IC's needed

[Bryan]

Hi I'm looking for 2 IC's for the simmbuss circuit from dontronics. They are
ICL7662(Charge Pump Converter) and TL431(Programmable Precision Reference).
I've tried everywhere in Adelaide and on the net to find an Australian
supplier without success. Any help will be greatly appreciated.

Bryan

 

[David Milne]

Hi I'm looking for 2 IC's for the simmbuss circuit from dontronics. They are
ICL7662(Charge Pump Converter) and TL431(Programmable Precision Reference).
I've tried everywhere in Adelaide and on the net to find an Australian
supplier without success. Any help will be greatly appreciated.

Bryan

RS Components have both parts. Some versions of the ICL7662 from Intersil will be
discontinued, but it is still available from RS for $150/tube of 50. They have a
TC7662BCPA made by Microchip which may be ok as a replacement (RS 207-0118 @ $9.45).
Compare the datasheets to make sure.

The TL431 is available in different packages (SOIC8, TO92, TO226) from the same source
ranging in price from $1.22 to $1.55.

If the prices scare you, samples may be available from the manufacturers if you're prepared
to wait a week or so.