Power-supply transformers complement gate-driver IC family

13th March 2019
Alex Lynn

Specialist in gate-driver technology for medium- and high-voltage inverter applications, Power Integrations, has announced a range of galvanically isolated transformers that provide the correct voltage and power for the company’s SCALE-iDriver family of gate drivers. The combination delivers a simple, robust and cost-efficient DC/DC converter solution that does not require additional voltage regulation, reducing system cost and development time. 

The SIT12xxI transformer and SCALE-iDriver ICs are fully UL and VDE approved.

The new SIT12xxI transformers feature an innovative insulated construction that improves reliability and delivers a high isolation capability combined with low coupling capacitance. Devices suit both 600 V and 1200 V two-channel SCALE-iDriver gate drivers with five volt (SIT1253I) or 15V (SIT1217I) input voltages and 25V output voltage. 

The shrouded transformers weigh only nine grams and require no potting, but nonetheless pass tests for extended field life and high resistance to shock and vibration. They meet UL1446, UL61800-5-1, IEC61800-5-1, IEC61558-1 and IEC61558-2-16.

Thorsten Schmidt, Product Marketing Manager for gate-driver products at Power Integrations, stated: “The SCALE-iDriver family of IGBT and SiC-MOSFET driver ICs employs Power Integrations’ FluxLink magneto-inductive bi-directional communications technology to ensure reinforced galvanic isolation between the primary and secondary sides, setting a new standard in isolation integrity and stability. 

“By providing a perfectly matched transformer we reduce system development, qualification and certification time, and also simplify the purchasing process. The new design of the transformer construction targets industrial applications, delivering a rugged and lightweight isolated DC-DC solution while minimising common-mode noise coupling.” 

SIT12xxI transformers are available now, priced at $4.00 in quantities of 10,000.

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