Features: • USB or AC Adapter System Power Charger▪ Programmable from 15mA to 500mA• 4.0V ~ 6.5V Input Voltage Range• High Level of Integration with Internal:▪ Charging Device▪ Reverse Blocking Diode• Automatic Current Sensing• Automatic Recharge Seq...
AAT3684: Features: • USB or AC Adapter System Power Charger▪ Programmable from 15mA to 500mA• 4.0V ~ 6.5V Input Voltage Range• High Level of Integration with Internal:▪ Charging...
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Symbol | Description | Value | Units |
VP | ADP Continuous | -0.3 to 7.5 | V |
VN | BAT, STAT, ISET, EN | -0.3 to VP + 0.3 | V |
TJ | Operating Junction Temperature Range | -40 to 150 | |
TLEAD | Maximum Soldering Temperature (at Leads) | 300 |
The AAT3684 BatteryManager is an integrated single cell lithium-ion/polymer battery charger IC, designed to operate from a DC power source or USB port up to an input voltage of 6.5V. It requires just one external component.
The AAT3684 precisely regulates battery charge voltage and current for 4.2V (4.375V option) lithium-ion/polymer battery cells. When charged from an AC adapter or USB port, the battery charging current can be set by an external resistor up to 500mA.
Battery charge state is continuously monitored for fault conditions. In the event of an over-voltage, short-circuit, or over-temperature failure, the AAT3684 device will automatically shut down, thus protecting the charging device, control system, and the battery under charge. A status monitor output pin is provided to indicate the battery charge status by directly driving an external LED.
The AAT3684 is available in a Pb-free, thermally enhanced, space-saving 10-pin 2.2x2.2mm STDFN package and is specified for operation over the -40 to +85 temperature range.