BQ24392RSER Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Function:	Multi-Function Controller
Battery Chemistry:	--
Number of Cells:	--
Fault Protection:	--
Interface:	USB
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	10-UFQFN
Supplier Device Package:	10-UQFN (2.0x1.5)
Base Part Number:	BQ24392

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PMIC - Battery Management: BQ24392RSER Application Field and Working Principle

The BQ24392RSER is a member of the BQ family, which is a range of battery management devices from Texas Instruments that provides a broad range of features and functions, making them suitable for a variety of applications. The BQ24392RSER primarily serves as an integrated, programmable Battery Pack Manager with Control, Indication, Charging and Protection to maximize system efficiency in portable systems. This particular family of devices is designed for Li-Ion and Li-Ion poly time based charging and offers an advanced charge algorithm designed to compensate for environmental conditions, extended power cycling and fast charge time. The BQ24392RSER is a member of the Pb-batt family, which are very useful power-supply devices with series N-Channel MOSFETs that provide automatic switching of chosen load current between the input battery and USB port. This type of device offers a range of features such as an efficient way of automating a Li-Ion or Li-Ion batteries charging process, encapsulating a no-load/low-current detection circuit, providing protection against short-circuit and over-discharge at the output side of the charger, and offering an easy way of high-current input/load regulation. It also offers an advanced algorithm for fast charging, irrespective of the capacity of the battery.In terms of its application field, the BQ24392RSER can used for many applications such as mobile phones, tablet computers, digital cameras, electronic notebooks, and many more. The main purpose of the device is to provide a unified power supply system that can manage the charging process between the input battery and the USB port using series N-Channel MOSFETs.The device can also provide protection in the event of a short-circuit, over-discharge, or a no-load/low-current condition, as well as offering an easy way of recharging a depleted Li-Ion battery.The working principle of the BQ24392RSER revolves around its advanced charge algorithm and series N-Channel MOSFET switching. The device has two power inputs: one is the battery/charger source and the other is a USB port. The device can detect the presence of a battery and can then switch the power source from the battery to the USB port if necessary. If the battery’s voltage is below a certain threshold, then a Li-Ion poly time-based charging process will begin and the current will be adjusted accordingly to ensure a fast, yet efficient charging process. To protect the device from over-charging, short-circuiting and other events, the BQ24392RSER has several features. This includes an integrated No-load/Low-Current Detection circuit that will shut off the charger if the load is too low or if the voltage is too low. This is also combined with an over-discharge protection feature that prevents Li-Ion batteries from being permanently damaged by over-discharging. The device itself is also protected, as it has an integrated over temperature circuit that will shut down the device if it gets too hot.In conclusion, the BQ24392RSER is a very useful device for Li-Ion and Li-Ion-Poly battery charging applications. It offers a range of features and protection features that make it an all-round device suitable for many, different devices and applications. The advanced charge algorithm that it is equipped with ensures fast, yet efficient charging of the chosen battery, and its series N-Channel MOSFETs allow it to switch between the battery/charger source and the USB port as necessary.

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