International Rectifier Releases the IR4007 DC/DC Converter Control IC

International Rectifier (El Segundo, CA) has released a 200V, integrated, switch-mode power supply IC. The IR4007 is a dc/dc converter control IC with a fully avalanche-characterized MOSFET built in. The avalanche capability is intended to simplify circuit design, since the device can handle momentary transient voltages above its rated breakdown voltage as long as they do not exceed the specified avalanche energy of 100mJ.

The IR4007 features input and output feedback circuits and two operating modes for efficient power conversion and flexible circuit design. Application topologoies include 48V input and 3.3V output flyback converters up to 5A. Typical applications of the new device include dc/dc conversion for distributed-architecture power systems with a 48V main power rail, such as those used in telecom power supplies and datacom system servers, or ac/dc switching power supplies with up to 100Vdc nominal dc input.

"The IR4007 is the most rugged, most flexible, most efficient SMPS control IC for cost-optimized, primary-side dc/dc flyback converters. Other devices lack the avalanche-energy capability that the IR4007 includes," claimed David Tam, International Rectifier's vice president for power-integrated circuit products.

Pricing for the new IR4007 begins at $2.00 each in 10,000-unit quantities.