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L62215CT-ND Datasheet(PDF) 1 Page - Skyworks Solutions Inc. |
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L62215CT-ND Datasheet(HTML) 1 Page - Skyworks Solutions Inc. |
1 / 18 page AAT3682 DATA SHEET Li-Ion/Polymer Linear Battery Charger 1 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201884B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012 General Description The AAT3682 is a lithium-ion/polymer linear battery charger. It is designed for compact portable applications with a single-cell battery. The AAT3682 precisely regu- lates battery charge voltage and charge current, and offers an integrated pass device, minimizing the number of external components required. The AAT3682 charges the battery in three different phases: preconditioning, constant current, and constant voltage. In preconditioning mode, the charge current has two different levels and is controlled by one external pin. Battery charge temperature and charge state are care- fully monitored for fault conditions. A battery charge stable monitor output pin is provided to indicate the bat- tery charge status through a display LED or interface to a system controller. The AAT3682 has a sleep mode option for when the input supply is removed. In this mode, it draws only 2.0μA of typical current. The AAT3682 is available in a Pb-free, 16-pin QFN44 package and is specified over the -20°C to +70°C tem- perature range. Features • VIN Range: 4.7V to 6.0V • Low Quiescent Current, Typically 0.5mA • 1% Accurate Preset Voltage • Up to 1A of Charging Current • Integrated Pass Device • Battery Temperature Monitoring • Fast Trickle Charge Option • Deep Discharge Cell Conditioning • LED Charge Status Output or System Microcontroller Serial Interface • Power-On Reset • Lower Power Sleep Mode • Status Outputs for LED or System Interface Indicates Charge and Fault Conditions • Temperature Range: -20°C to +70°C • 16-Pin QFN44 Package Applications • Cellular Telephones • Digital Still Cameras • Hand-Held PCs • MP3 Players • Personal Data Assistants (PDAs) Typical Application VP Gate DRV CSI VCC VSS BAT T2X BSENSE TS STAT R SENSE C IN = 10μF C OUT = 1μF LED 1 R 2 = 1K BATT+ BATT- R T1 VP R T2 TEMP Adapter R 4 R 3 |
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