nPM2100 EK Evaluation Kit

Evaluation kit for the nPM2100 Power Management IC (PMIC) for non-rechargeable batteries

The nPM2100 Evaluation Kit allows for simple evaluation and code-free configuration of the nPM2100 Power Management IC (PMIC).

  • Seamless integration and code-free configuration with the nPM PowerUP desktop app
  • Male pin headers provide access to all nPM2100 PMIC connections, for easy connection to Nordic Development Kits (DK) and external test equipment
  • 6 included battery holders for different types and series combinations of batteries
  • Integrated LEDs and pushbuttons allow for evaluation of the built-in LED drivers and GPIOs of the PMIC 

By connecting to the nPM PowerUP app found in nRF Connect for Desktop, all settings of the nPM2100 can easily be configured through an intuitive GUI and exported as code to be implemented in your MCUs application.

Included are battery holders for AA and AAA alkaline batteries, both single and two-in-series, as well as common coin-cell batteries in both 20 and 11.6 mm diameter variants, for example CR2032 and LR44. 

To get the information from this page in a print friendly format, download the nPM2100 product brief. 

PDF IconDownload nPM2100 product brief [PDF]

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Key features
  • nPM2100 with passives in a performance optimized layout
  • Battery holders for 1S and 2S AA and AAA batteries as well as CR20xx and LR44 batteries
  • Male pin headers for all pins on the nPM2100 PMIC
  • USB-C for power and data communication
  • LEDs for displaying battery state-of-charge
  • Seamless configuration through nPM PowerUP desktop software
Documentation
Downloads

Low power high accuracy fuel gauging

tailored for embedded IoT

Estimating battery-state of non-rechargeable applications

Applications using non-rechargeable batteries, rarely have an indication of the remaining energy or operation time of the device. Instead manufacturers rely on the availability of replacement batteries, and the end-users ability to change the battery once the device dies. In certain situations, and for certain applications, it can be useful, not to say essential, for the end-user to know what the state-of-charge of their non-rechargeable device is.

Having this information available to the end-user could mitigate the temptation to preemptively change an only partially discharged battery, to ensure guaranteed operation of the device for a period of time. Giving the end-user the ability to confirm that the battery is, in fact, only partially discharged, creates an impression of a longer battery life. In turn this leads to a more satisfied customer and better reputation for the products battery life and it also lowers the products environmental impact by reducing battery waste.

The reason battery fuel gauging is not implemented in primary-cell powered applications are many, but mostly it is due to fact that the mainstream methods avaiable for estimating this gives inaccurate and unreliable results. That is why we, in the nPM2100 PMIC, implemented the same type of algorithm-based, highly accurate fuel gauge found in the nPM1300 PMIC, but for non-rechargeable batteries. The algorithms work with any combination of standard 1.5 V nominal AA or AAA alkaline batteries, 1S or 2S, as well as coin-cell and button-cell batteries, like CR2032 and LR44. More battery types will be supported based on reported customer needs. 

Learn how

Guide to accurate fuel gauging of primary-cell batteries

A practical guide to fuel gauge primary-cell batteries

To accurately estimate the battery state-of-charge in percent, from 0 to 100 %, the nPM2100's fuel gauge functionality uses an algorithms specially created by Nordic Semiconductor, tailored for the different non-rechargeable batteries on the market, as well as some key parameters measured by the PMICs hardware. The estimation algorithm can be run on any Arm Cortex M4 or M33, like those found in the nRF52, nRF53, nRF54 and nRF91 Series and does not require additional hardware beyond this.  

Learn how to implement fuel gauging for non-rechargeable batteries with the nPM2100: