Battery Charger ICs are programmable via SMBus(TM).
Press Release Summary:
Respectively capable of operating at 850 and 500 kHz, MAX17435/MAX17535 come in 4 x 4 mm, 24-pin TQFN package with exposed backside pad and suit battery-powered applications where space is critical. SMBus interface enables programming of charge current, charge voltage, input current limit, relearn voltage, and digital IINP voltage readback settings without changing external components. Both ICs provide ±0.4% battery voltage accuracy, and charge-current accuracy is ±3%.
Original Press Release:
Highly Integrated, 850kHz/500kHz SMBus-Programmable Battery Chargers
The SMBus interface of Maxim's new battery chargers permits programming of the charge current, charge voltage, input current limit, relearn voltage, and digital IINP voltage readback.
SUNNYVALE, CA-Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX17435/MAX17535, highly integrated SMBus(TM) battery chargers capable of operating at 850kHz and 500kHz, respectively. The SMBus interface enables programming of the charge settings without changing external components, thus maximizing design flexibility. Programmable settings include charge current, charge voltage, input current limit, relearn voltage, and digital IINP voltage readback. Equivalent competitive solutions require the use of external components to program charge settings. The MAX17435/MAX17535 are ideal for notebook computers, ultra-mobile PCs (UMPCs), mobile internet devices (MIDs), and other battery-powered applications where space is critical.
The MAX17435/MAX17535 provide ±0.4% battery-voltage accuracy. Low-offset current-sense amplifiers deliver ±3% charge-current accuracy using 10milohm sense resistors. An internal charge pump drives the adapter n-channel MOSFETs when the adapter is present, and a p-channel MOSFET selects the battery in the absence of an adapter.
The MAX17435/MAX17535 are available in a space-saving, 4mm x 4mm, 24-pin TQFN package with an exposed backside pad. They are fully specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range. Prices start at $6.43 (1000-up, FOB USA). An evaluation kit is available with recommended external components to reduce design time.
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6400 products serving the industrial, communications, consumer, and computing markets.
Maxim reported revenue of approximately $2.0 billion for fiscal 2010. A Fortune 1000 company, Maxim is included in the Nasdaq 100, the Russell 1000, and the MSCI USA indices. For more information, go to www.maxim-ic.com.
SMBus is a trademark of Intel Corp.
DATA SHEET: A Data Sheet for these products is available on the web.
http://www.maxim-ic.com/MAX17435
