    4. 8.4 Power Supply Recommendations
      1. 8.4.1 Transient Protection
      2. 8.4.2 Output Short-Circuit Measurements
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 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

6.8 Typical Characteristics

TPS25983 ON Resistance vs Temperature
A.
Figure 6-1 ON Resistance vs Temperature
TPS25983 OVLO Pin Threshold vs Temperature
Figure 6-3 OVLO Pin Threshold vs Temperature
TPS25983 EN/UVLO Falling Threshold for Lowest Current Consumption
A.
Figure 6-5 EN/UVLO Falling Threshold for Lowest Current Consumption
TPS25983 Shut-Down Current vs Temperature
VENUVLO = 1V, OUT = Open
Figure 6-7 Shut-Down Current vs Temperature
TPS25983 Recommended Maximum ILIM Setting For Safe Operation vs Input Voltage
Figure 6-9 Recommended Maximum ILIM Setting For Safe Operation vs Input Voltage
TPS25983 Output Current Limit (ILIM) Accuracy
Across Process, Voltage, Temperature Corners
Figure 6-11 Output Current Limit (ILIM) Accuracy
TPS25983 Fixed Fast-trip Threshold vs Temperature
Figure 6-13 Fixed Fast-trip Threshold vs Temperature
TPS25983 Power Good Output Voltage (De-asserted State) vs Temperature
VIN = 0V, IPG = 26μA
Figure 6-15 Power Good Output Voltage (De-asserted State) vs Temperature
TPS25983 ITIMER Discharge Current vs Temperature
Figure 6-17 ITIMER Discharge Current vs Temperature
TPS25983 Thermal Shutdown Plot - Steady State
Figure 6-19 Thermal Shutdown Plot - Steady State
TPS25983 Hotplug
CIN = 1μFCOUT = 220μFCdVdt = 3.3nF
Figure 6-21 Hotplug
TPS25983 Start Up With EN Into Resistive Load - dVdt Limited
COUT = 220μFCdVdt = 3.3nFROUT = 6Ω
Figure 6-23 Start Up With EN Into Resistive Load - dVdt Limited
TPS25983 Transient Overcurrent Blanking Timer Response
RILIM = 82ΩCITIMER = 4.7nF
Output load current ramped above the ILIM threshold for short duration without triggering current limit
Figure 6-25 Transient Overcurrent Blanking Timer Response
TPS25983 Steady-state Current Limit Followed By Thermal Shutdown And Auto-Retry (TPS259830L Variant)
RILIM = 82ΩCITIMER = 4.7nFCRETRY_DLY = 1nF, CNRETRY = Open
Figure 6-27 Steady-state Current Limit Followed By Thermal Shutdown And Auto-Retry (TPS259830L Variant)
TPS25983 Steady-state Circuit Breaker Response Followed By Auto-Retry (TPS259830O Variant)
RILIM = 82ΩCITIMER = 4.7nFCRETRY_DLY = Open, CNRETRY = Open
Figure 6-29 Steady-state Circuit Breaker Response Followed By Auto-Retry (TPS259830O Variant)
TPS25983 Output Hard Short-Circuit During Steady-state
RILIM = 82Ω
Figure 6-31 Output Hard Short-Circuit During Steady-state
TPS25983 Supply Line Transient Immunity - Input Voltage Step
RILIM = 82Ω
Figure 6-33 Supply Line Transient Immunity - Input Voltage Step
TPS25983 Supply UVP Threshold vs Temperature
A.
Figure 6-2 Supply UVP Threshold vs Temperature
TPS25983 EN/UVLO Pin Threshold vs Temperature
A.
Figure 6-4 EN/UVLO Pin Threshold vs Temperature
TPS25983 Quiescent Current vs Temperature
VENUVLO = 2V, OUT = Open
Figure 6-6 Quiescent Current vs Temperature
TPS25983 Deep Shut-Down Current vs Temperature
VENUVLO = 0V, OUT = Open
Figure 6-8 Deep Shut-Down Current vs Temperature
TPS25983 Output Current Limit (ILIM) vs RILIM
Figure 6-10 Output Current Limit (ILIM) vs RILIM
TPS25983 Output Current Monitor Gain (GIMON) Accuracy
Across Process, Voltage, Temperature Corners, Normalized to mean value of 243μA/A
Figure 6-12 Output Current Monitor Gain (GIMON) Accuracy
TPS25983 DVDT Pin Charging Current vs Temperature
VIN = 0V, IPG = 26μA
Figure 6-14 DVDT Pin Charging Current vs Temperature
TPS25983 ITIMER Voltage Threshold Delta vs Temperature
Figure 6-16 ITIMER Voltage Threshold Delta vs Temperature
TPS25983 ITIMER Internal Pull-up Voltage vs Temperature
Figure 6-18 ITIMER Internal Pull-up Voltage vs Temperature
TPS25983 Thermal Shutdown Plot - Inrush/Overload
Figure 6-20 Thermal Shutdown Plot - Inrush/Overload
TPS25983 Startup With EN - dVdt Limited
COUT = 220μFCdVdt = 10nFROUT = Open
Figure 6-22 Startup With EN - dVdt Limited
TPS25983 Overvoltage Protection
Figure 6-24 Overvoltage Protection
TPS25983 Steady-state Current Limit Response (TPS259830L Variant)
RILIM = 82Ω CITIMER = 4.7nF
Output load current ramped above the ILIM threshold beyond the ITIMER duration triggers current limit
Figure 6-26 Steady-state Current Limit Response (TPS259830L Variant)
TPS25983 Steady-state Circuit Breaker Response (TPS259830O Variant)
RILIM = 82ΩCITIMER = 4.7nF
Output load current ramped above the ILIM threshold beyond the ITIMER duration triggers circuit breaker response
Figure 6-28 Steady-state Circuit Breaker Response (TPS259830O Variant)
TPS25983 Power Up Into Output Short-Circuit
RILIM = 82Ω
Figure 6-30 Power Up Into Output Short-Circuit
TPS25983 Output Hard Short-Circuit During Steady-state (Zoomed In)
RILIM = 82Ω
Figure 6-32 Output Hard Short-Circuit During Steady-state (Zoomed In)