ZHCS557J February   2010  – December 2015 LM25066

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 说明 （续）
  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 Current Limit
      2. 8.3.2 Circuit Breaker
      3. 8.3.3 Power Limit
      4. 8.3.4 Undervoltage Lockout (UVLO)
      5. 8.3.5 Overvoltage Lockout (OVLO)
      6. 8.3.6 Power Good
      7. 8.3.7 VDD Sub-Regulator
      8. 8.3.8 Remote Temperature Sensing
      9. 8.3.9 Damaged MOSFET Detection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power Up Sequence
      2. 8.4.2 Gate Control
      3. 8.4.3 Fault Timer and Restart
      4. 8.4.4 Shutdown Control
      5. 8.4.5 Enabling/Disabling and Resetting
    5. 8.5 Register Maps
      1. 8.5.1 PMBus Command Support
        1. 8.5.1.1 Standard PMBus™ Commands
          1. 8.5.1.1.1  OPERATION (01h)
          2. 8.5.1.1.2  CLEAR_FAULTS (03h)
          3. 8.5.1.1.3  CAPABILITY (19h)
          4. 8.5.1.1.4  VOUT_UV_WARN_LIMIT (43h)
          5. 8.5.1.1.5  OT_FAULT_LIMIT (4Fh)
          6. 8.5.1.1.6  OT_WARN_LIMIT (51h)
          7. 8.5.1.1.7  VIN_OV_WARN_LIMIT (57h)
          8. 8.5.1.1.8  VIN_UV_WARN_LIMIT (58h)
          9. 8.5.1.1.9  STATUS_BYTE (78h)
          10. 8.5.1.1.10 STATUS_WORD (79h)
          11. 8.5.1.1.11 STATUS_VOUT (7Ah)
          12. 8.5.1.1.12 STATUS_INPUT (7Ch)
          13. 8.5.1.1.13 STATUS_TEMPERATURE (7Dh)
          14. 8.5.1.1.14 STATUS_CML (7Eh)
          15. 8.5.1.1.15 STATUS_MFR_SPECIFIC (80h)
          16. 8.5.1.1.16 READ_VIN (88h)
          17. 8.5.1.1.17 READ_VOUT (8Bh)
          18. 8.5.1.1.18 READ_TEMPERATURE_1 (8Dh)
          19. 8.5.1.1.19 MFR_ID (99h)
          20. 8.5.1.1.20 MFR_MODEL (9Ah)
          21. 8.5.1.1.21 MFR_REVISION (9Bh)
        2. 8.5.1.2 Manufacturer Specific PMBus™ Commands
          1. 8.5.1.2.1  MFR_SPECIFIC_00: READ_VAUX (D0h)
          2. 8.5.1.2.2  MFR_SPECIFIC_01: MFR_READ_IIN (D1h)
          3. 8.5.1.2.3  MFR_SPECIFIC_02: MFR_READ_PIN (D2h)
          4. 8.5.1.2.4  MFR_SPECIFIC_03: MFR_IN_OC_WARN_LIMIT (D3h)
          5. 8.5.1.2.5  MFR_SPECIFIC_04: MFR_PIN_OP_WARN_LIMIT (D4h)
          6. 8.5.1.2.6  MFR_SPECIFIC_05: READ_PIN_PEAK (D5h)
          7. 8.5.1.2.7  MFR_SPECIFIC_06: CLEAR_PIN_PEAK (D6h)
          8. 8.5.1.2.8  MFR_SPECIFIC_07: GATE_MASK (D7h)
          9. 8.5.1.2.9  MFR_SPECIFIC_08: ALERT_MASK (D8h)
          10. 8.5.1.2.10 MFR_SPECIFIC_09: DEVICE_SETUP (D9h)
          11. 8.5.1.2.11 MFR_SPECIFIC_10: BLOCK_READ (DAh)
          12. 8.5.1.2.12 MFR_SPECIFIC_11: SAMPLES_FOR_AVG (DBh)
          13. 8.5.1.2.13 MFR_SPECIFIC_12: READ_AVG_VIN (DCh)
          14. 8.5.1.2.14 MFR_SPECIFIC_13: READ_AVG_VOUT (DDh)
          15. 8.5.1.2.15 MFR_SPECIFIC_14: READ_AVG_IIN (DEh)
          16. 8.5.1.2.16 MFR_SPECIFIC_15: READ_AVG_PIN (DFh)
          17. 8.5.1.2.17 MFR_SPECIFIC_16: BLACK_BOX_READ (E0h)
          18. 8.5.1.2.18 MFR_SPECIFIC_17: READ_DIAGNOSTIC_WORD (E1h)
          19. 8.5.1.2.19 MFR_SPECIFIC_18: AVG_BLOCK_READ (E2h)
        3. 8.5.1.3 Reading and Writing Telemetry Data and Warning Thresholds
        4. 8.5.1.4 Determining Telemetry Coefficients Empirically With Linear Fit
        5. 8.5.1.5 Writing Telemetry Data
        6. 8.5.1.6 PMBus™ Address Lines (ADR0, ADR1, ADR2)
        7. 8.5.1.7 SMBA Response
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 12-V, 45-A PMBus Hotswap Design
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1  Select RSNS and CL Setting
          2. 9.2.1.2.2  Selecting the Hotswap FETs
          3. 9.2.1.2.3  Select Power Limit
          4. 9.2.1.2.4  Set Fault Timer
          5. 9.2.1.2.5  Check MOSFET SOA
          6. 9.2.1.2.6  Switching to dV/dt based Start-up
          7. 9.2.1.2.7  Choosing the VOUT Slew Rate
          8. 9.2.1.2.8  Select Power Limit and Fault Timer
          9. 9.2.1.2.9  Set Undervoltage and Overvoltage Threshold
            1. 9.2.1.2.9.1 Option A
            2. 9.2.1.2.9.2 Option B
            3. 9.2.1.2.9.3 Option C
            4. 9.2.1.2.9.4 Option D
          10. 9.2.1.2.10 Power Good Pin
          11. 9.2.1.2.11 Input and Output Protection
          12. 9.2.1.2.12 Final Schematic and Component Values
      2. 9.2.2 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 开发支持
    2. 12.2 社区资源
    3. 12.3 商标
    4. 12.4 静电放电警告
    5. 12.5 Glossary
  13. 13机械、封装和可订购信息

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

10 Power Supply Recommendations

In general, the LM25066 behavior is more reliable if it is supplied from a very regulated power supply. However, high-frequency transients on a backplane are not uncommon due to adjacent card insertions or faults. If this is expected in the end system, TI recommends to placing a 1-μF ceramic capacitor to ground close to the source of the hot swap MOSFET. This reduces the common mode seen by VIN and SENSE. Additional filtering may be necessary to avoid nuisance trips.

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