NVE digital isolators with integrated DC/DC converter

Expansion of the RANGE of SMD DC/DC converters – ILDC1x

Earlier this year, NVE introduced new DC/DC converters based on magnetoresistive technology in a very small DFN-6 package. These offer a transferable power of up to 250mW, are fully isolated and allow an input voltage of 3.3 volts as regulated converters.

The expansion of the product range of NVE's SMD DC/DC converters enables the isolation of the supply voltage for serial interfaces such as RS-232, RS-485, SPI. In addition, these products can be used in AD and DA converters.  With the two additions ILDC12 ( 5V) and ILDC13 (6V) the adaptation to different voltage levels is simplified. In addition, NVE offers a 16-pin SMD package with a creepage distance of 8mm and covers an operating temperature of 125°C. With this new housing variant and the higher insulation voltage of 5kVrms, approvals for UL1577 and medical IEC60601 are also achieved. In addition, these DC/DC converters offer a very low ripple of 1mVpk-pk and integrated frequency hopping significantly improves the EMC properties.

Integration of DC/DC converters into serial interfaces – IL76xxV

NVE has been offering digital isolators for serial interfaces (RS-232, RS-485) and fieldbuses such as (Profibus etc.) for many years. The first step to combine digital isolators with DC/DC converter technology was implemented by NVE in a wide-body housing (SOIC-16W). This IL76xxV series is a new development  and  allows a reduction of the additional external components. In the new versions, the new frequency hopping has also been used and additional shielding improves the EMC values. The housing is suitable for industrial applications up to 125°C and offers an insulation voltage of 5kVrms. With the new products, a data rate of up to 110Mbps is possible. Very good values for signal distortion and delay are achieved and the difference between two products of this series (Propagation Delay between any two parts) is only 6ns in the maximum.

Both the separate DC/DC converters and the products with integrated DC/DC converters are now available as samples from Angst+Pfister. NVE evaluation boards are also available for a quick investigation.

Product details