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ISL6292-2CR3Z-T Application Field and Working Principle

Power Management Integrated Circuit (PMIC) are essential for almost all electronics devices, from power grid systems, industrial motor drives and renewable energy storage to consumer electronic appliances such as laptops, mobiles and wearables. One such PMIC is ISL6292-2CR3Z-T. It is an advanced battery charger providing a compact solution for charging Lithium-Ion and Lithium-Polymer batteries for laptop, tablet, and smartphone applications.

The ISL6292-2CR3Z-T supports several features such as charge-current monitoring and protection, programmable charge current and termination voltage settings, optional AC input present detection with automatic switchover, and cellular host interface support. Its other features include PWM, variable pre-charge, condition and float current settings, variable precharge and float voltage settings, thermal regulation, analog current/voltage sensing, shutdown, and thermal regulation.

Application Field

The ISL6292-2CR3Z-T is suitable for different application fields, including digital SLRs, tablets, smartphones, and other portable charging devices. It provides high efficiency charging with up to 95% efficiency at full load. It is capable of handling 18-20V and offers fast charging current from 500mA to 2A.

This IC offers many advantages for application-field specific charging requirements. For example, due to its ultra-low quiescent current consumption, it is suitable for applications where low-power and higher efficiency is required. It also offers improved accuracy of thermal regulation for improved safety margin for Li-Ion and Li-Polymer batteries.

Working Principle

The working principle of ISL6292-2CR3Z-T is based on a three-stage charging process. The first stage is called Constant-Current stage. In this stage, the charger supplies a constant current of up to 2A until the battery voltage reaches a certain level. The second stage is Constant-Voltage stage. In this stage, the charger maintains a regulated output voltage of up to 20V by adjusting the charging current in order to keep the voltage at that level. The third stage is Float-Voltage stage. In this stage, the charger supplies a lower constant current to maintain the battery’s charge.

In addition to the three-stage charging process, the ISL6292-2CR3Z-T also includes a number of safety features such as overcharge, over-temperature, and short circuit protection, as well as reverse current protection. This ensures the safety and reliability of the charging process.

The ISL6292-2CR3Z-T also features auto-mode control, which can detect the input source, either AC or USB, and adjust the charging current accordingly. This allows the device to charge from a variety of input sources.

Conclusion

The ISL6292-2CR3Z-T is a high-performance, high-efficiency integrated battery charger designed for a wide variety of portable and consumer electronics applications. It supports AC and USB input sources, as well as a number of safety features. Its three-stage charging process ensures optimized, safe and reliable charging of Li-Ion and Li-Polymer batteries.

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