Dear Sir/Madam,
Thanks very much on your reply, as below I plot one diagram and try to explain our application in more insight, also we want to clarify the key items as below,
- 1. We power up EXTFORCE1a to c and EXTFORCE2a to b with programmed delay, also power off in same manner but DO NOT implement frequent switching on these power rails.
- 2. The supplies from EXTFORCE1a,1b,1c and EXTFORCE2a,2b are for LCD modules five power supplies, there is power on and off timing requirement so we need to program the power on/off delay.
- 3. Frequent current measurement is in need and we add the controlled switcher to EXTMEAS1a,1b,1c and EXTMEAS2a,2b, these are outside chip switching and will NOT affect EXTMEAS1x and EXTMEAS2x.
- 4. HCAVDD1x and HCAVDD2x power rails are FIXED without switching, they are corresponding to EXTFORCE1x to EXTFORCE2x to supply five voltages respectively.
We are looking forward to your evaluation on our application case and hope to hear your comments on our design approach, thanks.
BRs!
Frank