NPM2100 EK CONNECTION

[Luiz Miranda]

NPM2100 EK CONNECTION

Can I connect The NPM2100 EK with NRF52 DK?
If so.....
1. How do I physically do this?
2. Can I  program the NPM2100 EK to send Voltage Supply of 1.7V ~ 3.6V to the NRF52 DK? (What tool can I use to do this?)
If not...
How can I use the NPM2100 EK to generate Voltage Supply for a NRF52832-QFAA-R? (What tool can I use to do this?))

Can I put an Active Buzzer on NPM2100 EK and program the NPM2100 PMIC to generate a 3V signal for Buzzer?

Thanks in advance!

[Luiz Miranda]

Hi Andreas:

I will take a look at the getting started pages.

I have a question and I don't know if you can help me.

I am developing a project with NRF52832-QFAA-R, a Passive Buzzer and chip antenna from Johanson Technology Inc ..
The battery will be CR 20232.
The Passive Buzzer and the CR 2032 will Be Off-PCB.

Is it necessary to define an Linear, Low Drop Out (LDO) Regulator for NRF52832-QFAA-R?

Regards

Luiz

[AHaug]

Hi Luiz,

I had to get some input from the PMIC team w.r.t your latest set of questions:

The CR2032 battery is nominally 3V, but full battery is typically 3.2V or so. This means that the boost converter will be in pass through mode if the output voltage is programmed to 3V. In pass-through mode the output voltage is essentially the same as battery voltage. If you want regulated 3V then you could potentially set the boost output to 3.3V and use the internal LDO programmed to 3V to get the regulated 3V output. It all depends on the current/voltage requirements on the peripherals (buzzer etc). The nRF52 can be connected directly to the boost output.

Let me know if this answers your question

Kind regards,
Andreas 

[Luiz Miranda]

Hi Andreas:

Thanks for the answer.

I bought the NRF52 DK and I will receive in the next days.
Is there any kind of socket for nrf52832 48v QFN package?

Kind Regards

Luiz Miranda

[AHaug]

Hi Luiz,

I assume you're referring to third party sockets for the 48 pin QFN package? If so, then we generally don't have any recommendations for third party components and you must do the evaluation for said third party components yourself.

Let me know if this answers your questions

Kind regards,
Andreas

[Luiz Miranda]

Hi Andreas:

Thanks for answering.

Is there a documentation that explains about firmware update in the NRF52 series?

Regards

Luiz

[AHaug]

Hello,

Yes, there's: 

• The general Bootloaders and DFU documentation https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/bootloaders_dfu/index.html 
• Working with the 52 Series which contains the "FOTA updates on nRF52 Series Devices"
• And our academy pages that has theory and hands on exercises for DFU with various transports: https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/ 

Let me know if this is what you're looking for

Kind regards,
Andreas