SLVSGG5C november   2021  – april 2023 TPS2597

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 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 Lockout (UVLO and UVP)
      2. 8.3.2 Overvoltage Lockout (OVLO)
      3. 8.3.3 Overvoltage Clamp (OVC)
      4. 8.3.4 Inrush Current, Overcurrent, and Short Circuit Protection
        1. 8.3.4.1 Slew Rate (dVdt) and Inrush Current Control
        2. 8.3.4.2 Circuit-Breaker
        3. 8.3.4.3 Active Current Limiting
        4. 8.3.4.4 Short-Circuit Protection
      5. 8.3.5 Analog Load Current Monitor
      6. 8.3.6 Overtemperature Protection (OTP)
      7. 8.3.7 Fault Response and Indication (FLT)
      8. 8.3.8 Power-Good Indication (PG)
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Single Device, Self-Controlled
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Device Selection
        2. 9.2.2.2 Setting Undervoltage and Overvoltage Thresholds
        3. 9.2.2.3 Setting Output Voltage Rise Time (tR)
        4. 9.2.2.4 Setting Power-Good Assertion Threshold
        5. 9.2.2.5 Setting Overcurrent Threshold (ILIM)
        6. 9.2.2.6 Setting Overcurrent Blanking Interval (tITIMER)
      3. 9.2.3 Application Curves
    3. 9.3 Parallel Operation
    4. 9.4 Power Supply Recommendations
      1. 9.4.1 Transient Protection
      2. 9.4.2 Output Short-Circuit Measurements
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

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

7.5 Electrical Characteristics

(Test conditions unless otherwise noted) –40°C ≤ TJ ≤ 125°C, VIN = 12 V, OUT = Open, VEN/UVLO = 2 V, VOVLO = 0 V for TPS25970x/4x, OVCSEL = 390 kΩ to GND for TPS25972x, RILM = 715 Ω , dVdT = Open, ITIMER = Open, FLT = Open for TPS25970x, PGTH = Open for TPS25972x/4x, PG = Open for TPS25972x/4x. All voltages referenced to GND.
Test Parameter Description MIN TYP MAX UNITS
INPUT SUPPLY (IN)
IQ(ON) IN supply quiescent current (TPS25970x) 413 650 µA
IN supply quiescent current (TPS25972x)  407 650 µA
IN supply quiescent current (TPS25974x) 413 650 µA
IN supply quiescent current during OVC (TPS25972x) 429 650 µA
IQ(OFF) IN supply OFF state current (VSD(F) < VEN < VUVLO(F)) 67 131 µA
ISD IN supply shutdown current (VEN < VSD(F)) 2.3 25 µA
VUVP(R) IN supply UVP rising threshold 2.44 2.54 2.64 V
VUVP(F) IN supply UVP falling threshold 2.35 2.45 2.55 V
OUTPUT VOLTAGE CLAMP (OUT) - TPS25972x
VOVC Overvoltage Clamp threshold, OVCSEL = Shorted to GND 3.65 3.89 4.1 V
Overvoltage Clamp threshold, OVCSEL = Open 5.25 5.76 6.2 V
Overvoltage Clamp threshold, OVCSEL = 390 kΩ to GND 13.2 13.88 14.5 V
VCLAMP Output voltage during clamping, OVCSEL = Shorted to GND, IOUT = 10 mA 3.2 3.82 4.2 V
Output voltage during clamping, OVCSEL = Open, IOUT = 10 mA 5 5.68 6.12 V
Output voltage during clamping, OVCSEL = 390 kΩ to GND, IOUT = 10 mA 13 13.79 14.6 V
OUTPUT LOAD CURRENT MONITOR (ILM)
GIMON Analog load current monitor gain (IMON : IOUT), 1 A ≤ IOUT ≤ 7.7 A, IOUT < ILIM 98 105.5 114 µA/A
OVERCURRENT PROTECTION (OUT)
ILIM Overcurrent threshold, RILM = 6.65 KΩ 0.745 0.87 0.97 A
Overcurrent threshold, RILM = 3.32 KΩ 1.55 1.73 1.905 A
Overcurrent threshold, RILM = 1.65 KΩ 3.2 3.48 3.715 A
Overcurrent threshold, RILM = 750 Ω 7.03 7.67 8.15 A
ISPFLT Circuit-Breaker threshold, ILM pin open (Single point failure) 0.1 A
ISPFLT Circuit-Breaker threshold, ILM pin shorted to GND (Single point failure) 2 3.1 A
ISCGain Scalable fast-trip threshold (ISC) : ILIM ratio  170 201 240 %
VFB VOUT threshold to exit current limit foldback 1.55 1.88 2.23 V
ON RESISTANCE (IN - OUT)
RON 2.7 ≤ VIN ≤ 4 V, IOUT = 3 A, TJ = 25℃ 10 18.3 mΩ
4 < VIN ≤ 23 V, IOUT = 3 A, TJ = 25℃ 9.8 18.3 mΩ
ENABLE/UNDERVOLTAGE LOCKOUT (EN/UVLO)
VUVLO(R) EN/UVLO rising threshold 1.183 1.2 1.228 V
VUVLO(F) EN/UVLO falling threshold 1.076 1.1 1.12 V
VSD(F) EN/UVLO falling threshold for lowest shutdown current 0.45 0.75 0.95 V
IENLKG EN/UVLO pin leakage current -0.1 0.1 µA
OVERVOLTAGE LOCKOUT (OVLO) - TPS25970x/4x
VOV(R) OVLO rising threshold 1.183 1.2 1.228 V
VOV(F) OVLO falling threshold 1.076 1.1 1.12 V
IOVLKG OVLO pin leakage current (0.5 V < VOVLO < 1.5 V) -0.1 0.1 µA
OVERCURRENT FAULT TIMER (ITIMER)
IITIMER ITIMER pin internal discharge current, IOUT > ILIM 1.5 2 2.72 µA
RITIMER ITIMER pin internal pullup resistance 13.8 35 kΩ
VINT ITIMER pin internal pullup voltage 2.1 2.57 2.74 V
VITIMER(F) ITIMER comparator threshold, IOUT > ILIM 0.609 1.05 1.37 V
ΔVITIMER ITIMER discharge differential voltage threshold, IOUT > ILIM 1.286 1.52 1.741 V
POWER GOOD INDICATION (PG) - TPS25972x/4x
VPGD PG pin voltage while de-asserted. VIN < VUVP(F), VEN < VSD(F), Weak pull-up (IPG = 26 μA) 663 1000 mV
PG pin voltage while de-asserted. VIN < VUVP(F), VEN < VSD(F), Strong pull-up (IPG = 242 μA) 782 1000 mV
PG pin voltage while de-asserted, VIN > VUVP(R) 0 600 mV
IPGLKG PG pin leakage current, PG asserted 3 µA
POWERGOOD THRESHOLD (PGTH)
VPGTH(R) PGTH rising threshold 1.178 1.2 1.23 V
VPGTH(F) PGTH falling threshold 1.071 1.1 1.13 V
IPGTHLKG PGTH pin leakage current -1 1 µA
FAULT INDICATION (FLTB) - TPS25970x
IFLTLKG FLT pin leakage current -1 1 µA
RFLTB FLT pin internal pull-down resistance 12.4 Ω
OVERTEMPERATURE PROTECTION (OTP)
TSD Thermal Shutdown rising threshold, TJ↑ 154 °C
TSDHYS Thermal Shutdown hysteresis, TJ↓ 10 °C
DVDT
IdVdt dVdt pin internal charging current 1.4 3.4 5.7 µA