1A & 3A, high-integration step-down DC-DCs simplify safety-standards compliance
Using these DC-DC converters, designers can operate designs from 4.5-60V as well as reduce power dissipation and solution size compared to other solutions to rapidly comply with the IEC 61508 safety standard. The converters guarantee 1A and 3A operation (5V output) and are suitable for high voltage industrial applications such as sensors, programmable logic controllers (PLCs), industrial controls, distributed supply regulation, and factory/building/power grid automation. They are also applicable for battery back-up, Power-over-Ethernet (PoE), and data centres. Operating over the -40 to +125C temperature range, the MAX17572 is available in a 12-pin, 3 x 3 mm thin-DFN (TDFN) package and the MAX17574 is available in a 24-pin, 4 x 5 mm TQFN package.
The converters deliver over 90% efficiency across 50-100% of full load current; integrated MOSFETs and compensation reduce solution size; the DC/DCs operate at high-switching frequency with low minimum on-time; and internal compensation addresses any output voltage and switching frequency combination without compromising bandwidth, for ease-of-use and rapid design.
“Industrial equipment’s control power supply inputs must meet 60V input and low thermal dissipation for reliable operation and standards compliance,” said Andreas Kuhn, Head of Hardware Development, Drives Chemnitz, Siemens AG. “With Maxim’s Himalaya DC-DC converters, we can consistently meet our requirements for the SINAMICS Drives Family.”
“Maxim was the first to bring synchronous rectification at 60V to the market,” said Viral Vaidya, Executive Business Manager at Maxim Integrated. “Today, we continue this innovative approach by delivering 40% lower dissipation even against competing synchronous solutions.”
MAX17572 is priced at $1.83 and MAX17574 at $2.19 (both 1000). Evaluation kits are available for $29.73.
Maxim Integrated; www.maximintegrated.com/products/MAX17572 and www.maximintegrated.com/products/MAX17574
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