MAX17047/MAX17050 1-Cell Fuel Gauge with ModelGauge m3 General Description Features The MAX17047/MAX17050 incorporate the Maxim Accurate Battery-Capacity and Time-To-Empty ModelGauge m3 algorithm that combines the excellent Estimation short-term accuracy and linearity of a coulomb counter Temperature, Age, and Rate Compensated with the excellent long-term stability of a voltage-based fuel Does Not Require Empty, Full, or Idle States to gauge, along with temperature compensation to provide Maintain Accuracy industry-leading fuel-gauge accuracy. ModelGauge m3 Precision Measurement System cancels offset accumulation error in the coulomb counter, No Calibration Required while providing better short-term accuracy than any purely ModelGauge m3 Algorithm voltage-based fuel gauge. Additionally, the ModelGauge Long-Term Influence by Voltage Fuel Gauge m3 algorithm does not suffer from abrupt corrections that Cancels Coulomb-Counter Drift normally occur in coulomb-counter algorithms, since tiny Short-Term Influence by Coulomb Counter continual corrections are distributed over time. Provides Excellent Linearity The device automatically compensates for aging, temper- Adapts to Cell Characteristics ature, and discharge rate and provides accurate state of External Temperature-Measurement Network charge (SOC) in mAh or %, as well as time-to-empty over Actively Switched Thermistor Resistive Divider a wide range of operating conditions. The device provides Reduces Current Consumption two methods for reporting the age of the battery: reduction Low Quiescent Current in capacity and cycle odometer. 25A Active, < 0.5A Shutdown The device provides precision measurements of current, voltage, and temperature. Temperature of the battery Alert Indicator for SOC, Voltage, Temperature, and pack is measured using an external thermistor supported Battery Removal/Insertion Events by ratiometric measurements on an auxiliary input. A AtRate Estimation of Remaining Capacity 2 2-wire (I C) interface provides access to data and control 2 2-Wire (I C) Interface registers. The MAX17047 is available in a lead(Pb)-free, 3mm x 3mm, 10-pin TDFN package. The MAX17050 is Tiny, Lead(Pb)-Free, 3mm x 3mm, 10-Pin TDFN available in a 0.4mm pitch 9-bump WLP package. Package or Tiny 0.4mm Pitch 9-Bump WLP Package Applications Smartphones, Tablets Medical Devices Health and Fitness Handheld Computers Ordering Information appears at end of data sheet. Monitors and Terminals Digital Still, Video and Wireless Speakers Action Cameras Simple Fuel-Gauge Circuit Diagram BATTERY PACK SYSTEM V TT PK+ (MAX17047 ONLY) V BATT ALRT THRM SDA HOST OPTIONAL MAX17047 P 10k MAX17050 T AIN SCL REG OPTIONAL PROTECTION 10k CSP EP CSN OPTIONAL 0.1F 0.1F NTC 10nF 10m THERMISTOR RSNS PK- ModelGauge is a trademark of Maxim Integrated Products, Inc. 19-6008 Rev 7 11/16MAX17047/MAX17050 1-Cell Fuel Gauge with ModelGauge m3 Absolute Maximum Ratings V , SDA, SCL, ALRT to CSP ............................-0.3V to +6V Continuous Power Dissipation (T = +70C) BATT A REG to CSP .........................................................-0.3V to +2.2V TDFN (derate 24.4mW/C above +70C) ...............1951.2mW V to CSP ..............................................................-0.3V to +6V WLP (derate 11.9mW/C above +70C) ...................952.0mW TT THRM, AIN to CSP ....................................-0.3V to (V + 0.3V) Operating Temperature Range ........................... -40C to +85C TT CSN to CSP ...............................................................-2V to +2V Junction Temperature ......................................................+150C Continuous Sink Current (V ) ..........................................20mA Storage Temperature Range ............................ -55C to +125C TT Continuous Sink Current (SCL, SDA, ALRT) .....................20mA Lead Temperature (soldering 10s) ..................................+300C Soldering Temperature (reflow) .......................................+260C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. (Note 1) Package Thermal Characteristics TDFN WLP Junction-to-Ambient Thermal Resistance ( ) ..........41C/W Junction-to-Ambient Thermal Resistance ( ) ..........84C/W JA JA Junction-to-Case Thermal Resistance ( ) .................9C/W JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (V = 2.5V to 4.5V, T = -20C to +70C, unless otherwise noted. Typical values are at T = +25C.) (Note 2) BATT A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V (Note 3) 2.5 4.5 V BATT I Shutdown mode, T +50C 0.5 2 DD0 A Supply Current A I Active mode, average current 25 42 DD1 REG Regulation Voltage V 1.5 1.9 V REG T = +25C -7.5 +7.5 A Measurement Error, V V mV BATT GERR -20 +20 Measurement Resolution, V V 0.625 mV BATT LSb V Measurement Range V 2.5 4.98 V BATT FS Input Resistance CSN, AIN 15 M Ratiometric Measurement T -0.5 +0.5 % GERR Accuracy, AIN Ratiometric Measurement % Full T 0.0244 LSb Resolution, AIN Scale Current Register Resolution I 1.5625 V LSb Current Full-Scale Magnitude I 51.2 mV FS Current Offset Error I 1.5 V OERR % of Current Gain Error I -1 +1 GERR Reading V = 3.6V at T = +25C -1 +1 DD A Time-Base Accuracy t T = 0C to +50C -2.5 +2.5 % ERR A T = -20C to +70C -3.5 +3.5 A Maxim Integrated 2 www.maximintegrated.com