IDAC will not function during Sleep state. Can you please post your project here. We will try to suggest some steps to reduce the current after reviewing the project.
Hima, the core part of the IDAC is the bandgap reference. Looking in TRM no mention
what happens to BG in sleep. But we know comparator can wake up a part, which uses
BG. So does the IDAC go to sleep in low power modes ? Nothing is stated in its dataheet
either about sleep, and its not in the tables of sleep components ?
I will file a CASE on this.
this is my current version of the project.
It's basically an RTC example with IDAC added in.
With a scope across the LED2 and across a Rload on the IDAC, I can see my current only runs while the device is awake.
(1000ms delay was just to more clearly see the IDAC current.)
I appreciate any advice to reduce power consumption while running the IDAC.
I have confirmation from tech support that IDAC does shutdown but not why it
does. They will answer that and get back to me.
In the case that the IDAC cannot be enabled in sleep mode, is it possible to shutoff enough things in AltAct mode to get close to sleep mode (excepting the IDAC neccesaries)?
I haven't read much about AltAct, and don't know how low consumption you can actually get with that.
Thanks for any advice.
These are not 100% current but may help with estimation in a general sense.
These as well -
http://www.cypress.com/documentation/application-notes/an77900-psoc-3-and-psoc-5lp-low-power-modes-and-power-reduction AN77900 - PSoC® 3 and PSoC 5LP Low-power Modes and Power Reduction Techniques
http://www.cypress.com/documentation/application-notes/an61290-psoc-3-and-psoc-5lp-hardware-design-considerations AN61290 - PSoC® 3 and PSoC 5LP Hardware Design Considerations
http://www.element14.com/community/docs/DOC-62329/l/cypress-ep56137--software-code-example-for-enter-hibernate-mode-and-wakeup-using-picu-psoc-creator-beta5-v10 Enter Hibernate Mode and Wakeup Using PICU PSOC 3 / 5LP