Power Management ICs

Designed to reduce power consumption

Nordic Semiconductor leverages its extensive experience in ultra-low power wireless technology to develop power management ICs, enabling industry-leading low power wireless solutions.

 Why choose Nordic´s power management ICs?

icon of a battery on power management ic page on intergrated circuits     MAXIMUM ENERGY EFFICIENCY: Ultra-low power consumption means maximum energy efficiency from when the electrons leave the battery until RF signals are converted to radio waves.
icon of kits on power management ic page on intergrated circuits HIGH INTEGRATION: Combining valuable system and power management features with essential PMIC functions in a compact package, cuts board space, complexity and bill of materials.
Firmware icon on power management ic page on intergrated circuits SEAMLESS DEVELOPMENT: In a perfect world, a hardware engineer wouldn’t need to write code and a software engineer wouldn’t have to read the datasheet. The PC application, nPM PowerUP creates that world.

Low power high accuracy fuel gauging

tailored for embedded IoT

Estimating state-of-charge in rechargeable batteries

Estimating the state of charge in recherageable lithium batteries is crucial for optimizing performance and ensuring safe operation. There are several methods used to estimate the state-of-charge of single-cell lithium batteries. 

All methods have their benefits and drawbacks, but some benefits are more desired and some drawbacks are less severe than others. For the nPM1300 and nPM1304, we decided that algorithm based fuel gauging was the way to go.

 Technology

Nordic Fuel Gauge

Open circuit voltage measuring

Coloumb counting fuel gauge IC 

Pros

  + High accuracy  + No additional energy usage  + Best accuracy 

 + Ultra-low power consumption  + No additional cost added to your bill-of-materials

 + No current draw at system-off    

 + No added cost to your bill-of-materials    
       
 

Cons

  - Needs to be supported by PMIC  - Very low accuracy - Draws current even at system-off to keep coloumb counter running
     - Severly affected by temperature - Expensive, adds components to your bill-of-materials (BoM)

To take advantage of the fuel gauging capabilities of the nPM1304, you can read the application note explaining how to create a virtual model of your battery for use with the fuel gauge sample in the nRF Connect SDK. 

For selected lithium ion polymer batteries from Renata, Nordic is also providing turnkey battery models ready to use. Scroll down to see the list of supported batteries. 

Learn how

Guide to profile your batteries with nPM FG

Low power high accuracy fuel gauging tailored for embedded IoT

To accurately estimate the battery state-of-charge in percent, from 0 to 100 %, the nPM1304's fuel gauge functionality uses a model of your battery along with the battery's temperature, voltage and the current measured by the PMIC. The estimation algorithm can then be run on any Arm Cortex M4 or M33, like those found in the nRF52, nRF53 and nRF91 Series and does not require additional hardware beyond this.

The battery model is created by doing an analysis of your specific battery, in your own lab, using the nPM1300 or nPM1304 Evaluation Kit. 

Learn how to profile batteries from the comfort of your own lab:  

Fuel Gauging Webinar

nPM PowerUP walktrough Webinar

nPM PowerUP, part 1: Evaluation Kit setup and GUI walkthrough

nPM PowerUP, part 2: Exporting PMIC settings to any Zephyr RTOS application

nPM PowerUP, part 3: Profiling a battery to create a custom battery model

nPM PowerUP, part 4: Integrating fuel gauging in a Zephyr RTOS

Download pre-profiled battery models

Selected version
ICP641620PA-01 - 165 mAh Renata

Changelog:

ICP641620PA-01 - 165 mAh Renata

Datasheet

ICP621333PA-01 - 240 mAh Renata

Datasheet

ICP403029PL02 - 325 mAh Renata

Datasheet

ICP582035PR-01 - 340 mAh Renata

Datasheet

ICP582930PR-01 - 450 mAh Renata

Datasheet

ICP632136HPST - 520 mAh Renata

Datasheet

ICP682828HPMT - 560 mAh Renata

Datasheet

ICP622540PMT - 600 mAh Renata

Datasheet