Himalaya buck converters optimised for high voltage transients in safety standard compliance
With integrated MOSFETs, the 5W MAX17572 and 15W MAX17574 Himalaya converters provide a 40% reduction in power dissipation and shrink solution size by 50% compared to other solutions says Maxim. The converters operate at 90% efficiency across 50-100% of the load current.
The industrial market is digitizing at a rapid pace, all while continually improving the safety, performance, and intelligence of systems. Designers must reduce power dissipation while managing space constraints and are also hard-pressed with thermal challenges and meeting safety standard regulations. At the same time designers must account for high voltage transients up to 60V on a 24V or 48V bus.
“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 at Siemens. “With Maxim’s Himalaya DC-DC converters, we can consistently meet our requirements for the SINAMICS Drives Family.”
The MAX17572 and MAX17574 converters operate from 4.5-60V and 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 ideal for high voltage industrial applications such as sensors, programmable logic controllers (PLCs), industrial controls, distributed supply regulation, and factory/building/power grid automation.
“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.”
The devices also applicable for battery back-up, Power-over-Ethernet (PoE), and data centers. Operating from -40 ºC to +125 ºC, the MAX17572 is available in a 12-pin, 3mm x 3mm thin-DFN (TDFN) package and the MAX17574 is available in a 24-pin, 4mm X 5mm TQFN package. The MAX17572 is available for $1.83 (1000-up, FOB USA), while the MAX17574 is available for $2.19 (1000-up, FOB USA). Evaluation kits are available for $29.73.
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