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, Short Circuit
Charge Current - Max:	1.55A
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	6V
Interface:	I²C
Operating Temperature:	-30°C ~ 85°C (TA)
Package / Case:	25-UFBGA, WLCSP
Supplier Device Package:	25-WLCSP (2.4x2)

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Introduction: PMIC - Battery Chargers

A PMIC (Power Management Integrated Circuit) - Battery Charger is an integrated circuit that is used to charge, monitor and protect Lithium-Ion (Li-Ion) and Nickel metal hydride (NiMH) battery cells in consumer electronics such as laptops, digital cameras and portable media players. Battery chargers provide a means to efficiently charge batteries within a device and also ensure their safety.

FAN54053UCX Application Fields and Working Principle

FAN54053UCX is a PMIC - Battery Charger IC from Fairchild Semiconductor, which is designed to provide efficient charging of Li-Ion and NiMH battery cells in consumer electronics applications. It features an adjustable charge termination and charge current up to 1.5A, making it suitable for a wide range of applications. With its small size and low current draw, the FAN54053UCX is an ideal solution for portable and mobile devices.The FAN54053UCX features an adjustable charge current setpoint and charge termination voltage. It also has a built-in External Temperature Sensor (ETS), making it possible to monitor and manage Li-Ion cell temperatures in real-time. The IC is designed to rapidly charge both NiMH and Li-Ion cells and is capable of optimizing charge performance and prolonging cell life by preventing excessive heat buildup.The FAN54053UCX operates with a constant current/constant voltage charge algorithm and is able to terminate a charge cycle when the cell voltage reaches the desired setpoint or, if necessary, when the cell temperature rises above a certain level. It also provides protection against reversed battery insertion and detection of abnormally low cell voltages.

Conclusion

The FAN54053UCX PMIC - Battery Charger IC from Fairchild Semiconductor provides an efficient charging solution for Li-Ion and NiMH battery cells in consumer electronics applications. It features an adjustable charge current setpoint, charge termination voltage and built-in External Temperature Sensor (ETS), allowing for real-time cell temperature monitoring and management. The FAN54053UCX is suitable for a wide range of applications that require rapid charging of both NiMH and Li-Ion cells.

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