SLVSGG5C november   2021  – april 2023 TPS2597

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
  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. 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. 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

Typical Characteristics

GUID-20211220-SS0I-TNNQ-HTMJ-9M3ZPVLCNTLK-low.svgFigure 7-1 ON-Resistance vs Supply Voltage
GUID-20211220-SS0I-MCBK-RBZ9-TJ0T15L78KNX-low.svgFigure 7-3 IN Quiescent Current vs Temperature (TPS25972x Variant)
GUID-20211220-SS0I-CKM6-XHQV-MDV8QD3Z1DFK-low.svgFigure 7-5 IN Shutdown Current vs Temperature
GUID-20211220-SS0I-NRRX-4KR2-JKQXN2TGNKTT-low.svgFigure 7-7 EN/UVLO Rising Threshold vs Temperature
GUID-20211220-SS0I-307P-S54D-NNLWQKDK7TXQ-low.svgFigure 7-9 EN/UVLO Shutdown Falling Threshold vs Temperature
GUID-20211220-SS0I-03GD-QK9B-VNPFB6CFBCQ2-low.svgFigure 7-11 OVLO Falling Threshold vs Temperature (TPS25970x, TPS25974x Variants)
GUID-20211220-SS0I-9C1V-MFDT-CGQ604BHS0DZ-low.svgFigure 7-13 Overcurrent Threshold Accuracy (Across Process, Voltage and Temperature)
GUID-20211220-SS0I-ZPWS-8WRC-HGDC4JQZTXQW-low.svgFigure 7-15 Scalable Fast-Trip Threshold: Current Limit Threshold (ILIM) Ratio vs Temperature
GUID-20211220-SS0I-FDMR-L9CL-PR2TQHXP8TCB-low.svgFigure 7-17 OVC Clamping Voltage (OVCSEL = 390 kΩ to GND) vs Load Current (TPS25972x Variant)
GUID-20211220-SS0I-Z20F-XZGX-V0KFXQWVP8MM-low.svgFigure 7-19 OVC Clamping Voltage (OVCSEL = GND) vs Load Current (TPS25972x Variant)
GUID-20211220-SS0I-JHTK-GJ5C-F0MW6PTRMGNV-low.svgFigure 7-21 ITIMER Discharge Current vs Temperature
GUID-20211220-SS0I-VCJP-WWRM-ZSF61RG6TGLC-low.svgFigure 7-23 ITIMER internal Pullup Voltage vs Temperature
GUID-20211220-SS0I-PNLP-MQS6-6JDH4GTSXWC3-low.svgFigure 7-25 PGTH Threshold (Rising) vs Temperature (TPS25972x, TPS25974x Variants)
GUID-20211220-SS0I-S6JL-KC6N-NHCFT9MWD176-low.svgFigure 7-27 FLT Pin Pulldown Resistance vs Temperature
GUID-20211108-SS0I-4MRT-4ST3-5ZB1CH3H5J7L-low.svgFigure 7-29 Time to Thermal Shut-Down During Steady State
GUID-20211026-SS0I-34VX-PLCZ-TQCMGDBJQLGF-low.gif
VEN/UVLO = 2 V, COUT = 22 μF, CdVdt = Open, VIN ramped from 0 V → 12 V → 0 V
Figure 7-31 Power Up and Down With Input Supply
GUID-20211026-SS0I-HVGF-LTGP-1X4BMMDPPWBW-low.gif
VIN = 12 V, COUT = 470 μF, CdVdt = Open, VEN/UVLO stepped up to 3.3 V
Figure 7-33 Inrush Current Without Slew Rate Control – Capacitive Load
GUID-20211026-SS0I-MXXP-Q7WB-S8DF6ZV0RNXG-low.gif
VIN = 12 V, COUT = 470 μF, ROUT = 10 Ω, CdVdt = 5100 pF, VEN/UVLO stepped up to 3.3 V
Figure 7-35 Inrush Current With Slew Rate Control – Resistive and Capacitive Load
GUID-20211026-SS0I-4BCC-SBJQ-WZLQGH4JDJT4-low.gif
ROVCSEL = GND, COUT = 220 μF, IOUT = 200 mA, VIN ramped up from 3.3 V to 5.8 V
Figure 7-37 Overvoltage Clamp Response – TPS25972x
GUID-20211026-SS0I-XPFZ-FVFF-9JRBDRSKD3FZ-low.gif
ROVCSEL = 390 kΩ, COUT = 220 μF, IOUT = 200 mA, VIN ramped up from 12 V to 16.5 V
Figure 7-39 Overvoltage Clamp Response – TPS25972x
GUID-20211026-SS0I-HNBC-DSBZ-4GLNZJD0LXWX-low.gif
VIN = 12 V, CITIMER = 1.3 nF, COUT = 220 μF, RILM = 715 Ω, IOUT stepped from 0 A → 11 A
Figure 7-41 Active Current Limit Response Followed by TSD – TPS25970x
GUID-20211026-SS0I-GHKV-RXLP-SDMF0PG0F7RR-low.gif
VIN = 12 V, CITIMER = 1.3 nF, COUT = 470 μF, RILM = 715 Ω, IOUT stepped from 0 A → 11 A
Figure 7-43 Circuit-Breaker Response TPS25974x
GUID-20211026-SS0I-VNBG-CZNG-RKDKN40RCFT0-low.gif
VIN = 12 V, RILM = 715 Ω, OUT stepped from Open → Short-circuit to GND
Figure 7-45 Output Short-Circuit During Steady State (Zoomed In)
GUID-20211220-SS0I-9LWG-MGKN-KSHTMFWTXZNX-low.svgFigure 7-2 IN Quiescent Current vs Temperature (TPS25970x, TPS25974x Variants)
GUID-20211220-SS0I-XTVC-KVD7-G2KH82KPKF8P-low.svgFigure 7-4 IN OFF State (UVLO) Current vs Temperature
GUID-20211220-SS0I-STPD-TMP4-8WQRFRGQ8NDP-low.svgFigure 7-6 IN Undervoltage Threshold vs Temperature
GUID-20211220-SS0I-ZTCD-G722-B1QMWXKMGHPG-low.svgFigure 7-8 EN/UVLO Falling Threshold vs Temperature
GUID-20211220-SS0I-WGGM-P3VH-B3TMXSFGDTHL-low.svgFigure 7-10 OVLO Rising Threshold vs Temperature (TPS25970x, TPS25974x Variants)
GUID-20211220-SS0I-8SCC-7NPQ-W6SKZFXJN36H-low.svgFigure 7-12 Overcurrent Threshold vs ILM Resistor
GUID-20211220-SS0I-1JHC-M6ZJ-NMK4MC56CTDB-low.svgFigure 7-14 Analog Current Monitor Gain Accuracy
GUID-20211220-SS0I-9SLD-LKMV-RT72WWXKGT6R-low.svgFigure 7-16 OVC Threshold vs Temperature (TPS25972x Variant)
GUID-20211220-SS0I-848Z-RPSX-GBS4SBR4JMZR-low.svgFigure 7-18 OVC Clamping Voltage (OVCSEL = OPEN) vs Load Current (TPS25972x Variant)
GUID-20211220-SS0I-NTZK-7GCP-8J5FGK2XPJSQ-low.svgFigure 7-20 ITIMER Discharge Differential Voltage Threshold vs Temperature
GUID-20211220-SS0I-GMQM-W0VJ-T2FMJQGBHLCD-low.svgFigure 7-22 ITIMER Internal Pullup Resistance vs Temperature
GUID-20211220-SS0I-J9PT-NGPG-N1VMVFPZMP4L-low.svgFigure 7-24 DVDT Charging Current vs Temperature
GUID-20211220-SS0I-BFL7-K5HM-JV1F1JKNTWNC-low.svgFigure 7-26 PGTH Threshold (Falling) vs Temperature (TPS25972x, TPS25974x Variants)
GUID-20211108-SS0I-RVGJ-ZSJP-23TJZPKCZLZS-low.svgFigure 7-28 Time to Thermal Shut-Down During Inrush State
GUID-20211026-SS0I-4PC2-HXTT-QTSD62P3DNVJ-low.gif
VIN = 12 V, COUT = 22 μF, CdVdt = Open, VEN/UVLO ramped from 0 V → 1.4 V → 0 V
Figure 7-30 Power Up and Down With EN/UVLO Control
GUID-20211026-SS0I-XKKH-HDJK-B7DQ4FJLTB5H-low.gif
COUT = 22 μF, CdVdt = Open, EN/UVLO connected to IN through resistor ladder, 12 V hot-plugged to IN
Figure 7-32 Input Hot-Plug
GUID-20211026-SS0I-KHDR-LQXP-6PTNCHHXRXXX-low.gif
VIN = 12 V, COUT = 470 μF, CdVdt = 5100 pF, VEN/UVLO stepped up to 3.3 V
Figure 7-34 Inrush Current With Slew Rate Control – Capacitive Load
GUID-20211026-SS0I-TH7G-SHCF-LZ2WQG7BDRVL-low.gif
OV threshold set to 16.7 V, VIN ramped up from 12 V to 17 V
Figure 7-36 Overvoltage Lockout Response – TPS25970x and TPS25974x
GUID-20211026-SS0I-7HNQ-QL93-KJDJC9XX9PPQ-low.gif
ROVCSEL = Open, COUT = 220 μF, IOUT = 200 mA, VIN ramped up from 5 V to 7.5 V
Figure 7-38 Overvoltage Clamp Response – TPS25972x
GUID-20211026-SS0I-J6DJ-0C1S-6JT0PV5GLCVP-low.gif
VIN = 12 V, CITIMER = 1.3 nF, COUT = 220 μF, RILM = 715 Ω, IOUT stepped from 0 A → 11 A
Figure 7-40 Active Current Limit Response – TPS25970x
GUID-20211026-SS0I-0WDF-ZBJQ-LPBBXCCVZJRV-low.gif
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 7-42 Transient Overcurrent Blanking Timer Response
GUID-20211026-SS0I-6PPD-KG8N-B7BBGWRHVDHB-low.gif
VIN = 12 V, RILM = 715 Ω, OUT stepped from Open → Short-circuit to GND
Figure 7-44 Output Short-Circuit During Steady State
GUID-20211026-SS0I-4HK2-BFTF-KQS08ZBW7VL6-low.gif
VIN = 12 V, COUT = Open, OUT short-circuit to GND, RILM = 715 Ω, VEN/UVLO stepped from 0 V to 3.3 V
Figure 7-46 Power Up into Short-Circuit