LTC4078EDD-2#PBF

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Function:	Power Management
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Fault Protection:	Over Voltage
Interface:	USB
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-DFN (3x3)
Base Part Number:	LTC4078

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Introduction to LTC4078EDD-2#PBF

The LTC4078EDD-2#PBF is a highly integrated, low-side power-management integrated circuit (PMIC) by Linear Technology, which is primarily used for battery management and other applications. It is an ideal solution for efficient and accurate battery-charging control.

Application Fields of LTC4078EDD-2#PMIC

The LTC4078EDD-2#PMIC is suitable for applications ranging from Single-Cell Lithium-Ion battery charging, Portable Electronics, Cellular phones, Portable Toys and Radio-Controlled systems. It provides excellent current regulation and can reduce undesirable ripple on the battery current.

Features of the LTC4078EDD-2#PMIC:

The LTC4078EDD-2#PBF has various features such as low-side switched current limitation, over-voltage protection, under-voltage protection, charge termination and low-side power switch. The chip also has a power-saving current-droop control, which enables the user to reduce the input current during light-load conditions.

Working Principle

The LTC4078EDD-2#PBF works on a closed-loop voltage-sensing topology. The chip senses the voltage across a resistor divider on the output pin of the flyback converter and adjusts the current limit-set resistance accordingly. It then regulates the current limit to maintain a constant voltage on the battery.The chip also has a low-side switch to reduce power consumption in light-load conditions. When the current is below a certain limit, the switch is turned off and the input current is reduced significantly. The power-saving current-droop control ensures that the output voltage is kept constant even when the input current is reduced.

Conclusion

In conclusion, the LTC4078EDD-2#PBF is a highly integrated low-side power-management integrated circuit designed for battery management and other applications. It provides excellent current regulation, low-side switched current limitation, under-voltage protection, over-voltage protection, charge termination, and power-saving current-droop control. The chip operates on a closed-loop voltage-sensing topology and is suitable for use in various applications such as portable electronics, cellular phones, portable toys, and radio-controlled systems.

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