JAJSJT9A October   2020  – December 2020 LM7310

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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.     14
    9. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Reverse Polarity Protection
      2. 7.3.2 Undervoltage Protection (UVLO & UVP)
      3. 7.3.3 Overvoltage Lockout (OVLO)
      4. 7.3.4 Inrush Current control and Fast-trip
        1. 7.3.4.1 Slew Rate (dVdt) and Inrush Current Control
        2. 7.3.4.2 Fast-Trip During Steady State
      5. 7.3.5 Analog Load Current Monitor Output
      6. 7.3.6 Reverse Current Protection
      7. 7.3.7 Overtemperature Protection (OTP)
      8. 7.3.8 Fault Response
      9. 7.3.9 Power Good Indication (PG)
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Single Device, Self-Controlled
      1. 8.2.1 Typical Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Setting Undervoltage and Overvoltage Thresholds
          2. 8.2.1.2.2 Setting Output Voltage Rise Time (tR)
          3. 8.2.1.2.3 Setting Power Good Assertion Threshold
          4. 8.2.1.2.4 Setting Analog Current Monitor Voltage (IMON) Range
        3. 8.2.1.3 Application Curves
    3. 8.3 Active ORing
    4. 8.4 Priority Power MUXing
    5. 8.5 USB PD Port Protection
    6. 8.6 Parallel Operation
  9. 9 Power Supply Recommendations
    1. 9.1 Transient Protection
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 ドキュメントの更新通知を受け取る方法
    3. 11.3 サポート・リソース
    4. 11.4 商標
    5. 11.5 静電気放電に関する注意事項
    6. 11.6 用語集
  12. 12Mechanical, Packaging, and Orderable Information

6.8 Typical Characteristics

GUID-20201207-CA0I-Q0HG-H8Z7-ZKBCTW524QLR-low.gifFigure 6-2 ON-Resistance vs Supply Voltage
Figure 6-4 IN Quiescent Current vs Supply Voltage
Figure 6-6 IN Undervoltage Threshold vs Temperature
GUID-20201207-CA0I-LV2L-B8DW-6G3LQJGG52B5-low.gifFigure 6-8 EN/UVLO Shutdown Threshold vs Temperature
GUID-20201207-CA0I-HGCM-CCQW-RGLSVRTG3MVZ-low.gifFigure 6-10 OVLO Threshold vs Temperature
Figure 6-12 Reverse Comparator Threshold vs Temperature
Figure 6-14 Forward Regulation Voltage vs Supply Voltage
GUID-20201207-CA0I-1XZR-5QKW-F71HV1XM1VKK-low.gifFigure 6-16 OUT Leakage Current During ON-State Reverse Current Blocking
GUID-20201209-CA0I-HCKN-J9BD-TH5DLV4FPB0T-low.gifFigure 6-18 Analog Current Monitor Gain Accuracy
Figure 6-20 Analog Current Monitor Gain vs Load Current
GUID-20201207-CA0I-DRGC-3BWG-SHGZ8J3RPPXS-low.gifFigure 6-22 Steady State Fast-Trip Comparator Threshold vs Temperature
Figure 6-24 Time to Thermal Shut-Down During Inrush State
GUID-20201207-CA0I-PTPQ-0PNJ-M99CBGCMJL12-low.png
VEN/UVLO = 3 V, COUT = 220 μF, CdVdt = 10 nF, VIN ramped up to 12 V
Figure 6-26 Start Up with IN Supply
GUID-20201207-CA0I-SJGJ-3QCV-VNQCWF3TMX6Z-low.png
COUT = 220 μF, CdVdt = 10 nF, EN/UVLO connected to IN through resistor ladder, 12 V hot-plugged to IN
Figure 6-28 Input Hot-Plug
GUID-20201208-CA0I-M1KD-2MF0-FVWTRXH9DHQH-low.png
COUT = 220 μF, PG pulled up to 3 V, -15 V hot-plugged to IN
Figure 6-30 Input Reverse Polarity Protection - Fast Ramp
GUID-20201207-CA0I-2CQ9-F7F8-NJMFC6KBZXHG-low.png
IN= Open, COUT = 220 μF, PG pulled up to 3 V, 20 V hot-plugged to OUT
Figure 6-32 Reverse Current Blocking Response in OFF State
GUID-20201207-CA0I-RZMX-36KR-G1JMBNPJMJSZ-low.png
COUT = 220 μF, ROUT = 20 Ω, OVLO threshold = 13.2 V, VIN ramped up from 12 V to 16 V
Figure 6-34 Input Overvoltage Protection
GUID-20201207-CA0I-43WX-H4QK-CBV9HNXNKBPV-low.png
VIN = 12 V, COUT = Open, OUT stepped from Open → Short-circuit to GND
Figure 6-36 Fast-Trip Response During Steady State - Zoomed In
Figure 6-3 Forward Voltage Drop vs Load Current
Figure 6-5 IN Quiescent Current vs Temperature
Figure 6-7 EN/UVLO Threshold vs Temperature
GUID-20201207-CA0I-2VLK-4G7X-FPPDHTVJGH3X-low.gifFigure 6-9 EN/UVLO Shutdown Threshold vs Supply Voltage
GUID-20201207-CA0I-HXTC-XBPK-CCZ8LWR7BDZS-low.gifFigure 6-11 PGTH Threshold vs Temperature
GUID-20201207-CA0I-VJ6Z-F1LS-JPGK4P68LQ51-low.gifFigure 6-13 Forward Regulation Voltage vs Temperature
Figure 6-15 Forward Comparator Threshold vs Temperature
Figure 6-17 Reverse Leakage Current During OFF-State
Figure 6-19 Analog Current Monitor gain vs Temperature
GUID-20201207-CA0I-Z3J7-FHZC-FGQN2XHQLRC7-low.gifFigure 6-21 DVDT Charging Current vs Temperature
Figure 6-23 Steady State Fast-Trip Current Threshold vs Temperature
Figure 6-25 Time to thermal Shut-Down During Steady State
GUID-20201207-CA0I-ZW2M-SJQB-TZ4BBX26HLP0-low.png
VIN = 12 V, COUT = 220 μF, CdVdt = 10 nF, VEN/UVLO stepped up to 3 V
Figure 6-27 Start Up with EN
GUID-20201207-CA0I-T0DB-M19D-K8BBH3TV1XF2-low.png
VIN = 12 V, ROUT = 20 Ω, COUT = 220 μF, CdVdt = 10 nF, VEN/UVLO stepped up to 3 V
Figure 6-29 Inrush Current with RC Load
GUID-20201208-CA0I-CPDZ-WH7C-GJV8DVJ0NKLQ-low.png
COUT = 220 μF, PG pulled up to 3 V, VIN ramped down from 0 V to -15 V and then ramped up to 0 V
Figure 6-31 Input Reverse Polarity Protection - Slow Ramp
GUID-20201207-CA0I-BQ4Z-PQM5-H8VNZSJBNC4T-low.png
IN= Open, COUT = 220 μF, PG pulled up to 3 V, VOUT ramped up from 0 V to 20 V
Figure 6-33 Reverse Current Blocking Response in OFF State
GUID-20201207-CA0I-8JBM-J47C-BQGL2G6XLWZC-low.png
VIN = 12 V, COUT = Open, OUT stepped from Open → Short-circuit to GND
Figure 6-35 Fast-Trip Response During Steady State