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Add margining capability to DC-DC converter

Posted: 07 Jan 2009     Print Version  Bookmark and Share

Keywords:DS4404  DAC  DS4402 

This application note by Maxim shows how to connect the DS4404, a 4-channel adjustable current DAC (or the DS4402, a 2-channel version of the DS4404), to a DC-DC converter circuit to add margining capability.

The circuit in illustrated in this document shows how simple it is to integrate the DS4404 into an existing design. The DS4404 is added to the feedback node so that the VOUT of the DC-DC converter can be adjusted. On power up, the DS4404 outputs a current of 0A (appears as high impedance), essentially making the DS4404 transparent until it is written to through I2C.

View the PDF document for more information.





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