MAX17058
1-Cell/2-Cell Fuel Gauge with ModelGauge
Maximize Battery Run Time with Industry's Smallest Size Fuel Gauges that Eliminate a Current-Sense Resistor
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Key Features
Applications/Uses
| Functions | Fuel Gauge |
| Battery Type | 1 Cell Li-Ion |
| Fuel Gauge Algorithm | ModelGauge |
| Interface | 2-Wire |
| Parameters Measured | State of Charge Voltage |
| End Equipment | Host |
| VSUPPLY (V) (min) | 2.5 |
| VSUPPLY (V) (max) | 4.5 |
| Package/Pins | TDFN/8 WLP/8 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 0 |
Simplified Block Diagram
Technical Docs
| Data Sheet | 1-Cell/2-Cell Fuel Gauge with ModelGauge | Dec 12, 2016 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.
Parameters
| Functions | Fuel Gauge |
| Battery Type | 1 Cell Li-Ion |
| Fuel Gauge Algorithm | ModelGauge |
| Interface | 2-Wire |
| Parameters Measured | State of Charge Voltage |
| End Equipment | Host |
| VSUPPLY (V) (min) | 2.5 |
| VSUPPLY (V) (max) | 4.5 |
| Package/Pins | TDFN/8 WLP/8 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 0 |
Key Features
- MAX17058: 1 Cell, MAX17059: 2 Cells
- Precision ±7.5mV/Cell Voltage Measurement
- ModelGauge Algorithm
- Provides Accurate State-of-Charge
- Compensates for Temperature/Load Variation
- Does Not Accumulate Errors, Unlike Coulomb Counters
- Eliminates Learning
- Eliminates Current-Sense Resistor
- Low Quiescent Current: 23µA
- Battery-Insertion Debounce
- Best of 16 Samples Estimates Initial SOC
- Programmable Reset for Battery Swap
- 2.28V to 3.48V Range
- Low SOC Alert Indicator
- I2C Interface
Applications/Uses
- Digital Still, Video, and Action Cameras
- Handheld Computers and Terminals
- Health and Fitness Monitors
- Medical Devices
- Smartphones, Tablets
- Wireless Speakers
Description
The MAX17058/MAX17059 ICs are tiny fuel gauges for lithium-ion (Li+) batteries in handheld and portable equipment. The MAX17058 operates with a single Li+ cell and the MAX17059 with two Li+ cells in series.
The ICs use the sophisticated Li+ battery-modeling algorithm ModelGauge™ to track the battery relative state-of-charge (SOC) continuously over a widely varying charge/discharge conditions. The ModelGauge algorithm eliminates current-sense resistor and battery-learn cycles required by other fuel gauges. Temperature compensation is implemented using the system micro-controller.
On battery insertion, the ICs debounce initial voltage measurements to improve the initial SOC estimate, allowing them to be located on system side. SOC and voltage information is accessed using the I2C interface. The ICs are available in a tiny 0.9mm x 1.7mm, 8-bump wafer-level package (WLP) or a 2mm × 2mm, 8-pin TDFN package.
Technical Docs
| Data Sheet | 1-Cell/2-Cell Fuel Gauge with ModelGauge | Dec 12, 2016 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.
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