SLUSFB8B September   2023  – May 2025 LMG3626

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 GaN Power FET Switching Parameters
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 GaN Power FET Switching Capability
      2. 7.3.2 Turn-On Slew-Rate Control
      3. 7.3.3 Current-Sense Emulation
      4. 7.3.4 Input Control Pins (EN, IN)
      5. 7.3.5 AUX Supply Pin
        1. 7.3.5.1 AUX Power-On Reset
        2. 7.3.5.2 AUX Under-Voltage Lockout (UVLO)
      6. 7.3.6 Overcurrent Protection
      7. 7.3.7 Overtemperature Protection
      8. 7.3.8 Fault Reporting
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Turn-On Slew-Rate Design
        2. 8.2.2.2 Current-Sense Design
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Solder-Joint Stress Relief
        2. 8.4.1.2 Signal-Ground Connection
        3. 8.4.1.3 CS Pin Signal
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1.     PACKAGE OPTION ADDENDUM
    2. 11.1 Mechanical Data

8.3 Power Supply Recommendations

The LMG3626 operates from one input supply connected to the AUX pin. The LMG3626 supports operation from the same supply the power supply controller manages and uses. The wide recommended AUX voltage range from 10V to 26V overlaps common-controller supply-pin turn-on and UVLO voltage limits.

The AUX external capacitance is recommended to be a ceramic capacitor that is at least 0.03μF over operating conditions.