ISL9203ACRZ-T

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The ISL9203ACRZ-T is a battery charger controller IC that offers superior performance in terms of current accuracy, temperature regulation, and maximum system current capability. It works by taking power from an external source, usually a wall plug, and distributing it to one or more battery cells within a device. By controlling the power distribution, the ISL9203ACRZ-T can ensure that each cell is charged with the correct voltage and current, and that the total current delivered to the system is always within a safe limit.

The ISL9203ACRZ-T is a 2- to 4-cell system that supports simultaneous charging and discharging. Different regulation levels can be selected via its onboard configuration registers, allowing the user to customize their charging profile for different battery chemistries. The IC also features built-in thermal regulation, which enables it to reduce output power when the ambient temperature rises above a certain threshold, thus safeguarding the battery from overcharging. Additionally, the chip can measure the battery voltage and temperature in realtime and feed auxiliary registers using the I2C bus, which can be used to monitor the battery\'s state-of-charge and the system temperature.

The ISL9203ACRZ-T is particularly well-suited for applications such as tablet computers, smartphones, wearables, and other portable electronic devices that need to charge their battery system safely and efficiently. It provides a comprehensive battery charging solution, enabling designers to reduce their BOM cost by eliminating expensive and bulky discrete components. The IC is available in a 16-pin package, allowing it to fit into space-constrained applications.

In addition to the aforementioned features, the ISL9203ACRZ-T can also provide system-level protection against overheating and excessive charging currents. Over temperature protection shuts off the battery charger output when temperatures exceed a user-defined limit. Current limit protection shuts off the charger and reduces the battery voltage to a safe level if the system current rises above a user-defined value.

The ISL9203ACRZ-T is an ideal solution for designing high-performance and cost effective battery charging systems for mobile devices. With its comprehensive set of features, the IC provides a safe, efficient and reliable charging solution in a compact, cost-effective package.

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