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Date: 04-04-13

Smart battery charge IC adapts to the adapter type

Maxim Integrated Products is sampling the smart Li+ battery charger IC MAX77301. MAX77301 automatically identify the adapter type, and then determine the fastest rate to charge a battery. With advanced temperature monitoring, the MAX77301 modulates the charge current and battery regulation voltage automatically to maximize safety in any temperature environment. The MAX77301 is suggested as ideal IC for mobile equipment such as cameras, Bluetooth headsets, MP3 players, and portable medical devices.

This device relieve the mobile device used worrying from charging conditions normally recommended by the mobile device vendor. MAX77301 takes care of charging by automatically setting charge parameters at a safe level, without using external microcontroller. The device also provides full programmability via the I2C interface.

Key Advantages as explained by Maxim:
Maximizes charge current: automatically detects charge source and sets the highest allowable charge current.
Optimizes user convenience: Smart Power Selector™ technology allows a portable device to operate with a discharged battery or no battery.
Highly flexible: fully programmable I2C interface; charges from a USB port.
Easy implementation: no extra software required for charger detection or USB enumeration.
Industry Commentary
“With its integrated intelligence, the MAX77301 is a perfect fit for devices that do not have application processors but need to charge quickly. This includes cameras, Bluetooth headsets, and medical devices,” said Sam Toba, Director of Mobility Business Management at Maxim Integrated.
“The majority of growth in the battery management IC market is projected to be driven by transitions to lithium battery technologies, particularly in applications that demand longer battery life but with faster charging cycles,” said Ryan Sanderson, Associate Director of Power Management and Conversion at IHS. “Being able to provide this safely is critical to the speed of adoption.”

Availability and Pricing:
Available in a 25-bump, 2.44mm x 2.44mm wafer-level package (WLP).
Pricing starts at $2.22 (1000-up, FOB USA).

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