SCALE-iDriver ICs introduce high-reliability SCALE-2 driver technology to 1200 V applications

Power Integrations has unveiled a family of galvanically isolated single-channel gate driver ICs ranging in output current from 2.5 A to 8 A which, according to the company, are the industry’s highest output current without an external booster.

SCALE-iDriver ICs have been optimised for driving both IGBTs and MOSFETs, and are the first products to bring Power Integrations’ FluxLink magneto-inductive bi-directional communications technology to 1200 V driver applications. FluxLink is able to eliminate the need for unreliable opto-electronics and the associated compensation circuitry, enhancing operational stability while reducing system complexity.

In addition to the new isolation technology, the gate drivers incorporate advanced system safety and protection features commonly found in medium- and high-voltage applications, helping to further enhance the product’s reliability. The eSOP package features 9.5 mm of creepage and a CTI of 600, ensuring substantial operating voltage margin and high system reliability.

The SCALE-iDriver single-channel gate driver IC has been able to dramatically reduce the component count for inverters up to 110 kW, saving space and BOM cost and increasing design flexibility.

According to Power Integrations, with the addition of a simple, low-cost booster stage, it is now far quicker to develop efficient, space-saving, reliable inverter designs rated up to 400 kW (15 A). The new devices meet the IEC 60664-1 and IEC 61800-5-1 standards, and operate from -40 °C to +125 °C and at frequencies of up to 250 kHz. They also feature Power Integrations’ Advanced Soft Shut Down (ASSD) mechanism that protects the power semiconductor switch in the event of a short circuit. ASSD is automatically triggered by monitoring desaturation levels and requires no extra components.

These ICs are suitable for applications in industrial drives, power supplies and UPS, photovoltaic inverters of all sizes, industrial HVAC, EV charging and traction equipment including commercial EVs.