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AAT3691 - Dual Input 1.6A Linear Charger

General Description

The AAT3691 BatteryManager™ is an integrated single cell Lithium-Ion (Li-Ion) battery charger IC, designed to operate from USB ports, AC adapter inputs, or from a cellular phone charger adapter up to an input voltage of typical 6.75V.

Key Features

  • Dual Input USB and AC Adapter Input.
  • Programmable Constant Current from 100mA to 1.6A for ADP Charge.
  • Programmable Constant Current from 50mA to 0.5A for USB Charge.
  • No Battery Present Input Detection.
  • 3.0V ~ 6.75V (typical) Input Voltage Range.
  • Over-Voltage Input Protection up to 28V.
  • High Level of Integration with Internal:.
  • Power Device.
  • Reverse Current Blocking.
  • Current Sensing.
  • Automatic Recharge Sequencing.

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DATA SHEET AAT3691 Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package General Description The AAT3691 BatteryManager™ is an integrated single cell Lithium-...

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tion The AAT3691 BatteryManager™ is an integrated single cell Lithium-Ion (Li-Ion) battery charger IC, designed to operate from USB ports, AC adapter inputs, or from a cellular phone charger adapter up to an input voltage of typical 6.75V. For increased safety, The AAT3691 also includes over-voltage input protection (OVP) up to 28V. The AAT3691 precisely regulates battery charge voltage and current for 4.2V Li-Ion battery cells. The charge current can be programmed up to 1.6A for ADP charging and 0.5A for USB charging by external resistors on the ADPSET/USBSET pins. In the case of an over-voltage condition of ADP or USB in

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