LT1579CS8#TRPBF

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LT1579CS8#TRPBF Application Field and Working Principle

LT1579CS8#TRPBF is part of the battery management device family in the power-management integrated circuits (PMIC) category. It is developed by Linear Technology Corporation and is used as a linear charge controller for battery charging applications. It follows a 2-step charging algorithm, where the battery cell is first charged using a constant current at a predefined rate and then switched to a constant voltage mode where the battery is charged at a predefined voltage until the current drops to a predefined level.

Key Features

• Input voltage range: 6V - 40V
• Constant current range: 0.1A - 5A
• Output voltage range: 4.21V-27V
• Temperature range: -20°C - 85°C
• 2-step charging algorithm

Application Field

LT1579CS8#TRPBF has a wide range of applications in the battery charging field. Its operating temperature range makes it suitable for use in cars, drones, robotics, and industrial battery management systems. The device has also been used in solar energy systems and other renewable energy applications, where it effectively charges the batteries and keeps them topped up.

Working Principle

The LT1579CS8#TRPBF follows a two-step charging process for batteries. First, the charging cycle begins when the battery voltage is below the set maximum voltage threshold, and the constant current mode is activated. The pre-set constant current is of specific magnitude, which can be adjusted via a sense resistor. During the constant current mode, the charge voltage remains constant, and the amount of current supplied to the battery is regulated to limit it to the pre-defined level.

After the battery voltage is equal to or greater than the pre-defined maximum voltage threshold, the device automatically switches to the constant voltage mode. At this stage, the output voltage is set as the pre-defined maximum voltage that the battery can be charged up to. It is here that the charge current is regulated, and the voltage remains constant until the current drops to the set level.

Benefits

The LT1579CS8#TRPBF provides an efficient, low-cost solution for charging batteries in a variety of applications. The device is capable of supplying up to 5A of current, which can make charging faster and more efficient. Additionally, the two-step charging algorithm helps to make sure that the battery is charged up to the safest possible voltage, while also limiting the amount of current supplied in order to prevent any safety issues.

Conclusion

The LT1579CS8#TRPBF is a useful device for battery charging applications. It uses a two-step charging algorithm which helps to ensure that the battery is charged efficiently and safely. The device has a wide range of applications, including automotive, robotics, solar energy, and other renewable energy sources.

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