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AAT3680 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT3680 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 18 page  AAT3680 Lithium-Ion Linear Battery Charge Controller 3680.2003.4.0.91 1 BatteryManager™ Typical Application Q1 FZT788B AAT3680 C2 10 µF C1 4.7 µF R2 1k RSENSE 0.2 Ω R1 2.5k BATT+ BATT- TEMP RT1 RT2 VP Battery Pack DRV CSI VP VP VSS STAT TS BAT T2X D1 General Description The AAT3680 BatteryManager™ is a member of AnalogicTech's Total Power Management IC™ family. This device is an advanced Lithium-Ion (Li- Ion) battery charge and management IC, specifi- cally designed for low cost compact portable appli- cations. In a single 8-pin package, the AAT3680 precisely regulates battery charge voltage and charge current. This device is capable of two trick- le charge current levels controlled by one external pin. Battery charge temperature and charge state are carefully monitored for fault conditions. In the event of an over current, short circuit or over tem- perature failure, the device will automatically shut down, thus protecting the charging device and the battery under charge. A battery charge state mon- itor output pin is provided to indicate the battery charge status though a display LED. The battery charge status output is a serial interface which may also be read by a system microcontroller. The AAT3680 is available in an 8-pin MSOP or 12- pin TSOPJW package, specified over -20 to 70°C range. Features • 4.5V to 15V Input voltage range • 1% Accurate Preset Voltages: 4.1V, 4.2V, 8.2V, 8.4V • Low operation current, typically 0.5mA • Programmable Charge Current • Automatic recharge sequencing • Battery temperature monitoring • Deep discharge cell conditioning • Fast trickle charge option with thermal over-ride • Full battery charge auto turn off / sleep mode • Over voltage, current and temperature protection • Power on reset • LED Charge Status Output or System Microcontroller serial interface • Temperature range -20 to 70°C • 8 pin MSOP, 12 pin TSOPJW package Applications • Cellular Phones • Personal Digital Assistants (PDA's) • Desktop Chargers • USB Chargers |
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