IR Announces New Process Technology for IGBTs and FREDs
International Rectifier (IR, El Segundo, CA) announced a new process technology for IGBTs and FREDs that it claims delivers 70 percent faster turn-off time than previous-generation devices and more than 20 percent lower power loss. The new technology is optimized for IGBTs and FREDs used in bridge-type inverters found in motor drives, welders and UPSs.
When compared to existing devices, the new technology increases useful ac motor-speed range. Power loss is reduced, making smaller heatsinking and lower system costs possible. The Super 247 Co-Pack IGBTs made with the new technology can handle up to 7.5HP, and provide a 10usec short-circuit rated solution. The new packs do not require negative bias to turn off.
“By eliminating the negative bias supply, the new IGBTs can be driven with high-voltage gate driver ICs such as the IR2213 or IR2233. The IGBTs are perfect companions for IR’s integrated and fully protected gate drivers in simple, cost-effective motor drives,” commented Alberto Guerra, motor drive sector director at IR.
Two IGBT/FRED Co-Packs using the new technology are now available for sampling. Rated at 1,200V, the two devices have been optimized for applications such as 400Vac to 480Vac input bridge-type inverters for power levels up to 7.5HP. The IRGPS60B120KD is optimized for frequencies up to 25kHz and is used for motor drives. The IRGPS40B120UD Co-Pack IGBT is optimized for frequencies up to 50kHz and is designed for UPS, welding, induction heating and switched-mode power supplies. Pricing for the devices is $8.32 each in 10,000-unit quantities. Samples will be available in July 2001 with volume production in August 2001.
