LTC4096XEDD#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current
Fault Protection:	--
Charge Current - Max:	1.2A
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	5.5V
Interface:	USB
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-DFN (3x3)
Base Part Number:	LTC4096

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Introduction of LTC4096XEDD#PBF Battery Charger

The LTC4096XEDD#PBF is a high-performance Li-Ion battery charger specifically designed for use with portable applications. It integrates a switch-mode battery charger and a low-noise regulator ideal for USB, adapters and other wall chargers. The charging current is up to 2A and it supports up to four cells in series. The charger automatically detects the power source and can monitor each cell individually to reduce overcharging and maximize battery life.

Application fields of LTC4096XEDD#PBF Battery Charger

The LTC4096XEDD#PBF is a highly efficient, single-chip solution for a variety of applications including:

• Consumer electronic devices
• Mobile phones & phones
• Notebook computers & PDAs
• Small & giant appliances
• GPS systems & medical devices
• Entertainment systems & automotive applications

Its wide input voltage range (4V-20V) and small size allows for its usage in limited space designs, making it ideal for low power, portable applications. Moreover, its adjustable preset charge current is adjustable, allowing the user to set the desired current according to the requirements of the application.

Working Principle of LTC4096XEDD#PBF Battery Charger

The LTC4096XEDD#PBF uses a buck topology with a synchronous buck regulator and a high-side MOSFET switch to regulate the input voltage and current. The buck regulator consists of an error amplifier, a high side driver and a low side driver. Control of the buck regulator is done by the error amplifier. It compares the regulated output voltage of the buck regulator and the voltage of the reference pin and adjusts the duty cycle accordingly.The LTC4096XEDD#PBF has a precision current source integrated. This source monitors the battery voltage and current to prevent overcharging. It also has over-temperature protection and a power fail module to shut down charging when enabled. The LTC4096XEDD#PBF is designed to achieve a high efficiency of over 95% in most applications, so the power source is not required to be as large as with other applications. Furthermore, the adjustable LED mode can also be used to indicate the charge status. In conclusion, the LTC4096XEDD#PBF is a highly efficient and reliable single-chip Li-Ion battery charger ideal for low power, portable applications. It supports up to 4 cells in series and offers a wide input voltage range, adjustable preset charge current, over-temperature protection and a power fail module. It is well-suited for use in consumer electronic devices, mobile phones, notebook computers, PDAs, small and giant appliances, GPS systems, medical devices and entertainment systems.

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