Our design calls for a VGH = 18V. This would correspond to Vo3 = 18V. The question is do I use the Doubler configuration or Trippler configuration? In the Doubler configuration, the max Vo3 indicated on page 22 of the data sheet calls for 2xVo1 - (2xVf+2xIo(2xrdsonQ5 + rdsonQ3 +rdsonQ4)).
My Vo1 = 10V.
When using the equation with the given rdsON values, I get around 17.8V typical and 17.2V for max rdsON values. This math would make me consider using the Trippler mode. I cannot find where the minimum Vo3 is in Trippler mode in the data sheet, but everything on these forums say it's min is 2xVo1 = 20V. The question then becomes, if I can't get Vo3 = 18V in Doubler mode because of the rdsOn losses, and the min for Trippler mode is too high (2xVo1 = 20V), which mode do I use?
Thanks,
Kevin
