Forums - VDD_BAT COnfigurable?

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VDD_BAT COnfigurable?
karthikeyan.t
Join Date: 3 May 15
Posts: 27
Posted: Mon, 2016-12-26 17:13
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Hi,

I need to cutoff power from Li-Ion battery @2.5V.

This is for under voltage protection of the cell. Which would be the cheapest approach?

Any way to configure VDD_BAT?

Regards,

Kart

 

 

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Re: VDD_BAT COnfigurable?
Siddhesh
Join Date: 27 Sep 16
Location: Mumbai
Posts: 24
Posted: Mon, 2016-12-26 21:11
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May be BatteryReadVoltage() could be of some help to you.

It helps to measure input voltage of CSR1010.

Then at 2.5 volts, using a GPIO, you can switch OFF a transistor connected in series between the battery and CSR1010. (Take care of VCE voltage) 

I dont think it is possible to configure VDD_BATT.

Regards. 

 

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Re: VDD_BAT COnfigurable?
Dr. Nissim Zur
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Join Date: 6 Jun 16
Location: Skype: nissim.test CSR1010 External design house
Posts: 235
Posted: Mon, 2016-12-26 22:49
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If you cut the CSR1010 power source, how you will connect again ?
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Re: VDD_BAT COnfigurable?
karthikeyan.t
Join Date: 3 May 15
Posts: 27
Posted: Mon, 2017-01-02 17:03
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Yes, we cannot use software solution, what could be the cheapest hardware soultion.

 

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Re: VDD_BAT COnfigurable?
Dr. Nissim Zur
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Join Date: 6 Jun 16
Location: Skype: nissim.test CSR1010 External design house
Posts: 235
Posted: Tue, 2017-01-03 02:14
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you can use the voltage to place the chip in a dormant state. just ~ 700 nA
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Re: VDD_BAT COnfigurable?
karthikeyan.t
Join Date: 3 May 15
Posts: 27
Posted: Tue, 2017-01-03 17:00
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Thanks Dr Nissim, I think it is a feasable option.

 

 

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