LX2208ILD

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Introduction to LX2208ILD Battery Chargers

LX2208ILD is a power management IC (PMIC) that is used in a wide variety of applications, including battery chargers. It is a highly integrated device that is designed to provide a cost-effective solution for managing and charging lithium-ion (Li-ion) and other battery types. It features a dual-phase, regulated current source that can be used to provide constant current and constant voltage (CCCV) charging to batteries. In addition, it features programmable protection functions such as input protection, short-circuit protection, and overvoltage protection. It also features a flexible clock output which can be used for system timing and synchronization.

Key features of LX2208ILD

• Input voltage range: 4.5V to 20V
• Output current range: 0.1 to 5A (adjustable)
• Dual-phase charging: up to two channels can be used for simultaneous charging
• Constant current and constant voltage (CCCV) charging with programmable charging current (CC) and output voltage (CV)
• Programmable protection functions for input, short-circuit and overvoltage
• Flexible clock output can be used for system timing and synchronization
• Low standby current: 1uA
• High efficiency: up to 95%
• High accuracy temperature compensation
• High precision voltage and current regulation
• Thermal shutdown and overcurrent protection

Applications

Due to its wide range of features, LX2208ILD is well suited for a variety of applications.

• Portable electronic devices
• Cordless phones
• Laptop computers and power adapters
• Mobile phones and PDAs
• Digital cameras
• MP3 players
• Tablets and notebooks
• Rechargeable batteries
• Consumer electronics

It is also widely used in industrial applications such as green energy systems, solar power systems and other power systems.

Working Principle

The LX2208ILD works by alternating between two phases: a constant current (CC) phase, and a constant voltage (CV) phase. During the constant current phase, the device provides a regulated input current to the battery, ensuring that it charges at a constant rate. During the constant voltage phase, the device monitors the battery voltage and limits it to the programmed voltage output (V_out). When the battery has charged to the desired voltage, the charger automatically switches to the voltage/hold mode, where it reduces the input current to maintain the battery voltage at the programmed voltage level.

The LX2208ILD also features programmable protection settings for input, short-circuit and overvoltage. These settings ensure that the battery does not receive too much current or voltage, which could lead to catastrophic failure or damage.

The device also features a low standby current of 1uA, high efficiency of up to 95%, and high accuracy temperature compensation. This enables the device to keep the battery temperature within a safe range, while still providing efficient and reliable charging to the battery.

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