ON Semiconductor, global supplier of power conversion solutions, has announced the NCP4330 – a post regulation, dual N-Channel MOSFET driver that delivers efficiency when implemented in forward converters commonly found in ATX and switch mode power supplies (SMPS).
According to ON, the NCP4330 features drive outputs for series FETs and free-wheeling synchronous FETs, to deliver higher efficiency than silicon rectifiers generally used for this purpose. When compared to traditional magnetic amplifier control circuit solutions, this device offers compact and cost-effective implementation. The device offers an efficient means of deriving 3.3 volt (V) or other outputs from the 5V power train, while not requiring additional windings or terminals on the power supply’s power transformer. The secondary alternating current (AC) signal directly feeds the NCP4330 to minimize power dissipation, while reducing the power circuit’s overall part count.
The overlap management technique offered in the NCP4330 allows soft switching – which results in higher frequency operation. This would include the new generation of ATX as well as Telecom DC-DC converters. This device integrates under voltage lockout and thermal shutdown for rugged designs.
“The NCP4330 is yet another device from ON Semiconductor that provides designers with an effective tool to help them meet increasingly more stringent efficiency requirements in ATX power supplies” said Andy Williams, ON Semiconductor vice president of Power Conversion Products. “To develop this device we drew from our industry experience and technical expertise in achieving 80plus power efficiency.”
NCP4330 is offered in the SOIC-8 package, and is priced at US$0.90 per unit in 1,000 unit quantities. Production is planned for the second quarter.
ON Semiconductor :
http://www.onsemi.com.
