LTC4156IUFD#PBF

LINEAR TECHNOLOGY  LTC4156IUFD#PBF  芯片, 锂电池充电器, I2C, 3.5A, 15W, 28QFN

The is a 15 watt I2C controlled Power Manager with PowerPath™ instant-on operation, high efficiency switching battery charging and USB compatibility. The LTC4156 seamlessly manages power distribution from two 5V sources, such as an USB port and a wall adapter, to a single-cell rechargeable lithium iron phosphate battery and a system load. The LTC4156"s switching battery charger automatically limits its input current for USB compatibility or may draw up to 3A from a high power wall adapter. The high efficiency step-down switching charger is designed to provide maximum power to the application and reduced heat in high power density applications. I2C adjustability of input current, charge current, battery float voltage, charge termination and many other parameters allows maximum flexibility. I2C status reporting of key system and charge parameters facilitates intelligent control decisions.

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High efficiency charger capable of 3.5A charge current

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Charge control algorithm specifically designed for LiFePO4 batteries Lithium Iron phosphate

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Monolithic switching regulator makes optimal use of limited power and thermal budget

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Dual input overvoltage protection controller

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Priority multiplexing for multiple inputs

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I2C/SMBus control and status feedback

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NTC thermistor ADC for temperature dependent charge algorithms JEITA

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Instant-on operation with low battery

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Battery ideal diode controller for power management