Welcome to Components-House.com
RFQs/Order

Select Language

Current Language: English
Home > News > 650V GaN power ICs for power adapters have driver and protection

650V GaN power ICs for power adapters have driver and protection

TI LMG3622 GaN plus driver

The parts, called LMG362x, differ in the size of the GaN hemt switch included. They are:

  • LMG3622 650V120mΩ 8.5A
  • LMG3624 650V 170mΩ 6A
  • LMG3626 650V 270mΩ 3.6A

“Using the LMG3622 only requires setting the desired turn-on slew rate with a programming resistor and
calculating the current sense resistor,” according to the company. Using the ICs “designers can reach up to 94% system efficiency for <75W ac-dc applications, or above 95% system efficiency for >75W ac-dc applications”.


Features include a bottom-side cooled 8 x 5.3mm QFN package, cycle-by-cycle over-current protection, enable pin, over-temperature protection and slew rate control. For the …24 and …22, TI adds USB C/PD compatibility to this list.


The devices are optimised, said TI, for quasi-resonant fly-back, asymmetrical half-bridge fly-back, inductor-inductor-converter (LLC), totem-pole power factor correction and active clamp fly-back topologies.

TI LMG3622EVM-082 GaN eval boardThere is an evaluation module for each IC, all implementing a 65W quasi-resonant fly-back converter with USB Type-C PD: LMG3622EVM-082 (left), LMG3624EVM-081 and LMG3626EVM-074.

For example, …2EVM-082 meets CoC Tier 2 and DoE Level 6 efficiency requirements and works fom inputs across 90 to 265Vrms to outputs of 20Vdc at 3.25A, or 5, 9 or 15Vdc at 3A.

If current sensing is not required, LMG3612 and LMG3616 are similar pad-for-pad devices.

Find the 120mΩ 8.5A LMG3622 on this product page and its evaluation board here