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Maxim Releases Industry’s First Li+ Fuel Gauge IC

Maxim Integrated has introduced MAX17320 high-accuracy fuel-gauge and protection circuit that extends run-time on multi-cell battery-powered products while also monitoring against self-discharge hazards.

 

Maxim Integrated has introduced MAX17320“It is important to ensure consumer safety for portable Li+ devices,” said Kevin Anderson, practice leader at Omdia. “Providing multiple levels of battery protection and safeguarding from counterfeit products will help designers prove their safety claims for their brands.”

 

“Maxim Integrated’s fuel gauge ICs are the industry’s safest and most accurate,” said Bakul Damle, business management director, Mobile Power Business Unit at Maxim Integrated. “The MAX17320 ICs provide additional safety by detecting internal leakage and preventing potentially hazardous outcomes while enhancing the user experience through the industry’s highest accuracy for 2S-4S Li+ battery-powered devices using Maxim Integrated’s ModelGauge m5 algorithm.” 

 

The MAX17320 is a pack-side fuel gauge and protector IC for 2 to 4 series Lithium-ion (Li+) cells (2S-4S) and is part of a family of ICs equipped with Maxim Integrated’s patented ModelGauge m5 EZ algorithm that delivers 40 percent more accurate state-of-charge (SOC) readings than competitive offerings, eliminating the need for battery characterization for most common Li+ cells.

 

This fuel gauge also offers the industry’s lowest quiescent current (IQ), which is 85 percent lower than the nearest competitor and features SHA-256 authentication to safeguard systems from counterfeit batteries. 

 

The MAX17320 warns the system and disables a leaky battery before a potentially hazardous outcome. This is in addition to the most advanced battery protection that uniquely allows fine-tuning of voltage and current thresholds based on various temperature zones. The IC also provides a secondary protection scheme that permanently disables the battery by assisting a secondary protector or blowing a fuse in severe fault conditions.

 

The MAX17320 can run in an ultra-low-power mode, enabling the system to read the SOC instantly as it wakes up without being disconnected from the battery cells during shipment or when stored on the shelf. With the lowest IQ in the industry at 85 percent lower than the leading competitor, the MAX17320 supports a longer product shelf life.

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Aishwarya Saxena

A book geek, with creative mind, an electronics degree, and zealous for writing.Creativity is the one thing in her opinion which drove her to enter into editing field. Allured towards south Indian cuisine and culture, love to discover new cultures and their customs. Relishes in discovering new music genres.

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