Isolated current transducers

19 July 2017 Analogue, Mixed Signal, LSI

LEM expanded its miniature, integrated circuit transducers range for AC and DC isolated current measurement up to 300 kHz with the introduction of the GO series. These new components offer full isolation despite their small size, by integrating the primary conductor for nominal current measurements of 4 A, 6 A, 8 A, 10 A, 12 A, 16 A, 20 A or 30 A with a measurement span of 2,5 times the nominal current . Products in the GO series are able to support high overload currents up to 200 A peak for short durations (1 ms).

The transducers are mounted directly onto a printed circuit board as SO8 or SO16 SMD devices. They are simple to use as they integrate low resistance primary conductors (minimising power losses) within a proprietary ASIC to allow direct current measurement and consistent insulation performance, while still providing high creepage and clearance distances.

Standard models provide an analog voltage output with different sensitivity levels according to the models to achieve an output voltage of 800 mV @ IPN for 5 V versions and 500 mV @ IPN for 3.3 V versions. Ratiometric output is also an option through dedicated models.

For more information contact Denver Technical Products, +27 (0)11 626 2023, [email protected], www.denver-tech.co.za

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