Chargers offer battery detection, overvoltage protection.
September 2, 2009 -
Respectively offered in 3 x 3 mm, 14-pin TDFN and 12-pin TQFN packages, MAX8844 and MAX8845 are 28 V, dual-/single-input, linear Li+ battery chargers with battery detection and overvoltage-protected outputs. Ability to provide resistor-adjustable fast-charge and top-off current thresholds promotes flexibility, which is further extended by auto-booting assistant circuit. While MAX8844 has 2 overvoltage-protected LDO outputs, MAX8845 has one overvoltage-protected LDO output.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Maxim Integrated Products
120 San Gabriel Dr.
Sunnyvale, CA, 94086
USA
Highly Flexible, 28V, Dual-/Single-Input Battery Chargers with Battery Detection and Overvoltage-Protected Outputs
Dual-/single-input, linear Li+ battery chargers for cell phones and smartphones.
SUNNYVALE, CA-August 20, 2009-Maxim Integrated Products (NASDAQ:MXIM) introduces the MAX8844/MAX8845 28V, dual-/single-input, linear Li+ battery chargers with battery detection and overvoltage-protected outputs. These devices enhance flexibility by providing resistor-adjustable fast-charge and top-off current thresholds. To further increase flexibility, an autobooting assistant circuit distinguishes input sources and battery connection, and also provides an enable signal for system booting. The MAX8844/MAX8845 are ideal for space-constrained applications such as cell phones and smartphones.
The MAX8844 has two overvoltage-protected LDO outputs for supplying low-voltage-rated USB or charger inputs, while the MAX8845 has a single overvoltage-protected LDO output. This integration eliminates the need for external overvoltage-protection ICs. Both devices integrate a battery-pack detection circuit that disables the charger when the battery pack is absent.
The MAX8844 is packaged in a 3mm x 3mm, 14-pin TDFN, while the MAX8845 is available in a 3mm x 3mm, 12-pin TQFN package. Prices start at $1.42 (1000-up, FOB USA). User-friendly evaluation kits are available to speed designs.
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 6000 products serving the industrial, communications, consumer, and computing markets.
Maxim reported revenue in excess of $1.6 billion for fiscal 2009. 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.
Customer Service: 1-800-998-8800
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