MAX17055ETB+T by Analog Devices

7µA 1-Cell Fuel Gauge with ModelGauge m5 EZ


The MAX17055 is a low 7μA operating current fuel gauge which implements Maxim ModelGauge™ m5 EZ algorithm. ModelGauge m5 EZ makes fuel gauge implementation easy by eliminating battery characterization requirements and simplifying host software interaction. The ModelGauge m5 EZ robust algorithm provides tolerance against battery diversity for most lithium batteries and applications. ModelGauge m5 EZ 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 MAX17055 automatically compensates for cell aging, temperature, and discharge rate, and provides accurate state of charge (SOC in %) and remaining capacity in milliampere-hours (mAh). As the battery approaches the critical region near empty, the ModelGauge m5 algorithm invokes a special error correction mechanism that eliminates any error. It also provides three methods for reporting the age of the battery: reduction in capacity, increase in battery resistance, and cycle odometer. The MAX17055 provides precision measurements of current, voltage, and temperature. Temperature of the battery pack is measured using an internal temperature measurement or external thermistor. A 2-wire I²C interface provides access to data and control registers. The MAX17055 is available in a lead-free, tiny 0.4mm Pitch 1.4mm x 1.5mm, 9-pin WLP package, and a 2mm x 2.5mm, 10-pin TDFN package. Design Solution: DS39-Choose the Right Battery Fuel Gauge for Fast Time-to-Market and Maximum Run-Time › Watch video ›

Where to Buy

Prices starting from US$1.26

Distributor Stock
Logo for Farnell
Farnell
from US$1.69
2,948
in stock
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Logo for Newark Electronics
Newark Electronics
from US$1.26
6,445
in stock
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Logo for element14
element14
from US$1.84
2,950
in stock
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Logo for Analog Devices
Analog Devices
from US$1.80
1,315
in stock
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Features

ModelGauge m5 EZ No Characterization Required for EZ Performance Robust Against Battery Variation Eliminates Error Near Empty Voltage Eliminates Coulomb Counter Drift Current, Temperature, and Age Compensated Does Not Require Empty, Full, or Idle States
No Characterization Required for EZ Performance
Robust Against Battery Variation
Eliminates Error Near Empty Voltage
Eliminates Coulomb Counter Drift
Current, Temperature, and Age Compensated
Does Not Require Empty, Full, or Idle States
Low 7µA Operating Current
Wide Sense Resistor Range 1mΩ to 1000mΩ PCB Metal Sensing + Temperature Compensation
1mΩ to 1000mΩ
PCB Metal Sensing + Temperature Compensation
Supports Li+ and Variants Including LiFePO4
±1°C Internal Temperature or Thermistor
Dynamic Power Estimates Power Capability During Discharge
Time-to-Empty and Time-to-Full Estimation Constant Power or Constant Current
Constant Power or Constant Current
Predicts Remaining Capacity Under Theoretical Load
Precision Measurement System No Calibration Required
No Calibration Required
Alert Indicator for Voltage, SOC, Temperature, Current, and 1% SOC Change

Specifications

Functions Fuel GaugeStatus Monitor
Battery Type 1 Cell Li-Ion
Fuel Gauge Algorithm ModelGauge m5
Interface 2-Wire
Parameters Measured CurrentState of ChargeTemperatureTimeVoltage
End Equipment HostPack
VSUPPLY (V) (min) 2.3
VSUPPLY (V) (max) 4.9
Package/Pins TDFN-CU/10WLP/9
Oper. Temp. (°C) -40 to +85
BudgetaryPrice (See Notes) 1.35


MAX17055ETB+T Semiconductors - ICs by Analog Devices

BATT FUEL GAUGE LIFEPO4/LI-ION TDFN-10

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Battery Management Function Fuel Gauge
Battery Type LiFePO4 Li-Ion
Supply Voltage Min 2.3V
Supply Voltage Max 4.9V
Battery IC Case Style TDFN
No. of Pins 10Pins
IC Interface Type I2C
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Batt Fuel Gauge, Lifepo4/Li-Ion, Tdfn-10 | Newark Electronics
BATT FUEL GAUGE, LIFEPO4/LI-ION, TDFN-10 | element14
Stand-Alone ModelGauge m5 Fuel | Analog Devices

Frequently Asked Questions

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Is the MAX17055ETB+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX17055ETB+T have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Analog Devices have stock available or on a lead time for MAX17055ETB+T .

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