News: Microelectronics
9 October 2024
Navitas adds TOLT package to GaNSafe family
Gallium nitride (GaN) power IC and silicon carbide (SiC) technology firm Navitas Semiconductor Corp of Torrance, CA, USA says that its high-power GaNSafe family is now available in a TOLT (Transistor Outline Leaded Top-side cooling) package.
The GaNSafe family has been created specifically to serve demanding, high-power applications, such as AI data centers, solar/energy storage, and industrial markets. Navitas’ 4th generation integrates control, drive, sensing and critical protection features that enable what is reckoned to be unprecedented reliability and robustness. GaNSafe is claimed to be the world’s safest GaN with short-circuit protection (350ns max latency), 2kV ESD protection on all pins, elimination of negative gate drive, and programmable slew rate control. All these features are controlled with 4-pins, allowing the package to be treated like a discrete GaN FET, requiring no VCC pin.
The TOLT packaging enhances thermal dissipation through the top side of the package, allowing heat to be dissipated directly to the heatsink (not through the PCBA). This enables the reduction of operating temperature and increases current capability, resulting in the highest level of system power density, efficiency and reliability.
“With over 200 million units shipped and supplied with a 20-year warranty, Navitas’ highly integrated high-power GaNSafe ICs are proven to deliver performance and reliability while simplifying design-in for systems up to 22kW,” says Charles Bailley, senior director of business development. “As the most protected, reliable and safe GaN devices in the industry, GaNSafe took our technology into mainstream applications above 1kW. Now, with the enhanced thermal dissipation of the TOLT package, we are enabling customers to deliver even better performance, efficiency, power density and reliability in even the most demanding applications.”
Suitable for applications from 1kW to 22kW, 650V GaNSafe in TOLT packaging is available with a range of RDS(ON)MAX from 25mΩ to 98mΩ. Integrated features and functions include:
- high-speed short-circuit protection, with autonomous ‘detect and protect’ with ultra-fast 350ns/50ns latency;
- protected, regulated, integrated gate-drive control, with zero gate-source loop inductance for reliable high-speed 2MHz switching capability to maximize application power density;
- electrostatic discharge (ESD) protection of 2kV, compared with zero for discrete GaN transistors;
- 650V continuous and 800V transient voltage capability for extraordinary application conditions;
- integrated Miller clamp (no negative gate bias, higher 3rd quadrant efficiency);
- programmable turn-on and turn-off speeds (dV/dt) to simplify EMI regulatory requirements;
- simple 4-pin device, allowing the package to be treated like a discrete GaN and requiring no additional VCC pin;
- robust, thermally enhanced packaging: ultra-low RQ_JUNC-AMB and board-level thermal cycling (BLTC) reliability.
In addition to the new ICs, Navitas will be offering reference design platforms based on GaNSafe TOLT for applications including data-center power supplies and EV on-board chargers. These system platforms include complete design collateral with fully tested hardware, embedded software, schematics, bill-of-materials, layout, simulation, and hardware test results.
Navitas launches GaNSafe power platform
