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AAT3670

ANALOGICTECH
Part Number AAT3670
Manufacturer ANALOGICTECH
Description Dynamic Battery Charger and Power Manager
Published Jun 4, 2007
Detailed Description 1.6A Dynamic Battery Charger and Power Manager General Description The AAT3670 BatteryManager is a highly integrated sin...
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AAT3670
AAT3670

Overview
1.
6A Dynamic Battery Charger and Power Manager General Description The AAT3670 BatteryManager is a highly integrated single-cell lithium-ion/polymer (Li-ion) battery charger and system power management IC that enables simultaneous battery charging and full system usage without compromising the battery's charge cycle life.
It operates with low-voltage AC adapter (ADP) and USB inputs and requires a minimum number of external components.
The AAT3670 selects ADP or USB to power the system load and charge the battery when ADP/USB power is available.
The AAT3670 precisely regulates battery charge voltage and current for 4.
2V Li-ion cells.
Charge current can be programmed up to 1.
6A for ADP charging and 0.
9A or 0.
1A for USB charging by resistors on the ADPSET/ USBSET pins.
The charge termination current threshold is set by an external resistor on the TERM pin.
The AAT3670 has a voltage-sensed charge current reduction loop that enables system operation without a power shortage.
When the input ...


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