LTC4085-1
FEATURES
USB Power Manager with Ideal Diode Controller and
4.1V Li-Ion Charger
DESCRIPTIO
- Seamless Transition Between Input Power Sources: Li-Ion Battery, USB and 5V Wall Adapter
- 215mΩ Internal Ideal Diode Plus Optional External Ideal Diode Controller Provide Low Loss Power Path TM When Wall Adapter/USB Input Not Present
- Load Dependent Charging Guarantees Accurate USB Input Current pliance
- 4.1V Float Voltage Improves Battery Life Span and High Temperature Safety Margin
- Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charging Rate Without Risk of Overheating-
- Selectable 100% or 20% Input Current Limit (e.g., 500m A/100m A)
- Battery Charge Current Independently Programmable Up to 1.2A
- Preset 4.1V Charge Voltage with 0.8% Accuracy
- C/10 Charge Current Detection Output
- Tiny (4mm × 3mm × 0.75mm) 14-Lead DFN Package
U APPLICATIO S
- Portable USB Devices: Cameras, MP3 Players, PDAs
, LT, LTC and LTM are registered trademarks of Linear Technology...
