The IU5186C buck-boost charger IC is a charge management IC designed for lithium-ion batteries and lithium-polymer batteries. This chip integrates switch-mode buck-boost charging technology, which can automatically apply for fast charging input to improve charging efficiency. Its operating voltage range is 36-21V, the withstand voltage of the BAT end is up to 30V, which can adapt to a variety of lithium batteries of different specifications.
In terms of charging current, the IU5186C has a charge current capability of 3A, and the charge current can be flexibly adjusted by an external resistor. This design allows the chip to adapt to different levels and specifications of lithium batteries to meet the charging needs of various devices. In addition, the IU5186C features an input current adaptation function that adaptively adjusts the output of the adapter to prevent the output of the adapter from collapsing, and matches the input adaptive loop of all adapters.
In terms of protection functions, IU5186C has built-in over-temperature protection and over-voltage protection functions, which can effectively protect the safety of batteries and charging equipment. At the same time, the chip also has a temperature adaptive adjustment function, which can intelligently adjust the charging current according to temperature changes to ensure the stability and safety of the charging process.
In addition to the basic functions, the IU5186C has the following features:
1.Integrated 4 switches, maximum 3A charging current, charging current external resistance adjustable.
2.Support 1 5 cells lithium iron phosphate battery with NTC function.
3.It has four control loops, including constant current loop, constant voltage loop, chip temperature regulation loop and input adaptive loop, which can intelligently adjust the charging current, prevent the output of the adapter from collapsing, and match the input adaptive loop of all adapters.
4.By adjusting the voltage division ratio of the external feedback resistance of the battery, different constant voltage charging voltage values can be obtained, so as to adapt to lithium batteries with different sections and specifications.
5.It has the function of over-temperature protection and temperature adaptive adjustment, and has good EMI characteristics.
In general, the IU5186C buck-boost charging chip is a full-featured and stable charging management IC, which is suitable for various devices that need to charge lithium batteries or lithium polymer batteries, such as Bluetooth speakers, lithium iron phosphate battery packs, electronic cigarettes, walkie-talkies, toys, etc. Its high flexibility and stability enable it to adapt to different battery and equipment needs, providing a strong guarantee for the stable operation of the equipment.