topic Re: KM34P144M75SF0 in Kinetis Microcontrollers

KM34P144M75SF0

narasimhaugra — Thu, 16 Aug 2018 12:06:12 GMT

Hi Guys,

I need some help !

If i can use the ADC line as a current sense comparator in the sleep state. i need to validate the following things:

1. How low of a current can we sense?

2. What is the internal reference voltage being used for the comparator?

3. Can this sensing be done during lowest sleep state (in terms of power consumption)

Can any one suggest on this?

Please help me...!

Re: KM34P144M75SF0

narasimhaugra — Mon, 20 Aug 2018 07:24:07 GMT

Hi Please any one help me ?

Best,

Ugra

Re: KM34P144M75SF0

victorjimenez — Mon, 20 Aug 2018 18:02:05 GMT

Hello Ugra,

Regarding your questions, please see my comments below;

How low of a current can we sense?

With the ADC of the KM34 you cannot sense current directly.

What is the internal reference voltage being used for the comparator?

I recommend you to check the chapter 32 of the Reference manual. In this chapter you will find the following information regarding the reference voltage used by the ADC.

Can this sensing be done during lowest sleep state (in terms of power consumption)

In the reference manual chapter 7, table 7.1 you can find the following information regarding this question.

Link to the reference manual.

Hope it helps!

Victor.

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------