Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Multi-Chemistry
Number of Cells:	1 ~ 4
Current - Charging:	Constant - Programmable
Programmable Features:	--
Fault Protection:	Over Voltage, Reverse Current
Charge Current - Max:	--
Battery Pack Voltage:	16.8V
Voltage - Supply (Max):	28V
Interface:	--
Operating Temperature:	-40°C ~ 125°C (TA)
Package / Case:	20-WFQFN Exposed Pad
Supplier Device Package:	20-QFN (4x4)
Base Part Number:	LTC4009

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

Introduction

The LTC4009IUF-2#TRPBF is a high-efficiency, four-channel battery charger integrated circuit that enables simultaneous charging of four battery cells of different capacities, chemistries, and sizes. This multi-channel battery charger offers the flexibility and robustness needed to optimize any rechargeable system. It is designed to detect and charge NiMH, NiCd, and Li-Ion rechargeable batteries without user intervention. The device also features an adjustable charge current value with a continuous regulation range between 0.1A and 4.0A. It features a low voltage drop through a low internal power dissipation and a low temperature rise, making it a cost-effective, space-saving solution for multiple-rechargeable system applications.

Properties

The LTC4009IUF-2#TRPBF offers a variety of properties that make it an ideal solution for battery charge management. It is designed for use in multi-battery applications and supports a wide range of battery chemistries. It offers continuous charge current regulation from 0.1A to 4.0A for all four channels. Furthermore, it is also adjustable to a specific battery capacity with temperature compensation. It also features an auto-shutdown option as well as a soft-start current ramp to minimize EMI. Additionally, the device has an adjustable charge termination voltage and adjustable charge termination current limits.

Benefits

Due to the integrated protection, the LTC4009IUF-2#TRPBF enables system designers to meet safety standards such as UL and TUV while keeping system size and cost to a minimum. It also provides an integrated charge management system with temperature compensation, which minimizes the need for additional external components. Furthermore, the detector pin eliminates the need for user intervention, making it easier to set up and manage battery charge applications. Finally, the device is capable of providing constant current regulation, which helps minimize ripple and fluctuating voltages.

Applications

The LTC4009IUF-2#TRPBF is ideal for a wide range of applications, including portable medical devices, industrial systems, and communication equipment. Its high efficiency and low power consumption make it suitable for a variety of portable battery-powered devices, including cell phones and portable computers. In addition to being used in battery charging systems, the device can also be used in automotive, marine, and aviation applications.

Working Principle

The LTC4009IUF-2#TRPBF is designed to charge four independent battery cells with different chemistry and capacity. Each channel has its own independent internal circuit, consisting of an input port, current and voltage loop, charge termination controller, and power MOSFET switch. The voltage loop is operational when the battery needs to be charged and determines the output current. The current loop constantly monitors the output current and regulates it to the prescribed level. The charge termination controller monitors the output voltage and limits it to the predetermined charge voltage level. The Power MOSFET switch is used for current switching and regulation when charging the battery.

Conclusion

The LTC4009IUF-2#TRPBF is an advanced and efficient four-channel battery charger integrated circuit. It offers flexibility and robustness needed to optimize any rechargeable system. It supports a wide range of battery chemistries and features an adjustable current, adjustable charge termination voltage, and adjustable charge termination current limits. Additionally, the device has an integrated protection and offers continuous charge current regulation. Finally, the LTC4009IUF-2#TRPBF is an ideal solution for a wide range of applications, including portable medical devices, industrial systems, and communication equipment.

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

Part Number	Manufacturer	Price	Quantity	Description