Constant Current Regulators ('diodes') are back

May 20, 2009 2 Replies

On Semi have released some low cost, constant current regulators that target LED drive, but have many more applications



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Starting at $0.0545/10K, these are not the usual 'niche price nonsense' seen on other current regulator 2 terminal devices 'diodes'.



Right now in 20/25/30mA, hopefully they can do 5/10/15mA too, soon...


-jg


Look good, most likely calibrated JFETS (looking at the min. voltage they need). I would also be looking forward to 5/10 mA range which could be handy for some instrumentation purposes (not very likely to appear unless needed for huge displays, though :-) ).

Dimiter

------------------------------------------------------ Dimiter Popoff Transgalactic Instruments

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On May 21, 12:45=A0am, didi wrote: # Look good, most likely calibrated JFETS (looking at the min. voltage # they need). # I would also be looking forward to 5/10 mA range which could be handy # for some instrumentation purposes (not very likely to appear unless needed # for huge displays, though :-) ).

I asked OnSemi, and they have 5mA and 10mA variants on the road map. With LED efficiency climbing, lower currents are a trend, and I could also see applications that use 5mA as a base current (Zero EMI), and then Dims using a higher current unit as well

Only feature they lack is a reverse-battery blocking ability...

-jg

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