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Second Generation 650 GaN FET in TO-220 lowers On-Resistance

Second Generation 650 GaN FET in TO-220 lowers On-Resistance

New Products |
By Nick Flaherty



In a standard T-220 package, the TPH3212PS has an on-resistance of 72 mΩ and makes bridgeless totem-pole power factor correction (PFC) designs possible.

Transphorm’s product portfolio consists of 600V and 650V discrete GaN FETs in TO-220, TO-247, and PQFN88 packages for power levels up to 4.5 kilowatts. The TPH3212PS fills a power level gap in the company’s second generation product line, specifically between the 52mΩ and 110mΩ FETs. As a result, battery charger, PV inverter, server and servo motor manufacturers gain more design flexibility with 2x to 4x faster switching over silicon devices.

The company develops its GaN in well-understood TO-XXX and PQFN88 packages and uses a high-reliability cascode configuration, which eliminates the need for custom drivers and—most importantly—considerably increases the GaN FET’s gate safety margin.

“Transphorm aims to enable the market by delivering GaN in the highest quality, highest reliability format as possible,” said Umesh Mishra, CTO at Transphorm. “We recognize GaN is not just a drop-in replacement for silicon MOSFETs used today. Board redesign and system modifications are required to capitalize on GaN’s complete set of benefits from performance through to system cost. If we can minimize that learning curve by working with well-known packages and a configuration that behaves similarly to a MOSFET—we believe the industry will move further faster.”

Bel Power Solutions is developing its first AC-DC power supply built on Transphorm’s 650V GaN FET to provide power factor correction in a bridgeless totem-pole topology. The supply is certified 80 Plus Titanium and also displays the CE-Mark for the European Low Voltage Directive (LVD).

Fully-qualified and in production, the TPH3212PS is priced at US$8.94 in 1000-unit quantities. The product is currently supported by a SPICE program and application notes. A full evaluation kit for 2.5 kilowatt hard-switched half-bridge, buck or boost designs is available for pre-order and priced at US$250.

www.transphormusa.com

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