Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current
Fault Protection:	Over Temperature
Charge Current - Max:	3A
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	6V
Interface:	I²C
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	36-UFBGA, DSBGA
Supplier Device Package:	36-DSBGA

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PMIC - Battery Chargers

With the rapid development of battery technology, battery-powered applications such as mobile phones and smart watches have become increasingly popular. In order to ensure safe use of the battery, the quality and accuracy of the battery charger are very important. The BQ24262YFFR PMIC-Battery Chargers can provide lower charging current, higher charging accuracy and better protection for the battery. This article will introduce the application field and working principle of the BQ24262YFFR.

Application Field

The Texas Instruments (TI) BQ24262YFFR PMIC-Battery Chargers is specifically designed for portable battery applications. It integrates a high-efficiency synchronous buck converter, multiple buck converters, and a system load switches to provide low-power battery charging and power management solutions. Its features include a small footprint, low power consumption, and high performance. The BQ24262YFFR is ideal for applications such as mobile phones, cameras, tablets, laptops, and other portable electronic products.

Working Principle

The BQ24262YFFR PMIC-Battery Chargers is based on a synchronous buck converter and multiple buck converters. The synchronous buck converter is used to provide charging current from the power source to the battery. The multiple buck converters are used to control different loads in the system such as LCD screen, audio amplifier, etc. The system load switch is used to turn on and off the charging and system loads as needed.The concept of overall power requirement is to set the input power source to be always less than the power demand of the device. The BQ24262YFFR provides voltage and current-sensing feedback to calculate the inrush current that is required to meet the load power requirements. The unit also features a Digital Power Management (DPM) function to control the system loads.The BQ24262YFFR also has several features to protect the battery while it is charging or discharging. The reverse current protection prevents current flowing from the battery to the power source when the device is powered off. The overvoltage protection ensures that the terminal voltages of the battery remain below a safe limit. The voltage monitoring and balancing feature provide for balanced charge and discharge between each cell when a 4-cell battery pack is used.

Conclusion

In conclusion, the BQ24262YFFR PMIC-Battery Chargers provide a high performance and low power solution for powering portable battery applications. It is based on a synchronous buck converter and multiple buck converters to provide charging current and power management. It also offers several features to protect the battery while charging or discharging.

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