LTC4059EDC#TRMPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	--
Fault Protection:	--
Charge Current - Max:	900mA
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	8V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	6-WFDFN Exposed Pad
Supplier Device Package:	6-DFN (2x2)
Base Part Number:	LTC4059

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The LTC4059EDC# TRMPBF is a single cell lithium ion battery charger with input current limiting. It has an adjustable output current, fast charge termination and programmable input current limit with power path management. The battery charger is designed to charge low voltage Li+ cells with a wide range of chemistries, including LiFePO4, LiFePO4NiMgCO2, LiCoO2 and LiNiMnCoO2.The LTC4059EDC#TRMPBF is a fully integrated solution that is compatible with a wide range of cell chemistries without the need for additional external components. The charger features a small footprint, which allows it to be used in handheld and space constrained applications.The chip features constant current and constant voltage regulators that provide accurate and stable charging for the Li+ cell. The constant current regulator will maintain a preset current level during the charging cycle, while the constant voltage regulator will limit the output voltage. The LTC4059EDC# TRMPBF also has automatic voltage fold back and thermal regulation to protect the Li+ cell from overcharging or overtemperature conditions. C/10 detection is also included to ensure that the Li+ cell is not overcharged.The LTC4059EDC# TRMPBF can also be used in a stand-alone configuration or with an external microcontroller to provide additional features. When used in a stand-alone configuration, the chip will automatically adjust the charge current and charge voltage based on the cell chemistry selected. With the external microcontroller, the chip can provide additional features such as programmable input current limit. It also has a status pin that provides status updates on the charging cycle.In summary, the LTC4059EDC# TRMPBF is a single cell lithium ion battery charger with input current limiting, adjustable output current, fast charge termination and programmable input current limit. The charger is designed to charge a wide range of Li+ cells, in both stand-alone and microcontroller-based configurations. Its small footprint makes it suitable for space-constrained applications.

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