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LMG3426R050

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600V 50mΩ GaN FET with integrated driver, protection and zero-voltage detection

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Data sheet

LMG3426R050

ACTIVE
Data sheet Order now

Product details

VDS (max) (V) 600 RDS(on) (mΩ) 50 ID (max) (A) 44 Features Bottom-side cooled, Cycle-by-cycle overcurrent protection, Latched overcurrent protection, Overtemperature protection, PWM temperature reporting, Zero voltage detection Rating Catalog Operating temperature range (°C) -40 to 125
VDS (max) (V) 600 RDS(on) (mΩ) 50 ID (max) (A) 44 Features Bottom-side cooled, Cycle-by-cycle overcurrent protection, Latched overcurrent protection, Overtemperature protection, PWM temperature reporting, Zero voltage detection Rating Catalog Operating temperature range (°C) -40 to 125
VQFN (RQZ) 54 144 mm² 12 x 12
  • Qualified for JEDEC JEP180 for hard-switching topologies
  • 600V GaN-on-Si FET with integrated gate driver
    • Integrated high precision gate bias voltage
    • 200V/ns FET hold-off
    • 3.6MHz switching frequency
    • 20V/ns to 150V/ns slew rate for optimization of switching performance and EMI mitigation
    • Operates from 7.5V to 18V supply
  • Robust protection
    • Cycle-by-cycle overcurrent and latched short-circuit protection with < 100ns response
    • Withstands 720V surge while hard-switching
    • Self-protection from internal overtemperature and UVLO monitoring
  • Advanced power management
    • Digital temperature PWM output
    • LMG3426R050 includes zero-voltage detection (ZVD) feature that facilitates soft-switching converters
  • Qualified for JEDEC JEP180 for hard-switching topologies
  • 600V GaN-on-Si FET with integrated gate driver
    • Integrated high precision gate bias voltage
    • 200V/ns FET hold-off
    • 3.6MHz switching frequency
    • 20V/ns to 150V/ns slew rate for optimization of switching performance and EMI mitigation
    • Operates from 7.5V to 18V supply
  • Robust protection
    • Cycle-by-cycle overcurrent and latched short-circuit protection with < 100ns response
    • Withstands 720V surge while hard-switching
    • Self-protection from internal overtemperature and UVLO monitoring
  • Advanced power management
    • Digital temperature PWM output
    • LMG3426R050 includes zero-voltage detection (ZVD) feature that facilitates soft-switching converters

The LMG342xR050 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.

The LMG342xR050 integrates a silicon driver that enables switching speed up to 150V/ns. TI’s integrated precision gate bias results in higher switching SOA compared to discrete silicon gate drivers. This integration, combined with TI’s low-inductance package, delivers clean switching and minimal ringing in hard-switching power supply topologies. Adjustable gate drive strength allows control of the slew rate from 20V/ns to 150V/ns, which can be used to actively control EMI and optimize switching performance. The LMG3426R050 includes the zero-voltage detection (ZVD) feature which provides a pulse output from the ZVD pin when zero-voltage switching is realized.

Advanced power management features include digital temperature reporting and fault detection. The temperature of the GaN FET is reported through a variable duty cycle PWM output, which simplifies managing device loading. Faults reported include overcurrent, short-circuit, overtemperature, VDD UVLO, and high-impedance RDRV pin.

The LMG342xR050 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.

The LMG342xR050 integrates a silicon driver that enables switching speed up to 150V/ns. TI’s integrated precision gate bias results in higher switching SOA compared to discrete silicon gate drivers. This integration, combined with TI’s low-inductance package, delivers clean switching and minimal ringing in hard-switching power supply topologies. Adjustable gate drive strength allows control of the slew rate from 20V/ns to 150V/ns, which can be used to actively control EMI and optimize switching performance. The LMG3426R050 includes the zero-voltage detection (ZVD) feature which provides a pulse output from the ZVD pin when zero-voltage switching is realized.

Advanced power management features include digital temperature reporting and fault detection. The temperature of the GaN FET is reported through a variable duty cycle PWM output, which simplifies managing device loading. Faults reported include overcurrent, short-circuit, overtemperature, VDD UVLO, and high-impedance RDRV pin.

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* Data sheet LMG342xR050 600 V 50 mΩ GaN FET With Integrated Driver, Protection, and Temperature Reporting datasheet (Rev. C) PDF | HTML 29 Feb 2024

Design & development

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Evaluation board

LMG342X-BB-EVM — LMG342x evaluation module

The LMG342X-BB-EVM is an easy-to-use breakout board to configure any LMG342xR0x0 half-bridge boards, such as the LMG3422EVM-043, as a synchronous buck converter. By providing a power stage, bias power and logic circuitry, this evaluation module (EVM) allows for quick measurements of the gallium (...)

User guide: PDF | HTML
Not available on TI.com
Daughter card

LMG3422EVM-043 — LMG3422R030 600-V 30-mΩ half-bridge daughter card

LMG3422EVM-043 configures two LMG3422R030 GaN FETs in a half-bridge with the latched over current protection function and all the necessary auxiliary peripheral circuitry. This EVM is designed to work in conjunction with larger systems.
User guide: PDF | HTML
Not available on TI.com
Calculation tool

LMGXX-GAN-LLC-CALC — GaN LLC resonant converter device loss calculator

Device Loss Calculator can be used to evaluate different devices for different topologies of the LLC Resonant Converter
Supported products & hardware

Supported products & hardware

Products
Gallium nitride (GaN) power stages
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