LTC4089-3 Datasheet Usb Power Manager

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC4089-3 USB Power Manager with High Voltage Switching Charger.

Datasheet Details

Part number	LTC4089-3
Manufacturer	Linear Technology (now Analog Devices)
File Size	1.13 MB
Description	USB Power Manager
Datasheet	LTC4089-3-Linear.pdf

General Description

The LTC®4089-3 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.

Battery charge current is automatically reduced such that the sum of the load current and the charge current does not exceed the programmed input current limit.

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 nn 3.95V Float Voltage Improves Battery Lifespan and High Temperature Safety Margin 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/Cons.

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