iC-Haus GmbH (Bodenheim, Germany) has introduced a spike-free laser/LED switch iC-hG, with six independent channels with 0.5 A apiece, which can be freely combined as required. One simple, integrated device in a QFN package just 5 mm wide can drive up to six laser diodes or LEDs, or can supply 3x 1A if switched in parallel and in pairs for RGB applications. All six channels are paralleled for a maximum current of 3 A. Current settings are selected for each channel using individual control voltage inputs. iC-HG is also suitable for use with blue laser diodes. In both drive modes (TTL and LVDS) rise and fall times can be reduced to cut down EMI.

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Medical Design Briefs Magazine

This article first appeared in the May, 2012 issue of Medical Design Briefs Magazine.

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