MAX17261
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MAX17261

5.1µA Multi-Cell Fuel Gauge with ModelGauge m5 EZ

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

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
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
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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
Part Models 4
1ku List Price Starting From $1.61

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX17261METD+
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MAX17261METD+T
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MAX17261MEWL+
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MAX17261MEWL+T
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Product Lifecycle

PCN

Feb 21, 2019

- 1917

WAFER FAB

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

MAX17261MEWL+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Feb 21, 2019

- 1917

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WAFER FAB

MAX17261METD+

PRODUCTION

MAX17261METD+T

PRODUCTION

MAX17261MEWL+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

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MAX17261GEVKIT

Evaluation Kit for the MAX17261

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MAX17261GEVKIT

Evaluation Kit for the MAX17261

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

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

  • 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
reference details image

MAX17261XEVKIT

Evaluation Kit for the MAX17261

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MAX17261XEVKIT

Evaluation Kit for the MAX17261

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

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

  • 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
reference details image

MAX77963EVKIT

Evaluation Kit for MAX77963

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MAX77963EVKIT

Evaluation Kit for MAX77963

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

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.

Reference Designs

Reference Designs 1

MAXREFDES1260

Li Battery Charger and Monitor System with 3A USB-C Input

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MAXREFDES1260

Li Battery Charger and Monitor System with 3A USB-C Input

Li Battery Charger and Monitor System with 3A USB-C Input

Features and Benefits

  • Proven PCB Layout
  • Full Assembled and Tested
  • Monitors from 2S Cell Packs
  • Windows 10 Compatible Software
  • I2C serial interface Applications
  • Tablets, Two-in-One Laptops
  • Digital Imaging (DSC, DVC)
  • USB Type-C Two-Cell Pack Equipment
View Detailed Reference Design external link

Design & Integration Tools

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