600-V Gate Driver targets Server and Industrial Power

Texas Instruments (TI) today claimed the industry's fastest half-bridge gate driver for discrete power MOSFETs and IGBTs that operate up to 600V. The UCC27714 high-side, low-side driver with 4-A source and 4-A sink current capability reduces component footprint by 50 percent, enabling higher power density in high-frequency, offline ac-dc power supplies used in server, telecom and industrial designs including uninterruptible power supplies.

The UCC27714 delivers 90ns propagation delay, 40 percent lower than existing silicon solutions, tight control of the propagation delay with a maximum of 125ns across -40 to 125 degrees C and tight channel-to-channel delay matching of 20ns across -40 to 125 degrees C. The device eliminates the need for bulky gate drive transformers, saving significant board space in high-frequency switch-mode power electronics.

Key features and benefits of the UCC27714 include: Smaller footprint creates highest power-density solutions: The UCC27714 reduces gate driver component footprint by 50 percent in secondary-side controlled power supplies. Advanced noise toleration: Negative voltage handling of -6V at the switched-node pin creates the ability to tolerate noise, causing virtually no malfunctions in the electronic system. MOSFETs have the ability to drive over a wide power range: The device's high-current capability of 4A enables MOSFETs to drive over a wide power range, from a few Watts to a kiloWatt. Operates across wide temperatures: All electrical characterizations have little variations across operating temperatures, creating a simplified design and speeding time to market.

TI offers a broad range of support tools for the UCC27714 to speed time to market. Engineers can get started now using PSpice transient model simulation software or one of the following fully tested reference designs from the TI Designs reference design library: UCC27714 600W Phase Shifted Full Bridge Converter Evaluation Module (UCC27714EVM-551); 230-V, 400-W High-Efficiency Battery Charger Power Supply with PFC and LLC for 36-V Power Tools (TIDA-00355); 360W Phase Shift, Full Bridge Resonant LLC with High Side Low Side Driver (TIDA-00381); 340W Digital Controlled LLC Resonant Half-Bridge DC-to-DC Power Conversion (TIDA-00512); and 300W PFC Plus Resonant LLC Half-Bridge Controller Offline AC/DC PSU Module (TIDA-00520) .

The UCC27714 is now available in the TI store and through the company's authorized distribution network. The high-speed 600V high-side low-side gate driver comes in a small outline integrated circuit (SOIC)-14 package and is priced at US$1.75 in 1,000 unit-quantities.