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LTC4410/LTC4053 Evaluation Kit
Linear Technology Inc.
Description
DC567 achieves USB compliant battery charging by measuring the current to the USB application circuit and reducing the charging current in order to hold the input current within the USB specification. Connected to the demo board will be a single Li-Ion cell, a source of charging power and an application load. Battery charging is controlled by the LTC4053, which is a constant current, constant voltage, timer terminated single Li-Ion charger. The LTC4053 also features a die temperature limit to avoid excessive PCB temperatures. USB compliance is achieved by the LTC4410, which measures the current flowing from the USB power input into the application load and backs off the charge current in a 1:1 ratio to maintain compliant input current. The LTC4410 also provides power path management and in the event the USB power is not present, connects the Li-Ion battery to the application load via a low loss Mosfet in order to maximize battery run time.
Features
DC567 - LTC4410/LTC4053 Evaluation Kit Disclaimer: Linear Technology cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Linear Technology product. No circuit patent licenses are implied. Linear Technology reserves the right to change the circuitry and specifications without notice at any time.
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