ZHCSOF8D November   2021  – May 2025 TPS2597

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  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 Lockout (UVLO and UVP)
      2. 7.3.2 Overvoltage Lockout (OVLO)
      3. 7.3.3 Overvoltage Clamp (OVC)
      4. 7.3.4 Inrush Current, Overcurrent, and Short Circuit Protection
        1. 7.3.4.1 Slew Rate (dVdt) and Inrush Current Control
        2. 7.3.4.2 Circuit-Breaker
        3. 7.3.4.3 Active Current Limiting
        4. 7.3.4.4 Short-Circuit Protection
      5. 7.3.5 Analog Load Current Monitor
      6. 7.3.6 Overtemperature Protection (OTP)
      7. 7.3.7 Fault Response and Indication (FLT)
      8. 7.3.8 Power-Good Indication (PG)
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Single Device, Self-Controlled
    2. 8.2 Typical Application
      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 Undervoltage and Overvoltage Thresholds
        3. 8.2.2.3 Setting Output Voltage Rise Time (tR)
        4. 8.2.2.4 Setting Power-Good Assertion Threshold
        5. 8.2.2.5 Setting Overcurrent Threshold (ILIM)
        6. 8.2.2.6 Setting Overcurrent Blanking Interval (tITIMER)
      3. 8.2.3 Application Curves
    3. 8.3 Parallel Operation
    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 Device Support
      1. 9.1.1 第三方产品免责声明
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

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6.8 Typical Characteristics

TPS2597 ON-Resistance vs Supply VoltageFigure 6-1 ON-Resistance vs Supply Voltage
TPS2597 IN Quiescent Current vs Temperature (TPS25972x Variant)Figure 6-3 IN Quiescent Current vs Temperature (TPS25972x Variant)
TPS2597 IN Shutdown Current vs TemperatureFigure 6-5 IN Shutdown Current vs Temperature
TPS2597 EN/UVLO Rising Threshold vs TemperatureFigure 6-7 EN/UVLO Rising Threshold vs Temperature
TPS2597 EN/UVLO Shutdown Falling Threshold vs TemperatureFigure 6-9 EN/UVLO Shutdown Falling Threshold vs Temperature
TPS2597 OVLO Falling Threshold vs Temperature (TPS25970x, TPS25974x Variants)Figure 6-11 OVLO Falling Threshold vs Temperature (TPS25970x, TPS25974x Variants)
TPS2597 Overcurrent Threshold Accuracy (Across Process, Voltage and Temperature)Figure 6-13 Overcurrent Threshold Accuracy (Across Process, Voltage and Temperature)
TPS2597 Scalable Fast-Trip Threshold: Current Limit Threshold (ILIM) Ratio vs TemperatureFigure 6-15 Scalable Fast-Trip Threshold: Current Limit Threshold (ILIM) Ratio vs Temperature
TPS2597 OVC Clamping Voltage (OVCSEL = 390 kΩ to GND) vs Load Current (TPS25972x Variant)Figure 6-17 OVC Clamping Voltage (OVCSEL = 390 kΩ to GND) vs Load Current (TPS25972x Variant)
TPS2597 OVC Clamping Voltage (OVCSEL = GND) vs Load Current (TPS25972x Variant)Figure 6-19 OVC Clamping Voltage (OVCSEL = GND) vs Load Current (TPS25972x Variant)
TPS2597 ITIMER Discharge Current vs TemperatureFigure 6-21 ITIMER Discharge Current vs Temperature
TPS2597 ITIMER internal Pullup Voltage vs TemperatureFigure 6-23 ITIMER internal Pullup Voltage vs Temperature
TPS2597 PGTH Threshold (Rising) vs Temperature (TPS25972x, TPS25974x Variants)Figure 6-25 PGTH Threshold (Rising) vs Temperature (TPS25972x, TPS25974x Variants)
TPS2597 FLT Pin Pulldown Resistance vs TemperatureFigure 6-27 FLT Pin Pulldown Resistance vs Temperature
TPS2597 Time to Thermal Shut-Down During Steady StateFigure 6-29 Time to Thermal Shut-Down During Steady State
TPS2597 Power Up and Down With Input Supply
VEN/UVLO = 2 V, COUT = 22 μF, CdVdt = Open, VIN ramped from 0 V → 12 V → 0 V
Figure 6-31 Power Up and Down With Input Supply
TPS2597 Inrush Current Without Slew Rate Control – Capacitive Load
VIN = 12 V, COUT = 470 μF, CdVdt = Open, VEN/UVLO stepped up to 3.3 V
Figure 6-33 Inrush Current Without Slew Rate Control – Capacitive Load
TPS2597 Inrush Current With Slew Rate Control – Resistive and Capacitive Load
VIN = 12 V, COUT = 470 μF, ROUT = 10 Ω, CdVdt = 5100 pF, VEN/UVLO stepped up to 3.3 V
Figure 6-35 Inrush Current With Slew Rate Control – Resistive and Capacitive Load
TPS2597 Overvoltage Clamp Response – TPS25972x
ROVCSEL = GND, COUT = 220 μF, IOUT = 200 mA, VIN ramped up from 3.3 V to 5.8 V
Figure 6-37 Overvoltage Clamp Response – TPS25972x
TPS2597 Overvoltage Clamp Response – TPS25972x
ROVCSEL = 390 kΩ, COUT = 220 μF, IOUT = 200 mA, VIN ramped up from 12 V to 16.5 V
Figure 6-39 Overvoltage Clamp Response – TPS25972x
TPS2597 Active Current Limit Response Followed by TSD – TPS25970x
VIN = 12 V, CITIMER = 1.3 nF, COUT = 220 μF, RILM = 715 Ω, IOUT stepped from 0 A → 11 A
Figure 6-41 Active Current Limit Response Followed by TSD – TPS25970x
TPS2597 Circuit-Breaker Response TPS25974x
VIN = 12 V, CITIMER = 1.3 nF, COUT = 470 μF, RILM = 715 Ω, IOUT stepped from 0 A → 11 A
Figure 6-43 Circuit-Breaker Response TPS25974x
TPS2597 Output Short-Circuit During Steady State (Zoomed In)
VIN = 12 V, RILM = 715 Ω, OUT stepped from Open → Short-circuit to GND
Figure 6-45 Output Short-Circuit During Steady State (Zoomed In)
TPS2597 IN Quiescent Current vs Temperature (TPS25970x, TPS25974x Variants)Figure 6-2 IN Quiescent Current vs Temperature (TPS25970x, TPS25974x Variants)
TPS2597 IN OFF State (UVLO) Current vs TemperatureFigure 6-4 IN OFF State (UVLO) Current vs Temperature
TPS2597 IN Undervoltage Threshold vs TemperatureFigure 6-6 IN Undervoltage Threshold vs Temperature
TPS2597 EN/UVLO Falling Threshold vs TemperatureFigure 6-8 EN/UVLO Falling Threshold vs Temperature
TPS2597 OVLO Rising Threshold vs Temperature (TPS25970x, TPS25974x Variants)Figure 6-10 OVLO Rising Threshold vs Temperature (TPS25970x, TPS25974x Variants)
TPS2597 Overcurrent Threshold vs ILM ResistorFigure 6-12 Overcurrent Threshold vs ILM Resistor
TPS2597 Analog Current Monitor Gain AccuracyFigure 6-14 Analog Current Monitor Gain Accuracy
TPS2597 OVC Threshold vs Temperature (TPS25972x Variant)Figure 6-16 OVC Threshold vs Temperature (TPS25972x Variant)
TPS2597 OVC Clamping Voltage (OVCSEL = OPEN) vs Load Current (TPS25972x Variant)Figure 6-18 OVC Clamping Voltage (OVCSEL = OPEN) vs Load Current (TPS25972x Variant)
TPS2597 ITIMER Discharge Differential Voltage Threshold vs TemperatureFigure 6-20 ITIMER Discharge Differential Voltage Threshold vs Temperature
TPS2597 ITIMER Internal Pullup Resistance vs TemperatureFigure 6-22 ITIMER Internal Pullup Resistance vs Temperature
TPS2597 DVDT Charging Current vs TemperatureFigure 6-24 DVDT Charging Current vs Temperature
TPS2597 PGTH Threshold (Falling) vs Temperature (TPS25972x, TPS25974x Variants)Figure 6-26 PGTH Threshold (Falling) vs Temperature (TPS25972x, TPS25974x Variants)
TPS2597 Time to Thermal Shut-Down During Inrush StateFigure 6-28 Time to Thermal Shut-Down During Inrush State
TPS2597 Power Up and Down With EN/UVLO Control
VIN = 12 V, COUT = 22 μF, CdVdt = Open, VEN/UVLO ramped from 0 V → 1.4 V → 0 V
Figure 6-30 Power Up and Down With EN/UVLO Control
TPS2597 Input Hot-Plug
COUT = 22 μF, CdVdt = Open, EN/UVLO connected to IN through resistor ladder, 12 V hot-plugged to IN
Figure 6-32 Input Hot-Plug
TPS2597 Inrush Current With Slew Rate Control – Capacitive Load
VIN = 12 V, COUT = 470 μF, CdVdt = 5100 pF, VEN/UVLO stepped up to 3.3 V
Figure 6-34 Inrush Current With Slew Rate Control – Capacitive Load
TPS2597 Overvoltage Lockout Response – TPS25970x and TPS25974x
OV threshold set to 16.7 V, VIN ramped up from 12 V to 17 V
Figure 6-36 Overvoltage Lockout Response – TPS25970x and TPS25974x
TPS2597 Overvoltage Clamp Response – TPS25972x
ROVCSEL = Open, COUT = 220 μF, IOUT = 200 mA, VIN ramped up from 5 V to 7.5 V
Figure 6-38 Overvoltage Clamp Response – TPS25972x
TPS2597 Active Current Limit Response – TPS25970x
VIN = 12 V, CITIMER = 1.3 nF, COUT = 220 μF, RILM = 715 Ω, IOUT stepped from 0 A → 11 A
Figure 6-40 Active Current Limit Response – TPS25970x
TPS2597 Transient Overcurrent Blanking Timer Response
VIN = 12 V, CITIMER = 120 pF, COUT = 470 μF, RILM = 715 Ω, IOUT ramped from 0 A → 8 A→ 4 A within 100 μs
Figure 6-42 Transient Overcurrent Blanking Timer Response
TPS2597 Output Short-Circuit During Steady State
VIN = 12 V, RILM = 715 Ω, OUT stepped from Open → Short-circuit to GND
Figure 6-44 Output Short-Circuit During Steady State
TPS2597 Power Up into Short-Circuit
VIN = 12 V, COUT = Open, OUT short-circuit to GND, RILM = 715 Ω, VEN/UVLO stepped from 0 V to 3.3 V
Figure 6-46 Power Up into Short-Circuit