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Details for MAX17055EWL+ by Maxim Integrated
Electronic & Electrical Components > Semiconductors - ICs > Battery Management
BATTERY FUEL GAUGE LI-ION WLP-9
MAX17055EWL+ image

MAX17055EWL+ by Maxim Integrated

BATTERY FUEL GAUGE LI-ION WLP-9
Features
1mu03a9 to 1000mu03a9
Alert Indicator for Voltage, SOC, Temperature,
Current, Temperature, and Age Compensated
Does Not Require Empty, Full, or Idle States
Dynamic Power Estimates Power Capability During Discharge
Eliminates Coulomb Counter Drift
Eliminates Error Near Empty Voltage
Low 7u03bcA Operating Current
No Calibration Required
No Characterization Required for EZ Performance
PCB Metal Sensing + Temperature Compensation
Precision Measurement System
Predicts Remaining Capacity Under Theoretical Load
Robust Against Battery Variation
Supports Li+ and Variants Including LiFePO4
Time-to-Empty and Time-to-Full Estimation
Wide Sense Resistor Range
u00b11u00b0C Internal Temperature or Thermistor
u200b Constant Power or Constant Current
Part Information
MAX17055EWL+ image
RoHS Compliant
Description
The MAX17055 is a low 7μA operating current fuel gauge that 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 com- pensates 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 compensa- tion that eliminates any error. It also provides three meth- ods for reporting the age of the battery: reduction in capac- ity, increase in battery resistance, and cycle odometer. The MAX17055 provides precision measurements of cur- rent, voltage, and temperature. Temperature of the battery pack is measured using an internal temperature mea- surement or external thermistor. A 2-wire I2C interface provides access to data and control registers. The MAX17055 is available in a tiny, lead-free 0.4mm pitch 1.4mm x 1.5mm, 9-pin WLP package, and a 2mm x 2.5mm, 10-pin TDFN package. Ordering Information appears at end of data sheet. ModelGauge is a trademark of Maxim Integrated Products, Inc. 19-8726; Rev 0; 1/17
Specifications
Battery Management Function:
Fuel Gauge
Battery Type:
Li-Ion
Supply Voltage Min:
2.3V
Supply Voltage Max:
4.9V
Battery IC Case Style:
WLP
No. of Pins:
9Pins
IC Interface Type:
I2C
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
RoHS Phthalates Compliant:
To Be Advised
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jan-2018)
Alternate Descriptions
BATTERY FUEL GAUGE, LI-ION, WLP-9; Battery Management Function:Fuel Gauge; Battery Type:Li-Ion; Supply Voltage Min:2.3V; Supply Voltage Max:4.9V; Battery IC Case Style:WLP; No. of Pins:9Pins; IC Interface Type:I2C; Operating RoHS Compliant: Yes Newark Electronics
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