New Li+ fuel gauge IC features self-discharge protection

FUEL GAUGE New Li+ fuel gauge IC features self-discharge protection

10.12.2020 From Luke James

Related Vendors

PCIM Europe

Rogers Corporation

Diotec Semiconductor AG

AIC Europe GmbH

Finepower GmbH

more less

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

The MAX17320 fuel gauge IC.
(Source: Maxim Integrated)

The MAX17320 is a pack-side fuel gauge and protector IC for two to four series Lithium-ion (Li+) cells (2S-4S) in hand-held devices in computing, Internet of Things (IoT), power tool, consumer, healthcare, and mobile device applications. Maxim Integrated says that it’s the industry’s first to monitor self-discharge during operation while extending battery life.

The MAX17320 IC is part of a family of ICs that are equipped with Maxim’s patented ModelGauge m5 EX algorithm. The company claims that this is able to deliver 40 percent more accurate state-of-charge readings than those of their main competitors, eliminating the need for battery characterization for most common Li+ cells.

Figure 3: IoT development kits like ON Semiconductor's can simplify and accelerate concept development. (Bild: ON Semiconductor)

This fuel gauge IC also offers the industry’s lowest quiescent current, which is 85 percent lower than the closest competitor, and also features authentication to protect systems from counterfeit batteries.

How it works

The MAX17320 fuel gauge warns its host system of a leaky battery and disables it before a potentially hazardous situation can arise. This, claims Maxim Integrated, is in addition to the most advanced battery protection that enables the fine-tuning of voltage and current thresholds based on various temperature zones. The fuel gauge IC also provides a secondary protection scheme that permanently disables the battery by blowing a fuse under severe fault conditions.

According to Maxim Integrated, the MAX17320 fuel gauge IC can run in an ultra-low-power mode, allowing the system to read the state-of-charge instantly as it wakes up without being disconnected from the battery cells during storage or shipment.

The safest in the industry

“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 growth of the power electronics market is dominated by three factors: Renewable energies around the world, the increasing use of power electronics for the production of electric vehicles and the growing use of power electronics in consumer electronics. (Source: gemeinfrei)

Damle added that “ MAX17320 fuel gauge ICs provide additional safety by detecting internal leakage and preventing hazardous outcomes. It does this while simultaneously enhancing the user experience through the industry’s highest accuracy for 2S-4S Li+ battery-powered devices using Maxim Integrated’s ModelGauge m5 algorithm.”

“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.”

(ID:47034034)

Consent to the use of data for advertising purposes

I consent to the use of my email address to send editorial newsletters by Mesago Messe Frankfurt GmbH, Rotebühlstr. 83-85, 70178 Stuttgart, Germany including all of its affiliates within the meaning of Section 15 et seq. AktG (‘Mesago’). I have viewed lists of each group of affiliates here for the Mesago.
The content of the newsletter covers the products and services of all of the companies listed above including, for example, trade magazines and specialist books, events and exhibitions and event-related products and services, printed and digital media products and services such as additional (editorial) newsletters, competitions, lead campaigns, online and offline market research, technical web portals and e-learning courses. If my personal telephone number has also been collected, it may be used to send offers for the aforementioned products and services from the above companies, as well as for market research purposes.
If I wish to access protected content online on portals of Mesago including its affiliates within the meaning of Section 15 et seq. AktG, I must register with additional data in order to access that content. In return for this free access to editorial content, my data may be used in line with this declaration of consent for the purposes described herein.

Right to withdraw consent

I am aware that I can withdraw this consent at any time with future effect. My withdrawal of consent does not affect the lawfulness of processing performed based on my consent before its withdrawal. If I wish to withdraw my consent, I can send an email to Mesago at privacy@mesago.com. If I no longer wish to receive individual newsletters to which I have subscribed, I can also click on the unsubscribe link at the bottom of a newsletter. I can find more information on my right to withdraw, how to exercise this right and the consequences of my withdrawal in the Privacy policy Editorial newsletters section.

FUEL GAUGE New Li+ fuel gauge IC features self-discharge protection

How it works

The safest in the industry

Subscribe to the newsletter now

Don't Miss out on Our Best Content

Declaration of consent

Consent to the use of data for advertising purposes

Right to withdraw consent