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LMG3626

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650V 270mΩ GaN FET with integrated driver, protection and current sensing

Product details

VDS (max) (V) 650 RDS(on) (mΩ) 270 ID (max) (A) 3.6 Features Bottom-side cooled, Current sense, Cycle-by-cycle overcurrent protection, Enable pin, Low Quiescent Current, Low standby current, Overtemperature protection, Slew Rate Control, Wide input voltage Rating Catalog Operating temperature range (°C) -40 to 125
VDS (max) (V) 650 RDS(on) (mΩ) 270 ID (max) (A) 3.6 Features Bottom-side cooled, Current sense, Cycle-by-cycle overcurrent protection, Enable pin, Low Quiescent Current, Low standby current, Overtemperature protection, Slew Rate Control, Wide input voltage Rating Catalog Operating temperature range (°C) -40 to 125
VQFN (REQ) 38 42.4 mm² 8 x 5.3
  • 650-V 270-mΩ GaN power FET
  • Integrated gate driver with low propagation delays and adjustable turn-on slew-rate control
  • Current-sense emulation with high bandwidth and high accuracy
  • Cycle-by-cycle overcurrent protection
  • Overtemperature protection with FLT pin reporting
  • AUX quiescent current: 240 µA
  • AUX standby quiescent current: 50 µA
  • Maximum supply and input logic pin voltage: 26 V
  • 8 mm × 5.3 mm QFN package with thermal pad
  • 650-V 270-mΩ GaN power FET
  • Integrated gate driver with low propagation delays and adjustable turn-on slew-rate control
  • Current-sense emulation with high bandwidth and high accuracy
  • Cycle-by-cycle overcurrent protection
  • Overtemperature protection with FLT pin reporting
  • AUX quiescent current: 240 µA
  • AUX standby quiescent current: 50 µA
  • Maximum supply and input logic pin voltage: 26 V
  • 8 mm × 5.3 mm QFN package with thermal pad

The LMG3626 is a 650-V 270-mΩ GaN power FET intended for switch-mode power-supply applications. The LMG3626 simplifies design and reduces component count by integrating the GaN FET and gate driver in a 8-mm by 5.3-mm QFN package.

Programmable turn-on slew rates provide EMI and ringing control. The current-sense emulation reduces power dissipation compared to the traditional currentsense resistor and allows the low-side thermal pad to be connected to the cooling PCB power ground.

The LMG3626 supports converter light-load efficiency requirements and burst-mode operation with low quiescent currents and fast start-up times. Protection features include under-voltage lockout (UVLO), cycle-by-cycle current limit, and overtemperature protection. Overtemperature protection is reported with the opendrain FLT pin.

The LMG3626 is a 650-V 270-mΩ GaN power FET intended for switch-mode power-supply applications. The LMG3626 simplifies design and reduces component count by integrating the GaN FET and gate driver in a 8-mm by 5.3-mm QFN package.

Programmable turn-on slew rates provide EMI and ringing control. The current-sense emulation reduces power dissipation compared to the traditional currentsense resistor and allows the low-side thermal pad to be connected to the cooling PCB power ground.

The LMG3626 supports converter light-load efficiency requirements and burst-mode operation with low quiescent currents and fast start-up times. Protection features include under-voltage lockout (UVLO), cycle-by-cycle current limit, and overtemperature protection. Overtemperature protection is reported with the opendrain FLT pin.

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Technical documentation

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* Data sheet LMG3626650-V270-mΩ GaN FET With Integrated Driverand Current-Sense Emulation datasheet (Rev. A) PDF | HTML 14 Nov 2023
Technical article The benefits of low-power GaN in common AC/DC power topologies PDF | HTML 30 Jan 2024
Application brief Maximize System Efficiency With Integrated Current Sensing From TI GaN PDF | HTML 30 Nov 2023
Product overview Designing With the LMG362x Family of Low-Power GaN FETs PDF | HTML 28 Nov 2023
Certificate LMG3626EVM-074 EU Declaration of Conformity (DoC) 22 Sep 2023

Design & development

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Evaluation board

LMG3626EVM-074 — LMG3626 evaluation module for 65-W quasi-resonant flyback converter with USB type-C® PD

The LMG3626EVM-074 evaluation module (EVM) demonstrates high-efficiency and high-density for a 65-W USB Type-C® power delivery (PD) off-line adapter using the LMG3626 integrated GaN FET with current-sense emulation. The input supports a universal 90 Vac to 265 Vac and the single output can be (...)

User guide: PDF | HTML
Calculation tool

LMG36XX-CALC LMG36XX Quasi-Resonant Flyback Power Stage Design Calculator

The purpose of this tool is to aid in the design of the main power stage components of a Quasi-Resonant Flyback Converter (QR) with the use LMG36XX integrated GaN FET. Calculations are provided for frequency, voltage/current stresses, and losses in converter.
Supported products & hardware

Supported products & hardware

Products
Gallium nitride (GaN) ICs
LMG3622 650V 120mΩ GaN FET with integrated driver, protection and current sensing LMG3624 650V 170mΩ GaN FET with integrated driver, protection and current sensing LMG3626 650V 270mΩ GaN FET with integrated driver, protection and current sensing LMG3612 650-V 120-mΩ GaN FET with integrated driver and protection LMG3616 650-V 270-mΩ GaN FET with integrated driver and protection
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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VQFN (REQ) 38 View options

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