MAX17261

PRODUCTION

MAX17261

5.1µA Multi-Cell Fuel Gauge with ModelGauge m5 EZ

Industry's Lowest I_Q Multi-Cell Fuel Gauge with ModelGauge m5 EZ Eliminates Battery Characterization

PRODUCTION

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Part Models 4

1ku List Price Starting From $1.61

Features

ModelGauge m5 EZ
- No Characterization Required for EZ Performance
- Robust Against Battery Variation
- Eliminates Error Near Empty Voltage
- Eliminates Coulomb-Counter Drift
- Compensates for Age, Current, and Temperature
- Does Not Require Empty, Full, or Idle States
Low 5.1µA Operating Current
Monitors Multiple-Cell Battery Pack
Wide Sense Resistor Range: 1mΩ to 1000mΩ
PCB Metal Sensing + Temperature Compensation
Supports Li+ and Variants Including LiFePO₄
Thermistor or ±1°C Internal Temperature
Dynamic Power Estimates Power Capability During Discharge
Time-to-Empty and Time-to-Full Estimation
Predicts Remaining Capacity Under Theoretical Load
No Calibration Required
Alert Indicator for Voltage, SOC, Temperature, Current, and 1% SOC Change

Additional Details

The MAX17261 is an ultra-low power fuel gauge IC which implements the Maxim ModelGauge^™ m5 algorithm. The IC monitors a multiple-series cell battery pack with an external resistor divider.

The ModelGauge m5 EZ algorithm makes fuel gauge implementation easy by eliminating battery characterization requirements and simplifying host software interaction. The algorithm provides tolerance against battery diversity for most lithium batteries and applications.

The algorithm combines the short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge, along with temperature compensation to provide industry-leading fuel gauge accuracy. The IC automatically compensates for cell-aging, temperature, discharge rate, and provides accurate state-of-charge (SOC) in percentage (%) and remaining capacity in milliampere-hours (mAh) over a wide range of operating conditions. As the battery approaches the critical region near empty, the algorithm invokes a special correction mechanism that eliminates any error. The IC provides accurate estimation of time-to-empty and time-to-full and provides three methods for reporting the age of the battery: reduction in capacity, increase in battery resistance, and cycle odometer.

The IC provides precision measurements of current, voltage, and temperature. The temperature of the battery pack is measured using an internal temperature sensor or external thermistor. A 2-wire I²C interface provides access to data and control registers. The IC is available in a tiny lead-free 0.4mm pitch, 1.5mm x 1.5mm, 9-pin WLP package and 3mm x 3mm, 14-pin TDFN package.

Design Solution: Choose a Fuel Gauge with the Right Current Sensing for Your Battery System ›

Applications

Tablets, 2-in-1 Laptops
Digital Still, Video, and Action Cameras
Medical Devices
Handheld Computers and Terminals
Financial Terminals
Mobile Printers
Augmented/Virtual Reality Devices
Robots
E-Bikes
Battery Backups
Wireless Speakers

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 4

1ku List Price Starting From $1.61

Technical Documents 8

MAX17261: 5.1µA Multi-Cell Fuel Gauge with ModelGauge m5 EZ Data Sheet (Rev.0) 06/21/2018

Open Interactive Page

MAX17261 Reliability Data 10/10/2022

UG-6595: ModelGauge m5 Host Side Software Implementation Guide 06/27/2018

UG-6597: MAX1726x ModelGauge m5 EZ User Guide 06/27/2018

Design Solutions 83 - Choose a Fuel Gauge with the Right Current Sensing for Your Battery System 10/01/2018

How to Fuel Gauge Lithium-Ion Batteries Without Battery Characterization with ModelGauge m5 EZ 01/30/2018

Enabling Automation in Logistics and Retail - Part 1 07/09/2024

Considerations for Fuel Gauging Lithium-Iron-Phosphate Batteries 08/30/2019

Design Resources 4

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX17261METD+	Thin Dual Flatpack No Leads	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX17261METD+T	Thin Dual Flatpack No Leads	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX17261MEWL+	Wafer-Level Package 3x3 Bump, Full Array	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX17261MEWL+T	Wafer-Level Package 3x3 Bump, Full Array	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX17261METD+
Pin/Package Drawing
Thin Dual Flatpack No Leads
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX17261METD+T
Pin/Package Drawing
Thin Dual Flatpack No Leads
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX17261MEWL+
Pin/Package Drawing
Wafer-Level Package 3x3 Bump, Full Array
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX17261MEWL+T
Pin/Package Drawing
Wafer-Level Package 3x3 Bump, Full Array
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

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Part Models

Product Lifecycle

PCN

Apr 27, 2024

- 2400

ASSEMBLY

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

pdf

pcn_2400

Apr 27, 2024

- 2419A

ASSEMBLY

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

pdf

pcn_2419a

Feb 21, 2019

- 1917

WAFER FAB

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

MAX17261MEWL+T

PRODUCTION

pdf

pcn_1917

Filter by Model

Part Models

Product Lifecycle

PCN

Apr 27, 2024

- 2400

ASSEMBLY

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

pdf

pcn_2400

Apr 27, 2024

- 2419A

ASSEMBLY

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

pdf

pcn_2419a

Feb 21, 2019

- 1917

WAFER FAB

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

MAX17261MEWL+T

PRODUCTION

pdf

pcn_1917

Companion Parts 3

Parts	Product Life Cycle	Description
Battery Fuel Gauge and Coulomb Counter1
MAX17049	PRODUCTION	3µA 1-Cell/2-Cell Fuel Gauge with ModelGauge
Battery ID and Authentication2
MAX17205	PRODUCTION	Stand-Alone ModelGauge m5 Fuel Gauge with SHA-256 Authentication
MAX17215	RECOMMENDED FOR NEW DESIGNS	Stand-Alone ModelGauge m5 Fuel Gauge with SHA-256 Authentication

MAX77963EVKIT

Evaluation Kit for MAX77963

Evaluation Kit for MAX77963

Download

MAX77963EVKIT

Evaluation Kit for MAX77963

Features and Benefits

Evaluates the MAX77963 USB Type-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries
Demonstrates 3.5V to 23V Input Operating Range
Demonstrates Charging Up to 3.2A
Demonstrates USB-OTG Functionality
Demonstrates JEITA Compliance with On-Board Dummy Thermistors
Demonstrates 8-Channel 12-Bit SAR ADC
Demonstrates Spread Spectrum
Fully Assembled and Tested
I²C Serial Interface

Buy Now View Details

Product Detail

The MAX77963 evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit board (PCB) that evaluates the MAX77963, a 3.2A USB Type-C^®buck-boost charger.

The MAX77963 EV kit includes the IC evaluation board with an integrated I²C-communication interface and USB micro-B cable. Windows^® based graphical-user interface (GUI) software is available for use with the EV kit and can be downloaded from Analog Devices website at www.analog.com/max77963evkit. Windows 7 or newer Windows operating system is required to use the EV kit software.

Resources

ZIP

MAX77963EVKIT Gerber Files

1.34 M

MAX17261GEVKIT

Evaluation Kit for the MAX17261

MAX17261GEVKIT

Evaluation Kit for the MAX17261

Features and Benefits

ModelGauge m5 Algorithm
Monitors from 2S+ Cell Packs
Battery Pack Input Voltage Range of +4.6V to +39.2V
Thermistor Measurement Network
Optional On-Board PCB Trace Sense Resistor
Windows 7 or Newer Compatible Software
Proven PCB Layout
Fully Assembled and Tested

Buy Now View Details

Product Detail

The MAX17261G/MAX17261X evaluation kits (EV kits) are fully assembled and tested surface-mount PCBs that evaluate the stand-alone ModelGauge™ m5 host-side fuel-gauge ICs for lithium-ion (Li+) batteries in handheld and portable equipment.

The MAX17261G/MAX17261X EV kits include the Maxim DS91230+ USB interface, IC evaluation board, and RJ-11 connection cable. Windows^®-based graphical user interface (GUI) software is available for use with the EV kits and can be downloaded from Maxim’s website at MAX17261 (under the Design Resources tab). Windows 7 or newer Windows operating system is required to use with the EV kit GUI software.

Applications