MAX77972

RECOMMENDED FOR NEW DESIGNS

AccuCharge + ModelGauge 1-Cell Fuel Gauge and 3A Charger with Integrated USB Type-C Detection

Industry’s Highest Accuracy Fuel Gauge integrated with USB-C Charger

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.86

Viewing:

Part Details

Stand-Alone AccuCharge™ Buck Charger
- 13.7V Input Operating Voltage, up to 16V protection
- I²C or Resistor Configured Fast Charge Current 100mA to 3150mA
- I²C or Resistor Configured Charge Termination Voltage 3.4V to 4.66V
- I²C Programmable JEITA zones – 9 Automatic Temperature Charge Control Region
- Prequal and Step-Charging Options
- Fuel Gauge-Assisted Charge Termination
- 6A Peak Discharge Current
- OTG/Reverse Boost up to 5.1V, 1.5A
- Adaptive Input Current Limit (AICL)

ModelGauge™ m5 EZ Algorithm
- Percent, Capacity, Age
- Cycle+™
Precision Measurement Without Calibration
- Current, Voltage, Time, Cycles
- Die Temperature and Thermistors
Integrated USB Detection
- CC Detection for USB Type-C
- BC1.2 Detection for Legacy SDP, DCP, and CDP
- Automatic Input Current Limit Configuration
OCV Keep-Out Region for Special Chemistry Cell

Part Models: 2
1ku List Price: Starting From $1.86

Documentation

Data Sheet 1

MAX77972: AccuCharge + ModelGauge 1-Cell Fuel Gauge and 3A Charger with Integrated USB Type-C Detection Data Sheet (Rev.1) 01/27/2025

User Guide 2

MAX77972 Software Implementation Guidelines (Rev.0) 05/13/2024

MAX77972EVKIT User Guide: Evaluation Board User Guide for MAX77972 (Rev.0) 05/13/2024

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
MAX77972EWX+	36-WLCSP-N/A	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX77972EWX+T	36-WLCSP-N/A	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

Evaluation Software 1

MAX77972EVKIT GUI Setup

Hardware Ecosystem

Parts	Product Life Cycle	Description
MAX77818	PRODUCTION	Dual Input, Power Path, 3A Switching Mode Charger with Fuel Gauge

Evaluation Kits

Evaluation Kit for MAX77972

Buy Now View Details

Features and Benefits

Stand-Alone AccuCharge™ Buck Charger
- 13.7V Input Operating Voltage, up to 16V protection
- I²C or Resistor Configured Fast Charge Current 100mA to 3150mA
- I²C or Resistor Configured Charge Termination Voltage 3.45V to 4.5V
ModelGauge m5 EZ Algorithm
- Percent, Capacity, Time-to-Empty/Full, Age
- Cycle+™ Age Forecast
Full Protection Solution On-Board for Evaluation
Precision Measurement Without Calibration
On-Board I²C Communication Interface with Built-In MAXUSB Interface
Integrated USB Detection
Windows 7 or Newer Compatible Software
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX77972 evaluation kit (EV kit) is a fully assembled and tested surface-mount Printed Circuit Board (PCB) that evaluates the autonomous integrated FET charger with an integrated fuel gauge, Universal Serial Bus (USB) Type-C, and BC1.2 detection.

The EV kit includes the IC evaluation board with an integrated I²C 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 the https://www.analog.com/products/MAX77972 product page under the Design Resources tab. Windows 7 or newer Windows operating system is required to use with the EV kit GUI software.