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LTC4062

Analog Devices

LTC4062 RSS Sample
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Kod:
LTC4062
Producent:
ANALOG DEVICES
Dodany do bazy:
Ostatnio widziany:

The LTC4062 is a full-featured, flexible, standalone linear charger for single-cell Lithium-Ion batteries. It is capable of operating within USB power specifications.

Both programmable time and programmable current based termination schemes are available. Furthermore, the CHRG open-drain status pin can be programmed to indicate the battery charge state according to the needs of the application. A precise low power comparator is available even with no power applied as long as battery voltage is higher than 2.5V. Additional safety features designed to maximize battery lifetime and reliability include the SmartStart charging algorithm.

No external sense resistor or external blocking diode is required for charging due to the internal MOSFET architecture. Internal thermal feedback regulates the charge current to maintain a constant die temperature during high power operation or high ambient temperature conditions. The charge current is programmed with an external resistor. With power applied, the LTC4062 can be put into shutdown mode to reduce the supply current to 20µA and the battery drain current to less than 5µA. Without power applied, the internal low power comparator can work sinking only 10µA from the battery.

Other features include smart recharge, USB C/5 current programming input and undervoltage lockout.

*Protected by U.S. Patents, including 6522118.

* Handheld Computers

* Portable MP3 Players

* Digital Cameras

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