Up Converters for GPUs, Step-Down Converters for Always On Car Systems, Compact 250 V EMI Filters and a Raffle for Free Stuff!
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Step-Down Converters Target Always-On Car Systems Maxim Integrated Products has announced the ultra-compact, pin-compatible MAX20075 and MAX20076 step-down converters that enable system designers looking to create small and highly efficient 40-V load dump-tolerant applications. The MAX20075 and MAX20076 step-down converters offer low quiescent current (IQ) and feature integrated compensation. This enables minimal external components that can lead up to 50% savings in board space making them well-suited for always-on automotive applications.
According to Maxim Integrated, car customers expect always-on applications to bring them experiences richer and more compelling than ever before. However, car system designers are challenged with having to balance delivering advanced features with meeting size constraints, power-saving features and high efficiency.
The MAX20075 and MAX20076 in peak current mode draw just 3.5 µA in the low power operating mode, which is key to meeting the stringent OEM IQ consumption requirements of 100 µA per module. The converters enable low noise operation via pin-controlled spread spectrum and fixed 2.1 MHz operation to meet CISPR 25 Class 5 EMI compliance. An added advantage of the 2.1 MHz operation and internal compensation is that it lowers the solution size and the bill of materials (BOM) compared to a non-synchronous device that operates in the AM band. CONTINUE READING
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DC-DC Converters Serve Renewable Energy Applications
CUI's Power Group has announced a line of DC-DC converters ranging from 5 W to 40 W. The AE series, available in board mount, chassis mount and DIN rail mount configurations, offers power ratings of 5 W, 10 W, 15 W and 40 W with input voltages up to 1,500 VDC and input ratio ranges up to 10:1. Designed for reliable operation in renewable energy applications such as solar power equipment, wind turbines and electric charging stations, the new models feature 5,600 VDC input to output isolation and a wide operating temperature range up to -40 to +70°C at full load. The series is also rated to operate at up to 5,000 meters, allowing it to support remote, high altitude installations.
These new isolated DC-DC converters are housed in fully encapsulated packages for use in harsh environments with measurements beginning at 2.75" x 1.89" x 0.93" (70 mm x 48 mm x 23.50 mm). Output voltage options of 5-, 9-, 12-, 15- and 24-VDC are available, depending on the series, including efficiency ratings up to 84%. Protections for over voltage and over current as well as continuous short circuit with automatic recovery come as standard.
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Compact 250-V EMC Filters Deliver 6 A to 30 A
TDK has announced the introduction of the TDK-Lambda RSEV series of EMC filters, with a voltage of 250 VAC/VDC and a choice of 6-, 10-, 16-, 20- and 30-A currents ratings. The RSEV has an integrated touch-resistant terminal block with recessed, captive screws. Hardware cannot be misplaced or dropped inside the system enclosure. The filters are suitable for general purpose use in a wide range of industrial and communications equipment.
The RSEV series is chassis mountable, or, with an optional kit, can be attached to the industry standard DIN rails. The maximum weight is 150 g for the 30 A model. All models share a common package size of 85 mm x 39 mm x 30 mm (L x W x H), a 37% reduction in size compared to previous models (RSEN 30A). The filters have an operating ambient temperature rating of -25 to +85°C with derating above 55°C.
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