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LTC4089-1 - USB Power Manager

General Description

The LTC®4089-1 is a USB power manager plus high voltage Li-Ion battery charger.

This device controls the total current used by the USB peripheral for operation and battery charging.

Key Features

  • nn Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V External Supply nn High Efficiency 1.2A Charger from 6V to 36V Input nn Load Dependent Charging from USB Input Guarantees Current Compliance nn 215mΩ Internal Ideal Diode plus Optional External Ideal Diode Controller Provides Low Loss Power Path When External Supply/USB Not Present nn Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charging Rate without Risk of Overheating nn Selectable.

📥 Download Datasheet

More Datasheets from Linear Technology (now Analog Devices)

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LTC4089-1 USB Power Manager with High Voltage Switching Charger Features nn Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V External Supply nn High Efficiency 1.2A Charger from 6V to 36V Input nn Load Dependent Charging from USB Input Guarantees Current Compliance nn 215mΩ Internal Ideal Diode plus Optional External Ideal Diode Controller Provides Low Loss Power Path When External Supply/USB Not Present nn Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charging Rate without Risk of Overheating nn Selectable 100% or 20% Current Limit (e.g., 500mA/100mA) from USB Input nn Preset 4.1V Charge Voltage with 0.