ZHCSOF9B april   2022  – june 2023 TPS25981

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. Device Comparison Table
  7. Pin Configuration and Functions
  8. 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
      1.      16
    8. 7.8 Typical Characteristics
  9. 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 Inrush Current, Overcurrent, and Short-Circuit Protection
        1. 8.3.3.1 Slew Rate (dVdt) and Inrush Current Control
        2. 8.3.3.2 Circuit-Breaker During Steady-State
        3. 8.3.3.3 Active Current Limiting During Start-Up
        4. 8.3.3.4 Short-Circuit Protection
      4. 8.3.4 Analog Load Current Monitor
      5. 8.3.5 Overtemperature Protection (OTP)
      6. 8.3.6 Fault Response and Indication (FLT)
      7. 8.3.7 Power Good Indication (PG)
      8. 8.3.8 Quick Output Discharge (QOD)
      9. 8.3.9 Reverse Current Blocking FET Driver
    4. 8.4 Device Functional Modes
  10. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Single Device, Self-Controlled
      2. 9.1.2 Parallel Operation
    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 Output Voltage Rise Time (tR)
        3. 9.2.2.3 Setting Overcurrent Threshold (ILIM)
        4. 9.2.2.4 Setting Overcurrent Blanking Interval (tITIMER)
        5. 9.2.2.5 Voltage Drop
      3. 9.2.3 Application Curves
  11. 10Power Supply Recommendations
    1. 10.1 Transient Protection
    2. 10.2 Output Short-Circuit Measurements
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 静电放电警告
    6. 12.6 术语表
  14. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

Typical Characteristics

GUID-20220630-SS0I-CQ97-WV9C-KS3VWWTHC5P0-low.svgFigure 7-2 ON-Resistance vs Supply Voltage (TA = 25°C)
GUID-20220630-SS0I-CDFZ-0VSV-LKHF7MR0JSJJ-low.svgFigure 7-4 IN Quiescent Current vs Temperature
GUID-20220630-SS0I-H078-LPW5-3DTKRQZMSVHD-low.svgFigure 7-6 IN Shutdown Current vs Temperature
GUID-20220630-SS0I-3SWM-GZQK-4MDVMHX8RCPD-low.svgFigure 7-8 EN/UVLO Rising Threshold vs Temperature
GUID-20220630-SS0I-1LKP-SNRH-G8CF130RWG3H-low.svgFigure 7-10 EN/UVLO Shutdown Falling Threshold vs Temperature
GUID-20220630-SS0I-K5BQ-4FKB-1WDWH7TMSWNQ-low.svgFigure 7-12 OVLO Falling Threshold vs Temperature
GUID-20220630-SS0I-RPCW-P9GV-TWKSH70N8VNL-low.svgFigure 7-14 Overcurrent Threshold Accuracy (Across Process, Voltage and Temperature)
GUID-20220630-SS0I-LTWR-ZCVC-SR4DFCJMJ8JM-low.svgFigure 7-16 Fixed Fast-Trip Threshold vs Temperature
GUID-20220630-SS0I-DKXS-V6QM-W7H6QDJ1FQR8-low.svgFigure 7-18 ITIMER Discharge Differential Voltage Threshold vs Temperature
GUID-20220630-SS0I-PSW9-PXWZ-QQQF51LZPKZL-low.svgFigure 7-20 ITIMER Internal Pullup Voltage vs Temperature
GUID-20220630-SS0I-MLDL-NVN3-JMCB73Z7RMPP-low.svgFigure 7-22 PG Pin Voltage vs Temperature (VIN = 0 V)
GUID-20220630-SS0I-PFMQ-X20V-3HKXPLWWQNTT-low.svgFigure 7-24 FLT Pin Leakage Current vs Temperature
GUID-20211108-SS0I-RVGJ-ZSJP-23TJZPKCZLZS-low.svgFigure 7-26 Time to Thermal Shutdown During Inrush State
GUID-20220405-SS0I-VK6J-CJMG-59QTSLRF4NVL-low.gif
VIN = 12 V, COUT = 10 μF, CdVdt = Open, VEN/UVLO stepped up to 3.3 V
Figure 7-28 Start-Up with Enable
GUID-20220405-SS0I-PSN7-LSXN-BCVLBL0TM4RK-low.gif
COUT = 220 μF, CdVdt = 15 nF, EN/UVLO connected to IN through resistor ladder, 12 V hot-plugged to IN
Figure 7-30 Input Hot-Plug
GUID-20220405-SS0I-Q7D5-1MJT-920WSZGRH4NC-low.gif
VIN = 12 V, COUT = 220 μF, ROUT = 5 Ω, CdVdt = 3300 pF, VEN/UVLO stepped up to 1.4 V
Figure 7-32 Inrush Current with Resistive and Capacitive Load
GUID-20220405-SS0I-ZB6T-N0KX-DCXPCH2RTZJP-low.gif
VIN = 12 V, CITIMER = 1.5 nF, RILM = 649 Ω, IOUT ramped from 8 A → 14 A→ 8 A within 1 ms
Figure 7-34 Transient Overcurrent Blanking Timer Response
GUID-20220405-SS0I-WBGB-2MJS-ZVZBCSZ4RTZD-low.gif
VIN = 12 V, RILM = 649 Ω, OUT stepped from Open → Short-circuit to GND
Figure 7-36 Output Short-Circuit During Steady-State
GUID-20220405-SS0I-WFNV-WHMD-D2NVBKJKTPFC-low.gif
VIN = 12 V, OUT short-circuit to GND, RILM = 649 Ω, VEN/UVLO stepped from 0 V to 3.3 V
Figure 7-38 Power Up into Short Circuit
GUID-20220630-SS0I-KMZF-QB1D-VKQH4Z815RKG-low.svgFigure 7-3 ON-Resistance vs Temperature (IOUT = 3 A)
GUID-20220630-SS0I-55ZM-XRBZ-90HBHLSLGHQJ-low.svgFigure 7-5 IN OFF State (UVLO) Current vs Temperature
GUID-20220630-SS0I-RH5R-KBT8-GMCB6BZNKFRF-low.svgFigure 7-7 IN Undervoltage Threshold vs Temperature
GUID-20220630-SS0I-V8TT-MQ6G-VGR3DJXFL3HR-low.svgFigure 7-9 EN/UVLO Falling Threshold vs Temperature
GUID-20220630-SS0I-3KMR-BZ8L-ZMS6JRFBZM1T-low.svgFigure 7-11 OVLO Rising Threshold vs Temperature
GUID-20220630-SS0I-BXCF-LW3R-CBXWKQT1BR3H-low.svgFigure 7-13 Overcurrent Threshold vs ILM Resistor
GUID-20220630-SS0I-N4GH-JCNZ-CDWD1Q0Z8XRM-low.svgFigure 7-15 Scalable Fast-Trip Threshold: Current Limit Threshold (ILIM) Ratio vs Temperature
GUID-20220630-SS0I-7FJ4-0NLZ-WJHZMDBHNVTS-low.svgFigure 7-17 Analog Current Monitor Gain Accuracy
GUID-20220630-SS0I-HVTN-ZVQF-S5GH5BZGX3DR-low.svgFigure 7-19 ITIMER Discharge Current vs Temperature
GUID-20220630-SS0I-0L53-C6MT-HGBRGJDPVH52-low.svgFigure 7-21 DVDT Charging Current vs Temperature
GUID-20220630-SS0I-ZSM8-TF9J-PTL6TX92Q7K6-low.svgFigure 7-23 FLT Pin Pulldown Resistance vs Temperature
GUID-20220630-SS0I-LN3G-F5ZW-JHMJPPCCVMGG-low.svgFigure 7-25 Quick Output Discharge Resistance vs Temperature
GUID-20220630-SS0I-C173-RSNM-HTS9QCQ8BXVS-low.svgFigure 7-27 Time to Thermal Shutdown During Steady-State
GUID-20220405-SS0I-0FGM-HNSP-TCDWCVMPKJGS-low.gif
VEN/UVLO = 3.3 V, COUT = 10 μF, CdVdt = Open, VIN ramped up to 12 V
Figure 7-29 Start-Up with Supply
GUID-20220405-SS0I-CDTP-G6Q0-MXFMBS8DDTKB-low.gif
VIN = 12 V, COUT = 220 μF, CdVdt = 3300 pF, VEN/UVLO stepped up to 1.4 V
Figure 7-31 Inrush Current with Capacitive Load
GUID-20220405-SS0I-8BFR-HXXH-ND8HWC4MBXKB-low.gif
VIN Overvoltage threshold set to 13.6 V using resistor ladder connected to OVLO pin, VIN ramped up from 12 V to 16 V
Figure 7-33 Overvoltage Lockout Response
GUID-20220405-SS0I-80MR-T1VK-R7ZWXLDLNJBK-low.gif
VIN = 12 V, CITIMER = 1.5 nF, RILM = 649 Ω, IOUT ramped from 4 A → 13 A
Figure 7-35 Circuit-Breaker Response
GUID-20220405-SS0I-FQ61-VKCJ-NP49L2C3XW86-low.gif
VIN = 12 V, RILM = 649 Ω, OUT stepped from Open → Short-circuit to GND
Figure 7-37 Output Short-Circuit During Steady-State (Zoomed In)