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New Highly Accurate Battery Pack Controller
Maxim has released a new battery pack controller that offers many outstanding features.
Maxim Integrated
Products introduces the MAX1780 advanced battery-pack
controller. The MAX1780 is a smart battery-pack supervisor that
integrates a user-programmable microcontroller core,
coulomb-counter-based fuel gauge, multichannel data-acquisition
unit, high-speed SPI interface, and master/slave SMBus interface.
The 8-bit, RISC, microcontroller core is user-programmable, and
provides battery-pack designers with complete flexibility in
developing fuel gauging and control algorithms.
The data-acquisition unit can measure individual cell voltages to
within 50mV, total battery-stack voltage (up to 20.48V), and
internal/external chip temperature. This, along with the
user-adjustable overcurrent comparators, allows the MAX1780 to
eliminate a separate primary pack protection IC. The MAX1780 is a
high-voltage IC that can be directly connected to 2- to 4-series
lithium ion cells and supplies itself through a fully integrated
3.4V low-dropout linear regulator. By achieving a high level of
integration and eliminating a separate primary protection IC and
linear regulator, the MAX1780 helps achieve the smallest and most
advanced programmable solution.
The company's Web site address is http://www.maxim-ic.com/.
[Reprinted with kind permission from Maxim]
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