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EETE NOVEMBER 2012

POWER ELECTRONICS 600-V trench IGBTs offer improved performance power dissipation and achieve higher power density, and positive for appliance motor drives VCE(on) temperature coefficient for easy paralleling. The devices International Rectifier is expanding its family of Insulated Gate Bi- are suitable for a wide range of switching frequencies, optimized polar Transistors (IGBTs) with the introduction of the IRGR4045D- up to 20 kHz. Offered as both die and PbF and IRGS4045DPbF. The 600 V Trench ultrafast IGBTs use packaged devices, the devices include IR’s thin wafer Field-Stop Trench technology that significantly optimized square reverse bias safe reduces switching and conduction losses to deliver higher power operating area (RBSOA), maximum density and greater efficiency at higher frequencies. Co-packaged junction temperature of 175°C and low with a diode and available in DPAK and D2Pak packages, the new EMI for improved reliability. IGBTs feature a nominal current of 6 A and a minimum short circuit Visit International Rectifier rating of ≥ 5 µs. The new devices also offer low VCE(on) to reduce www.irf.com SIP package 1.5A point-of- load DC-DC converters Efficient POWER T/1.5-W12-C a miniature 1.5A SIP SOLUTIONS Murata has added the OKR- model to its OKR family of non-iso- from the wall to the point of load TM lated point-of-load converters. The 10W~468 W OKR series offers designers a choice of 1.5, 3, 6 and 10 Amp modules in a through-hole (SIP) format. The Digital Power Modules use of a common, industry-standard Intermediate Bus l Point of Load footprint and form factor across the product range helps simplify inclu- sion of the devices in both exist- ing and new designs. Applications 0.25 W~600 W include the powering of ASICs, FPGAs, DSPs, microprocessors and Dc-Dc Converters communications ICs in both data- Board Mount l Chassis Mount com and industrial equipment. Based on 600 kHz synchronous buck topology, the OKR-T/1.5-W12-C offers high power conversion ef- ficiencies of 93% and also has the ability to drive up to 200 uF ceramic 1W~2400 W capacitive loads. Output voltage is programmable from 0.591 to 6.0 Ac-Dc Power Supplies VDC and is able to operate from a Open Frame l Chassis Mount l External wide input voltage range of 4.5 to 14 VDC. The OKR-T/1.5-W12-C delivers outstanding thermal derat- ing performance and other design features including over temperature and over current protection, remote With a continuous focus oneffi ciency, density, andsystem optimization, On/Off control, and under voltage we keep our customers on theleading-edge of the power curve. lock out (UVLO). The units measure 10.4x10.16x6.1mm and are rated for use from -40 to +85ºC. Murata Europe www.murata.co.uk www.cui.com/power www.electronics-eetimes.com Electronic Engineering Times Europe November 2012 55


EETE NOVEMBER 2012
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