Features and Benefits
- Host-Side or Battery-Side Fuel Gauging
- 1 Cell (MAX17043)
- 2 Cell (MAX17044)
- Precision Voltage Measurement
- ±12.5mV Accuracy to 5.00V (MAX17043)
- ±30mV Accuracy to 10.00V (MAX17044)
- Accurate Relative Capacity (RSOC) Calculated from ModelGauge Algorithm
- No Offset Accumulation on Measurement
- No Full-to-Empty Battery Relearning Necessary
- No Sense Resistor Required
- External Alarm/Interrupt for Low-Battery Warning
- 2-Wire Interface
- Low Power Consumption
- Tiny, Lead-Free, 8-Pin, 2mm x 3mm TDFN Package or Tiny 0.4mm Pitch 9-Bump UCSP Package
The MAX17043/MAX17044 are ultra-compact, low-cost, host-side fuel-gauge systems for lithium-ion (Li+) batteries in handheld and portable equipment. The MAX17043 is configured to operate with a single lithium cell and the MAX17044 is configured for a dual-cell 2S pack.
The MAX17043/MAX17044 use a sophisticated Li+ battery-modeling scheme, called ModelGauge™ to track the battery's relative state-of-charge (SOC) continuously over a widely varying charge/discharge profile. Unlike traditional fuel gauges, the ModelGauge algorithm eliminates the need for battery relearn cycles and an external current-sense resistor. Temperature compensation is possible in the application with minimal interaction between a µC and the device.
The IC can be located on the system side, reducing cost and supply chain constraints on the battery. Measurement and estimated capacity data sets are accessed through an I2C interface. The MAX17043/MAX17044 are available in either a 0.4mm pitch 9-bump UCSP™ or 2mm x 3mm, 8-pin TDFN lead-free package.
- Digital Still, Video, and Action Cameras
- Handheld Computers and Terminals
- Health and Fitness Monitors
- Smartphones, Tablets
- Wireless Speakers
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX17043 Reliability Data1/12/202329K
Battery Gauge | Maxim Integrated7/5/2012
Tutorial: Improve Sensor Performance and SNR in Pulse Oximeter Designs6/21/2010
Introduction to Spirometers and Important Design Considerations for Selecting Electrical Components5/10/2010
Blood Glucose Meters5/10/2010
Important Design Considerations for Heart-Rate and Fitness Monitors5/10/2010
Introduction to Hearing Aids and Important Design Considerations5/10/2010
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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