MAX77972

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

GeneralDescription TheMAX77972isanautonomousintegratedFET chargerwithintegratedfuelgauge,UniversalSerialBus (USB)Type-CandBC1.2detection.TheMAX77972 supports4.5Vto13.7Vinputsandupto3.15Aof chargingcurrent.ChargecurrentandvoltageareI2C andpin-configurable

MAX77972

AccuCharge + ModelGauge 1-Cell Fuel Gauge and 3A Charger with Integrated USB Type-C Detection; Stand-Alone AccuCharge™ Buck Charger\n 13.7V Input Operating Voltage, up to 16V protection\n I2C or Resistor Configured Fast Charge Current 100mA to 3150mA\n I2C or Resistor Configured Charge Termination Voltage 3.4V to 4.66V\n I2C Programmable JEITA zones – 9 Automatic Temperature Charge Control Region\nPrequal and Step-Charging Options\n Fuel Gauge-Assisted Charge Termination\n 6A Peak Discharge Current\nOTG/Reverse Boost up to 5.1V, 1.5A\n Adaptive Input Current Limit (AICL)\n\n ModelGauge™ m5 EZ Algorithm\n Percent, Capacity, Age\n Cycle+™ \n Precision Measurement Without Calibration\n Current, Voltage, Time, Cycles\n Die Temperature and Thermistors\nIntegrated USB Detection\nCC Detection for USB Type-C\n BC1.2 Detection for Legacy SDP, DCP, and CDP\nAutomatic Input Current Limit Configuration\n OCV Keep-Out Region for Special Chemistry Cell;

The MAX77972 is an autonomous integrated FETcharger with integrated fuel gauge, Universal Serial Bus(USB) Type-C and BC1.2 detection. The MAX77972supports 4.5V to 13.7V inputs and up to 3.15A ofcharging current. Charge current and voltage are I2Cand pin-configurable using resistors. The IC supportsUSB On-The-Go (OTG) reverse boost and includes aSmart Power Selector™ (SPS), which is best for usinglimited adapter and battery power.\n\nThe fuel gauge uses the ModelGauge™ m5 algorithm,which provides industry-leading accuracy by combiningthe short-term accuracy and linearity of a coulombcounter with the long-term stability of a voltage-basedfuel gauge. ModelGauge m5 automatically compensatesfor cell aging, temperature, and discharge rate andprovides accurate state-of-charge (SOC) over a widerange of operating conditions.\n\nCharging is coordinated with the fuel gauge to provide9-temperature-region JEITA charge control as well asstep-charging. Other protection features include junctionthermal regulation, over/under voltage protection, andshort circuit protection.\n\nThe USB Type-C Configuration Channel (CC) detectionpins on the MAX77972 enable automatic USB Type-Cpower source detection and input current limitconfiguration. To support a variety of legacy USB typesas well as proprietary adapters, the IC also integratesBC1.2 detection using the D+ and D- pins. The IC runsthe CC pin and BC1.2 detection automatically as soonas a USB plug is inserted without any software control.\n\nThe IC is available in a lead-free 3.208mm x 3.258mm36-bump 0.5mm pitch Wafer-level packaging (WLP)package.

MAX77972EWX+

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

GeneralDescription TheMAX77972isanautonomousintegratedFET chargerwithintegratedfuelgauge,UniversalSerialBus (USB)Type-CandBC1.2detection.TheMAX77972 supports4.5Vto13.7Vinputsandupto3.15Aof chargingcurrent.ChargecurrentandvoltageareI2C andpin-configurable

MAX77972EWX+T

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

GeneralDescription TheMAX77972isanautonomousintegratedFET chargerwithintegratedfuelgauge,UniversalSerialBus (USB)Type-CandBC1.2detection.TheMAX77972 supports4.5Vto13.7Vinputsandupto3.15Aof chargingcurrent.ChargecurrentandvoltageareI2C andpin-configurable