LTC4089EDJC-3#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Timer
Fault Protection:	--
Charge Current - Max:	--
Battery Pack Voltage:	3.95V
Voltage - Supply (Max):	5.5V, 36V
Interface:	USB
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	22-WFDFN Exposed Pad
Supplier Device Package:	22-DFN (6x3)
Base Part Number:	LTC4089

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Introduction of PMIC - Battery Chargers

PMIC - Battery Chargers are integrated circuits that provide a simple and reliable solution for battery charging and protection. Battery chargers are used in a variety of applications such as cell phones, laptop computers, wearable devices, and automotive applications. PMIC - Battery Chargers are designed to manage the charging of a variety of battery technologies, such as NiMH, NiCd, Li-Ion and Li-Polymer. The chargers are able to detect when a battery has been fully charged and terminate the charging process, protecting the battery from overcharge. Some chargers also feature an integrated safety timer that terminates the charge if the battery does not reach a full charge within a predefined period of time.

Applications of LTC4089EDJC-3#PBF

The LTC4089EDJC-3#PBF is a very powerful PMIC - Battery Charger offering a unique set of features and capabilities. It is an ideal solution for many low power applications, including cell phones, MP3 players and other handheld devices. The LTC4089EDJC-3#PBF is designed to support the charging of single-cell Li-Ion and Li-Polymer batteries, as well as NiMH, NiCd, alkaline, and PMR.The LTC4089EDJC-3#PBF offers an integrated low-side MOSFET switch that helps minimize power dissipation in the circuit during charging. It also offers protection against overvoltage, overcurrent, and overcharging, as well as reverse voltage protection.

Working Principle of LTC4089EDJC-3#PBF

The LTC4089EDJC-3#PBF has an internal switching charger that operates on a regulated voltage. When the battery voltage falls below the programmed voltage, the charger transitions to a constant-current state and begins charging the battery. When the battery is fully charged, or when the charge current falls below a programmable threshold, the charger automatically transitions to a trickle-charge mode.The LTC4089EDJC-3#PBF offers a wide range of protection features, including overvoltage, overcurrent, and overcharging protection, as well as reverse voltage protection. The charger also features an integrated safety timer to protect against excessive charging in the event of a short circuit or if the charge current is not sensed correctly. The LTC4089EDJC-3#PBF is a highly efficient device, with very low power dissipation. The device is also capable of fast charging and has a very low profile (4.4mm x 7.4mm) which makes it ideal for space-constrained applications.

Conclusion

The LTC4089EDJC-3#PBF is an excellent choice for battery charging and protection needs in low power applications. The integrated switching charger and protection features make the LTC4089EDJC-3#PBF a powerful and reliable solution. The integrated MOSFET switches and low power dissipation make it an ideal solution for space-constrained battery charging applications.

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