X3101V28T1

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Power management integrated circuits (PMICs) are semiconductor devices designed to deliver power in an efficient manner to a desired application. The PMICs in turn are driven by the feedback signals from the controlled device which in turn determine the amount of current and voltage supplied by it. One such device is the X3101V28T1, an integrated circuit designed to regulate the charging, discharging and protection of a 3 cell lithium ion battery pack.The field of application for X3101V28T1 is mainly limited to a Lithium-ion battery pack with three cells. Its working principle is based on a simple three step algorithm consisting of charge, transfer, and discharge. First step includes charging of the battery where the X3101V28T1 will provide a constant current to charge the battery pack up to voltage of 4.2V per cell. The second step involves transferring the previously charged energy from the pack to the load. This is done in a manner guaranteeing that every cell in the pack is discharged simultaneously at a balance rate of 2.7V per cell. In the last step, the X3101V28T1 disconnects the pack from the load and the battery pack is allowed to conditionally rest in order to complete the cycle.The X3101V28T1 is equipped with built-in protective features to protect the cells from overcharge and over-discharge. The IC also monitors the cell temperatures to maintain temperature within safe operation limits. The X3101V28T1 alsofeaturesactivecellbalancingandautomaticprewarningforsystemsusing3cellpacksover5Ahcapacity.TheX3101V28T1isormallyprogrammedinasmallsize8-pinQFNpackageanditcanbeoperatedwithwideinputvoltagerangeof2.8Vto5.5Vwhileprovidinghighaccuracy(±0.5%)ofchargingcurrentandvoltage.TheX3101V28T1isagreatbatterysolutionforminimizingcomponents such as voltage protection circuits, protection chips, current detectors and transistors. It also provides number of feature such as short circuit protection, under voltage protection, over voltage protection, over current protection, over temperature protection, and much more.The X3101V28T1 is a low cost, low power and robust integrated circuit for battery management. It has been designed to decrease the amount of components and footprints needed for a 3cell lithium ion battery pack, thus reducing the total costs of manufacture, shipping and assembly. It is a great choice for all kinds of portable electronic devices and can replace a variety of battery management ICs in many applications, saving both time and money.

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