BQ24073RGTT

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current, Timer
Fault Protection:	Over Temperature, Over Voltage, Reverse Current, Short Circuit
Charge Current - Max:	1.5A
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	6.4V
Interface:	USB
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	16-VFQFN Exposed Pad
Supplier Device Package:	16-QFN (3x3)
Base Part Number:	BQ24073

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PMIC - Battery Chargers: BQ24073RGTT Application Field and Working Principle

The BQ24073RGTT is a battery charger IC with power management that is highly efficient and compact. It is integrated with several advanced functions such as under voltage lockout (UVLO), programming of the fast-charge current, and automatic charger termination for enhanced battery protection. This integrated circuit is designed for single-cell Li-ion and Li-polymer batteries in highly integrated applications, such as smartphones, wearable devices, and tablets.

Features of the BQ24073RGTT

The BQ24073RGTT has many features to help keep battery life safe. The features include a programmable fast-charge current that can be set between 400 mA to 1000 mA, under-voltage lockout that keeps the battery from over discharging, and a float voltage that ensures the battery is kept in a safe range when charging. Moreover, the Device automatically terminates charging when the temperature gets too high or when the battery is fully charged and provides various protections, such as overvoltage protection, thermal shutdown, and over discharge protection.

The Working Principle

The BQ24073RGTT works by providing a constant current to the battery during the fast-charging process and then slowly decreasing the current until the battery reaches the full-charge state. This process both protects the battery from overcharging and ensures that it does not over-discharge.When the charging current peaks, the BQ24073RGTT automatically lowers the output current until the battery reaches its full-charge state. When the battery is fully charged, the device then shuts off the charge source.The BQ24073RGTT also monitors the battery temperature during charging and automatically decreases or shuts off charging power when the temperature gets too high in order to protect the battery from damage.

Applications

The BQ24073RGTT offers many benefits for use in a variety of applications, such as smartphones, tablets, and wearables. It is highly efficient, compact, and offers great protection to both the battery and the device in which it is installed.The BQ24073RGTT is also perfect for use in batteries with integrated closers, since the device will automatically apply the closer when the battery reaches the required voltage level. This helps to guarantee a safe and reliable discharge for the battery when the device is powered on.In addition, the BQ24073RGTT features an integrated PTC which prevents the device from being overcharged, making it an ideal choice for heavy-duty applications.

Conclusion

The BQ24073RGTT is a highly advanced battery charger IC with several integrated features that make it perfect for use in a variety of applications. Its power management, automatic charger termination, and under voltage lockout features provide extra protection for the battery under charging. Additionally, its programmable fast-charge current ensures that the battery is able to reach a full charge quickly and efficiently. This makes it a great choice for any high-demand device, such as smartphones, tablets, or wearable devices.

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