Isolated 3W D2Ds Reduce Board Space in Industrial Applications
CUI Inc. announced two isolated dc-dc converter families for industrial, test and measurement, and telecommunication applications. The rugged and compact PQMC3-S and PQM3-M families increase total efficiency across the entire load curve and give improved performance at light and no loads. The converters are suited for battery-powered applications where power draw under these conditions are a concern. Rated at 3 Watts, the PQMC3-S Series is available with input ranges of 4.5- to 9-Vdc, 9- to 18-Vdc, 18- to 36-Vdc, and 36- to 75-Vdc while the PQM3-M Series offers input ranges of 9- to 18-Vdc, 18-to 36Vdc, and 36- to 75-Vdc.
Both families come equipped with an operating temperature range of -40 to + 85 degrees C at 100% load, allowing the dc-dc converters to work reliably in harsh environments. The PQMC3-S Series is housed in a compact 8 pin SIP package measuring 0.86" x 0.37" x 0.47" (22 mm x 9.5 mm x 12 mm) and the PQM3-M series is housed in a 16 pin SMT package measuring 0.94" x 0.54" x 0.30" (23.86 mm x 13.70 mm x 7.50).
Both families are available in single output voltages of 5-, 12-, or 15-Vdc while the SIP version PQMC3-S is also available in dual output voltages of ±5-, ±12-, or ±15-Vdc. Outputs are fully regulated to within ±0.2% (typical) for all line and load conditions. Input to output isolation of 1,500 Vdc is provided across the range of models.
Protections include continuous short circuit and over current. The dc-dc converters meet CISPR22/EN55022 Class B standards with limited external components. The PQMC3-S and PQM3-M Series are available now through distribution starting at $11.42 for 100 pieces.
