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LTC4089 - USB Power Manager

General Description

The LTC®4089/LTC4089-5 are USB power managers plus high voltage Li-Ion battery chargers.

These devices control 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 with Adaptive Output Control (LTC4089) nn Load Dependent Charging from USB Input Guarantees Current Compliance nn 215m 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 wit.

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Other Datasheets by Linear Technology (now Analog Devices)

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LTC4089-1 USB Power Manager
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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.

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LTC4089/LTC4089-5 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 with Adaptive Output Control (LTC4089) nn Load Dependent Charging from USB Input Guarantees Current Compliance nn 215m 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 4.2V Charge Voltage with 0.