SNOSDJ7A February   2025  – December 2025 LMG3650R025

PRODMIX  

  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 Switching Parameters
      1. 6.1.1 Turn-On Times
      2. 6.1.2 Turn-Off Times
      3. 6.1.3 Drain-Source Turn-On and Turn-off Slew Rate
      4. 6.1.4 Zero-Voltage Detection Times (LMG3656R025 only)
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
      1. 7.2.1 LMG3650R025 Functional Block Diagram
      2. 7.2.2 LMG3651R025 Functional Block Diagram
      3. 7.2.3 LMG3656R025 Functional Block Diagram
      4. 7.2.4 LMG3657R025 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Drive Strength Adjustment
      2. 7.3.2 GaN Power FET Switching Capability
      3. 7.3.3 VDD Supply
      4. 7.3.4 Overcurrent and Short-Circuit Protection
      5. 7.3.5 Overtemperature Protection
      6. 7.3.6 UVLO Protection
      7. 7.3.7 Fault Reporting
      8. 7.3.8 Auxiliary LDO (LMG3651R025 Only)
      9. 7.3.9 Zero-Voltage Detection (ZVD) (LMG3656R025 Only)
    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 Detailed Design Procedure
        1. 8.2.1.1 Slew Rate Selection
        2. 8.2.1.2 Signal Level-Shifting
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Using an Isolated Power Supply
      2. 8.3.2 Using a Bootstrap Diode
        1. 8.3.2.1 Diode Selection
        2. 8.3.2.2 Managing the Bootstrap Voltage
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Solder-Joint Reliability
        2. 8.4.1.2 Power-Loop Inductance
        3. 8.4.1.3 Signal-Ground Connection
        4. 8.4.1.4 Bypass Capacitors
        5. 8.4.1.5 Switch-Node Capacitance
        6. 8.4.1.6 Signal Integrity
        7. 8.4.1.7 High-Voltage Spacing
        8. 8.4.1.8 Thermal Recommendations
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1.     PACKAGE OPTION ADDENDUM
    2. 11.1 Tape and Reel Information
    3.     70

5.3 Recommended Operating Conditions

Unless otherwise noted: voltages are respect to GND/SRC
MIN NOM MAX UNIT
Supply voltage VDD 9 24 V
Input voltage IN 0 26 V
ID(cnts) Drain (DRN to SRC) continuous current, FET on. Tj = 25℃ -50 50 A
ID(cnts) Drain (DRN to SRC) continuous current, FET on. Tj = 150℃ -38 38 A
Positive source current LDO5V (LMG3651 only) 25 mA
RDRVon Resistance from external turn-on slew rate control resistor between FLT/RDRV to GND 29.4 open kΩ
RDRVoff Resistance and capacitance from external turn-off slew rate control series resistor and capacitor configuration between FLT/RDRV to GND 2 open kΩ
CDRVoff 0 1800 pF