SLVSE57C June   2017  – April 2018 TPS2595

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      TPS25953x Overvoltage Clamp Response Time
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Switching Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Protection (UVP) and Undervoltage Lockout (UVLO)
      2. 8.3.2 Overvoltage Protection
        1. 8.3.2.1 Overvoltage Lockout (OVLO)
        2. 8.3.2.2 Overvoltage Clamp (OVC)
      3. 8.3.3 Inrush Current, Overcurrent and Short Circuit Protection
        1. 8.3.3.1 Slew Rate and Inrush Current Control (dVdt)
        2. 8.3.3.2 Active Current Limiting
        3. 8.3.3.3 Short Circuit Protection
      4. 8.3.4 Overtemperature Protection (OTP)
      5. 8.3.5 Fault Indication (FLT )
      6. 8.3.6 Quick Output Discharge (QOD)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Fault Pin Functional Mode 1: Single Device, Self-Controlled
      2. 8.4.2 Enable and Fault Pin Functional Mode 2: Single Device, Host-Controlled
      3. 8.4.3 Enable and Fault Pin Functional Mode 2: Multiple Devices, Self-Controlled
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Programming the Current-Limit Threshold: RILM Selection
        2. 9.2.2.2 Undervoltage Lockout Set Point
        3. 9.2.2.3 Setting Output Voltage Ramp Time (TdVdT)
          1. 9.2.2.3.1 Case 1: Start-Up Without Load. Only Output Capacitance COUT Draws Current
          2. 9.2.2.3.2 Case 2: Start-Up With Load. Output Capacitance COUT and Load Draw Current
      3. 9.2.3 Support Component Selection: CIN
      4. 9.2.4 Application Curves
      5. 9.2.5 Controlled Power Down (Quick Output Discharge) using TPS2595x5
      6. 9.2.6 Overvoltage Lockout using TPS259573
  10. 10Power Supply Recommendations
    1. 10.1 Transient Protection
    2. 10.2 Output Short-Circuit Measurements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
      2. 12.1.2 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.3.4 Overtemperature Protection (OTP)

Thermal shutdown occurs when the junction temperature TJ exceeds TSD. When the TPS2595x0 detects a thermal overload, it shuts down and remains latched off until the device is re-enabled or power cycled. When the TPS2595x1, TPS2595x3, TPS2595x5 devices detects a thermal overload, it remains off until the TJ decreases by TSDHYS and then waits for an additional delay of tTSD,RST after which it automatically retries to turn on if it is still enabled. See Table 1.

Table 1. TPS2595xx Thermal Shutdown

Device Enter TSD Exit TSD
TPS2595x0 (Latch-off) TJ ≥ TSD TJ< TSD and Device Power Cycled or re-enabled using EN/UVLO pin
TPS2595x1, TPS2595x3, TPS2595x5 (Auto-retry) TJ ≥ TSD TJ< TSD – TSDHYS and tTSD,RST Timer Expired