BQ24151AYFFT Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current, Timer, Voltage
Fault Protection:	Over Temperature, Over Voltage
Charge Current - Max:	1.25A
Battery Pack Voltage:	4.44V (Max)
Voltage - Supply (Max):	6V
Interface:	I²C
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	20-UFBGA, DSBGA
Supplier Device Package:	20-DSBGA (2.1x2)
Base Part Number:	BQ24151

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC - Battery Chargers refer to integrated circuits used in the design of portable electronic devices powered by batteries. The devices are typically used to create an optimized charging solution for a specific battery type or technology. Governments around the world have also started to legislate for recordkeeping and safety requirements for devices for charging batteries and induction in end devices. BQ24151AYFFT is an example of PMICs for battery charging applications developed by TI. BQ24151A is a fully integrated single-cell Li-Ion/Li-Polymer standalone battery charger, featuring constant frequency and current regulation operating from 4.5V to 16V DC. The device includes system power FET automatically regulated by the application and features a course state current regulation of up to 26V, and a fine state current regulation of up to 4.54V. The device is designed to optimize the charging of Lithium-ion and lithium polymer batteries. It can work with multiple AC/DC power suppliers, including wall adapters with up to 26V output to support multiple applications on different platforms.The device is also integrated with a set of transient voltage suppression (TVS) and reverse current blocking diode protection to enhance the charger’s robustness against input voltage transients or reverse current conditions and assures safe operation under fault conditions. The charger can also sense various temperature conditions and automatically adjust the charging current accordingly to optimize the battery life and ensure faster charging time under specified conditions. The device also supports an optional overtemperature protection mechanism to shut down the charger when extreme temperature conditions are encountered. This device also has built-in input and output short circuit protection at the power side of the circuit.The working principle of the BQ24151A is based on Constant Frequency Control (CFC) with an adjustable current sense, which controls battery current and voltage. By constantly monitoring the input voltage, it maintains a constant battery charge current at an optimum level with tight voltage tolerance. This allows for a high degree of accuracy and faster charging time, as well as provides a feature to switch off power FET when not in use. Furthermore, the device includes the following features to enhance the charger performance and safety, such as constant frequency control, battery temperature monitoring, input surge, over-temperature protection, output overvoltage protection, and Under voltage Lockout (UVLO) for protection.The intelligent charging capability of BQ24151A is fully compliant with the global trend of implementing high-efficiency, low-power chargers. It is suitable for portable applications where power sources of different voltages are available. It offers charging in Constant Current/Constant Voltage (CC/CV) mode, and the integrated power FET ensures high efficiency and flexibility. The constant frequency control feature with adjustable current sense allows for optimal charging time, and its excellent transient overload characteristics make it safe and reliable. The charger is also designed as a low-cost solution with fewer external components. In summary, the BQ24151A PMIC - Battery Charger is a high-performance and low-cost solution designed to support efficient charging of Lithium-ion and lithium polymer batteries. It features a constant frequency control with adjustable current sense, built-in transient voltage suppression (TVS) and reverse current blocking diode protection, and temperature sensing to automatically adjust the charging current and protect from extreme temperature conditions. The device offers efficient solution for portable applications where power sources of different voltages are available and supports an optional overtemperature protection to help shut down the charger when needed.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description