Maxim Integrated's 12/16-Channel Analog Front-Ends (AFEs) Double Accuracy While Reducing Battery-Management Systems Cost by up to 35%

High-accuracy AFEs integrate simultaneous cell voltage sampling to improve state-of-charge prediction and maximize battery pack longevity.

SAN JOSE, Calif., April 24, 2013 — (PRNewswire) —  Maxim Integrated Products, Inc. (NASDAQ: MXIM) announced it is sampling the MAX14920/MAX14921, high-accuracy, 12/16-channel cell-measurement analog front-ends ( AFEs) that lower battery-management electronics costs by up to 35%. These devices double the accuracy of cell voltage readings through the use of high-accuracy common-mode level shifting and an integrated high-precision amplifier that simplifies ADC data conversion.

Higher accuracy improves state-of-charge determination and cell balancing that in turn lengthen the life of rechargeable Lithium-ion (Li+) battery packs and maximize available energy, especially important for modern battery chemistries that exhibit flat voltage discharge curves, such as those with LiFePO4 cathodes. The MAX14920/MAX14921 enable the industry's highest accuracy cell voltage measurements (±0.5mV, max). Ideal for 48V to 65V pack voltages required in uninterruptible power-supply (UPS) systems, smart grid energy-storage packs, and telecom power backup-battery packs, the MAX14921 eliminates up to two 6-channel AFEs required for 13S-16S channel battery packs.

Key Features

  • Highest accuracy: increases individual cell accuracy; improves cell balancing.
  • Lower cost: one chip supports battery management of up to 16 cell packs.   
  • Flexible solution: suitable for use in both lower cost applications (using the ADC integrated in a microcontroller) and higher accuracy applications (utilizing an external ADC).

Commentary:

  • "We strategically integrated only the cell voltage sampling and a high precision amplifier to optimize accuracy, while also enabling system flexibility," said Tim Leung, Business Manager at Maxim Integrated. "With a flexible battery-management system (BMS) design that can be reused from 3 to 16 channels, we enable optimized front-end solutions based on individual system requirements and cost. This also provides a time-to-market advantage."
  • "Battery management solutions are growing 10% a year due to the need for secure power for cloud servers. Maxim's new solution fills a need for that market where cost and time to market is becoming more important," said Susie Inouye, Research Director at Databeans, a market research firm tracking power management.

Availability, Pricing, and Temperature Range:

MAX14920

  • Available in a 64-pin (10mm x 10mm) TQFP package.
  • Pricing starts at $5.04 (1000-up, FOB USA).

MAX14921

  • Available in an 80-pin (12mm x 12mm) TQFP package.
  • Pricing starts at $6.15 (1000-up, FOB USA).

Both devices operate over the -40°C to +85°C extended temperature range.

For additional information and design resources, please click here. For a hi-res image, click here.

About Maxim Integrated
At Maxim Integrated, we put analog together in a way that sets our customers apart. In Fiscal 2012, we reported revenues of $2.4 billion.


Follow Maxim Integrated on Twitter at https://twitter.com/Maxim_IC and on Facebook at http://www.facebook.com/Maxim.IC.

Contact:

Ferda Millan


(408) 601-5429


ferda.millan@maximintegrated.com

SOURCE Maxim Integrated Products, Inc.

Contact:
Maxim Integrated Products, Inc.
Web: http://www.maxim-ic.com




Review Article Be the first to review this article
Aldec Webinar Nov 30

Featured Video
Editorial
Peggy AycinenaWhat Would Joe Do?
by Peggy Aycinena
Computer History Museum: the Future of War is Here
More Editorial  
Jobs
Principal PIC Hardware Controls Engineer for Infinera Corp at Sunnyvale, CA
Senior SW Developer for EDA Careers at San Jose, CA
ASIC Design Engineer for Infinera Corp at Sunnyvale, CA
Senior PIC Test Development Engineer for Infinera Corp at Sunnyvale, CA
REVISED***Director Product Line RF/IC for EDA Careers at San Jose, CA
Upcoming Events
“Empowering Leadership with WIT and WISDOM” at SEMI 673 South Milpitas Blvd. Milpitas CA - Nov 28, 2017
Artificial Intelligence and Convolution Neural Networks Discussion at San Jose State University Student Union Theater San Jose CA - Dec 4, 2017
Silicon Valley's Only Comprehensive Embedded Systems Conference at San Jose Convention Center 150 W. San Carlos St. San Jose CA - Dec 5 - 7, 2017
Oski Technology’s Decoding Formal Club Meeting at The Conference Center San Jose CA - Dec 7, 2017



Internet Business Systems © 2017 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise