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Gallium nitride (GaN) power stages

LMG3526R030

ACTIVE

650-V 30-mΩ GaN FET with integrated driver, protection and zero-voltage detection

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Data sheet

LMG3526R030

ACTIVE
Data sheet Order now

Product details

VDS (max) (V) 650 RDS(on) (mΩ) 30 ID (max) (A) 55 Features Cycle-by-cycle overcurrent protection, Latched overcurrent protection, Overtemperature protection, PWM temperature reporting, Top-side cooled, Zero voltage detection Rating Catalog Operating temperature range (°C) -40 to 150
VDS (max) (V) 650 RDS(on) (mΩ) 30 ID (max) (A) 55 Features Cycle-by-cycle overcurrent protection, Latched overcurrent protection, Overtemperature protection, PWM temperature reporting, Top-side cooled, Zero voltage detection Rating Catalog Operating temperature range (°C) -40 to 150
VQFN (RQS) 52 144 mm² 12 x 12
  • 650V GaN-on-Si FET with integrated gate driver
    • Integrated high precision gate bias voltage
    • 200V/ns FET hold-off
    • 2MHz 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
    • LMG3526R030 includes zero-voltage detection (ZVD) feature that facilitates soft-switching converters
  • Top-side cooled 12mm × 12mm VQFN package separates electrical and thermal paths for lowest power loop inductance
  • 650V GaN-on-Si FET with integrated gate driver
    • Integrated high precision gate bias voltage
    • 200V/ns FET hold-off
    • 2MHz 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
    • LMG3526R030 includes zero-voltage detection (ZVD) feature that facilitates soft-switching converters
  • Top-side cooled 12mm × 12mm VQFN package separates electrical and thermal paths for lowest power loop inductance

The LMG352xR030 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 LMG352xR030 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 LMG3526R030 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 LMG352xR030 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 LMG352xR030 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 LMG3526R030 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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Technical documentation

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Type Title Date
* Data sheet LMG352xR030 650 V 30 mΩ GaN FET With Integrated Driver, Protection, and Temperature Reporting datasheet (Rev. A) PDF | HTML 23 May 2024
Technical article GaN 開關整合如何在 PFC 中實現低 THD 與高效率 PDF | HTML 21 Mar 2024
Technical article GaN 스위치 통합으로 PFC에서 낮은 THD와 높은 효율성을 구현하 는 방법 PDF | HTML 21 Mar 2024
Technical article How GaN switch integration enables low THD and high efficiency in PFC PDF | HTML 21 Feb 2024
White paper Achieving GaN Products With Lifetime Reliability PDF | HTML 02 Jun 2021
Application note Thermal Design and Performance of Top-Side Cooled QFN 12x12 Package 05 Mar 2021

Design & development

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Evaluation board

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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

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LMG3522EVM-042 configures two LMG3522R030 GaN FETs in a half bridge with the cycle-by-cycle over current protection, latched short circuit protection function and all the necessary auxiliary peripheral circuitry. This EVM is designed to work in conjunction with larger systems.

User guide: PDF
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

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Calculation tool

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Gallium nitride (GaN) power stages
LMG3410R050 — 600-V 50-mΩ GaN with integrated driver and protection LMG3410R070 — 600-V 70mΩ GaN with integrated driver and protection LMG3410R150 — 600-V 150-mΩ GaN with integrated driver and overcurrent protection LMG3411R050 — 600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection LMG3411R070 — 600-V 70-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection LMG3411R150 — 600-V 150-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection LMG3422R030 — 600-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting LMG3522R030 — 650-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting LMG3522R030-Q1 — Automotive 650-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting LMG3526R030 — 650-V 30-mΩ GaN FET with integrated driver, protection and zero-voltage detection
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Calculation tool

SNOR030 — GaN CCM Totem Pole PFC Power Loss Calculation Excel Sheet

Supported products & hardware

Supported products & hardware

Products
Gallium nitride (GaN) power stages
LMG3410R050 — 600-V 50-mΩ GaN with integrated driver and protection LMG3410R070 — 600-V 70mΩ GaN with integrated driver and protection LMG3410R150 — 600-V 150-mΩ GaN with integrated driver and overcurrent protection LMG3411R050 — 600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection LMG3411R070 — 600-V 70-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection LMG3411R150 — 600-V 150-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection LMG3422R030 — 600-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting LMG3422R050 — 600-V 50-mΩ GaN FET with integrated driver, protection and temperature reporting LMG3522R030 — 650-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting LMG3522R030-Q1 — Automotive 650-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting LMG3526R030 — 650-V 30-mΩ GaN FET with integrated driver, protection and zero-voltage detection
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Reference designs

PMP40988 — Variable-frequency, ZVS, 5-kW, GaN-based, two-phase totem-pole PFC reference design

This reference design is a high-density and high-efficiency 5-kW totem-pole power factor correction (PFC) design. The design uses a two-phase totem-pole PFC operating with variable frequency and zero voltage switching (ZVS). The control uses a new topology and improved triangular current mode (...)
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