SNVS950C April   2014  – July 2016 LM5066I

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 SMBus Communications Timing Requirements and Definitions
    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 UVLO
      5. 8.3.5 OVLO
      6. 8.3.6 Power Good Pin
      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 Programming
      1. 8.5.1 PMBus Command Support
      2. 8.5.2 Standard PMBus Commands
        1. 8.5.2.1  OPERATION (01h)
        2. 8.5.2.2  CLEAR_FAULTS (03h)
        3. 8.5.2.3  CAPABILITY (19h)
        4. 8.5.2.4  VOUT_UV_WARN_LIMIT (43h)
        5. 8.5.2.5  OT_FAULT_LIMIT (4Fh)
        6. 8.5.2.6  OT_WARN_LIMIT (51h)
        7. 8.5.2.7  VIN_OV_WARN_LIMIT (57h)
        8. 8.5.2.8  VIN_UV_WARN_LIMIT (58h)
        9. 8.5.2.9  STATUS_BYTE (78h)
        10. 8.5.2.10 STATUS_WORD (79h)
        11. 8.5.2.11 STATUS_VOUT (7Ah)
        12. 8.5.2.12 STATUS_INPUT (7Ch)
        13. 8.5.2.13 STATUS_TEMPERATURE (7dh)
        14. 8.5.2.14 STATUS_CML (7Eh)
        15. 8.5.2.15 STATUS_OTHER (7Fh)
        16. 8.5.2.16 STATUS_MFR_SPECIFIC (80h)
        17. 8.5.2.17 READ_EIN (86h)
        18. 8.5.2.18 READ_VIN (88h)
        19. 8.5.2.19 READ_IIN (89h)
        20. 8.5.2.20 READ_VOUT (8Bh)
        21. 8.5.2.21 READ_TEMPERATURE_1 (8Dh)
        22. 8.5.2.22 READ_PIN (97h)
        23. 8.5.2.23 MFR_ID (99h)
        24. 8.5.2.24 MFR_MODEL (9Ah)
        25. 8.5.2.25 MFR_REVISION (9Bh)
      3. 8.5.3 Manufacturer Specific PMBus Commands
        1. 8.5.3.1  MFR_SPECIFIC_00: READ_VAUX (D0h)
        2. 8.5.3.2  MFR_SPECIFIC_01: MFR_READ_IIN (D1h)
        3. 8.5.3.3  MFR_SPECIFIC_02: MFR_READ_PIN (D2h)
        4. 8.5.3.4  MFR_SPECIFIC_03: MFR_IN_OC_WARN_LIMIT (D3h)
        5. 8.5.3.5  MFR_SPECIFIC_04: MFR_PIN_OP_WARN_LIMIT (D4h)
        6. 8.5.3.6  MFR_SPECIFIC_05: READ_PIN_PEAK (D5h)
        7. 8.5.3.7  MFR_SPECIFIC_06: CLEAR_PIN_PEAK (D6h)
        8. 8.5.3.8  MFR_SPECIFIC_07: GATE_MASK (D7h)
        9. 8.5.3.9  MFR_SPECIFIC_08: ALERT_MASK (D8h)
        10. 8.5.3.10 MFR_SPECIFIC_09: DEVICE_SETUP (D9h)
        11. 8.5.3.11 MFR_SPECIFIC_10: BLOCK_READ (DAh)
        12. 8.5.3.12 MFR_SPECIFIC_11: SAMPLES_FOR_AVG (DBh)
        13. 8.5.3.13 MFR_SPECIFIC_12: READ_AVG_VIN (DCh)
        14. 8.5.3.14 MFR_SPECIFIC_13: READ_AVG_VOUT (DDh)
        15. 8.5.3.15 MFR_SPECIFIC_14: READ_AVG_IIN (DEh)
        16. 8.5.3.16 MFR_SPECIFIC_14: READ_AVG_PIN (DFh)
        17. 8.5.3.17 MFR_SPECIFIC_15: READ_AVG_PIN
        18. 8.5.3.18 MFR_SPECIFIC_16: BLACK_BOX_READ (E0h)
        19. 8.5.3.19 MFR_SPECIFIC_17: READ_DIAGNOSTIC_WORD (E1h)
        20. 8.5.3.20 MFR_SPECIFIC_18: AVG_BLOCK_READ (E2h)
      4. 8.5.4 Reading and Writing Telemetry Data and Warning Thresholds
      5. 8.5.5 Determining Telemetry Coefficients Empirically With Linear Fit
      6. 8.5.6 Writing Telemetry Data
      7. 8.5.7 PMBus Address Lines (ADR0, ADR1, ADR2)
      8. 8.5.8 SMBA Response
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 48-V, 10-A PMBus Hotswap Design
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design-In 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 Set UVLO and OVLO Thresholds
            1. 9.2.1.2.6.1 Option A
            2. 9.2.1.2.6.2 Option B
            3. 9.2.1.2.6.3 Option C
            4. 9.2.1.2.6.4 Option D
          7. 9.2.1.2.7 Power Good Pin
          8. 9.2.1.2.8 Input and Output Protection
          9. 9.2.1.2.9 Final Schematic and Component Values
        3. 9.2.1.3 Application Curves
      2. 9.2.2 48-V, 20-A PMBus Hotswap Design
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1  Selecting the Sense Resistor and CL Setting
          2. 9.2.2.2.2  Selecting the Hotswap FETs
          3. 9.2.2.2.3  Select Power Limit
          4. 9.2.2.2.4  Set Fault Timer
          5. 9.2.2.2.5  Check MOSFET SOA
          6. 9.2.2.2.6  Switching to dv/dt-Based Start-Up
          7. 9.2.2.2.7  Choosing the VOUT Slew Rate
          8. 9.2.2.2.8  Select Power Limit and Fault Timer
          9. 9.2.2.2.9  Chose Input and Output Protection and Set Undervoltage, Overvoltage, and Power Good Thresholds
          10. 9.2.2.2.10 Final Schematic and Component Values
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

12 Device and Documentation Support

12.1 Trademarks

PMBus is a trademark of SMIF, Inc.

12.2 Electrostatic Discharge Caution

esds-image

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

12.3 Glossary

SLYZ022 — TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.