SNOSDL1A December   2024  – December 2025 LMG3650R035

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 (LMG3656R035 only)
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
      1. 7.2.1 LMG3650R035 Functional Block Diagram
      2. 7.2.2 LMG3651R035 Functional Block Diagram
      3. 7.2.3 LMG3656R035 Functional Block Diagram
      4. 7.2.4 LMG3657R035 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 (LMG3651R035 Only)
      9. 7.3.9 Zero-Voltage Detection (ZVD) (LMG3656R035 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

Package Options

Mechanical Data (Package|Pins)
  • KLA|9
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The LMG365xR035 GaN FET with integrated driver and protection is targeted at switch-mode power converters and enables designers to achieve new levels of power density and efficiency.

Adjustable gate driver strength allows the control of turn-on and maximum turn-off slew rates independently, which can be used to actively control EMI and optimize switching performance. Turn on slew rate varies from 10V/ns to 80V/ns, while the turn off slew rate can be limited from 10V/ns to a maximum based on the magnitude of load current. Protection features include under-voltage lockout (UVLO), cycle-by-cycle overcurrent limit, and short-circuit and overtemperature protection. The LMG3651R035 provides a 5V LDO output on LDO5V pin that powers external digital isolators. The LMG3656R035 includes the zero-voltage detection (ZVD) feature which provides a pulse output from the ZVD pin when zero-voltage switching is realized. The LMG3657R035 includes the zero-current detection (ZCD) feature that sets the ZCD pin high when the drain-to-source current is negative and transitions to low upon detecting the zero-crossing point.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
LMG365xR035 KLA (TOLL, 9) 9.8mm × 11.6mm
(1) For all available packages, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
Device Information
PART NUMBER LDO 5V OUTPUT ZERO-VOLTAGE DETECTION FEATURE ZERO-CURRENT DETECTION FEATURE
LMG3650R035 — — —
LMG3651R035(1) Yes — —
LMG3656R035(1) — Yes —
LMG3657R035(1) — — Yes
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