LTC4008EGN#TRPBF

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PMIC - Battery Chargers: LTC4008EGN#TRPBF

The LTC4008EGN#TRPBF is a high efficiency, adjustable current/voltage step-up/step-down regulator from Linear Technology. It is specifically designed for powering a variety of both small and larger electronic devices, most particularly those used to charge batteries. It has a maximum power capability of 8A and supports a wide input voltage range of 2.25V to 18V. It is suitable for single and dual cell Li-Ion/Li-Polymer applications as well as multi-cell alkaline/NiCd/NiMH applications.

Application Field

The LTC4008EGN#TRPBF is a versatile and efficient rechargeable battery charger designed for use in a variety of consumer electronics and automotive applications. It can be used to charge Li-Ion and Li-Polymer batteries, alkaline batteries, NiCd batteries, and NiMH batteries in both single and dual cell configurations. It can be used for cell phone, laptop, music player, camera, model aircraft, and miniature robotic applications. It is also a useful general purpose step-up/step-down converter that can be used in many other applications.

Working Principle

The basic working principle of the LTC4008EGN#TRPBF is that it regulates an input voltage to maintain a desired output voltage and current. It does this by using a combination of linear and switched mode regulation. A linear regulator is used for high efficiency, accurately controlled output, and very low noise. A switched mode regulator is used for high frequency operation and fast transient response. In order to achieve optimal efficiency, a maximum power point control (MPPC) circuit is used to adjust the output voltage and current to maintain the maximum power capability. In addition, there is an input current limiting circuit that limits the input current to protect the charger from damage due to a heavy input current.

The LTC4008EGN#TRPBF also has a low quiescent current, which means that it only draws a minimal amount of current even when it is not actively charging or discharging a battery. This feature makes it an ideal choice for use in portable applications where battery life is a concern. In addition, the regulator is fully protected against over voltage and over temperature conditions, making it very reliable and adding to its safety features.

The LTC4008EGN#TRPBF is designed to be adaptable to various applications and provide efficient, reliable, and safe charging. It is capable of operating at very high efficiency, making it an ideal choice for any application where power efficiency and cost are key considerations.

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