ISL9518HRTZ

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The ISL9518HRTZ is a high-performance single-channel battery charging IC. It is designed to be used in some of the most demanding consumer electronics and medical applications. With a wide operating voltage range and various safety features, this IC provides a reliable and efficient solution for single cell Li-Ion (3.7V & 4.2V) and Li-Polymer charging applications.

The ISL9518HRTZ is a part of the PMIC - Battery Chargers category and it features several benefits such as selectable fast charge current and voltage regulators. This chip offers several safety features, such as thermal protection, voltage overcharge protection, and under discharge protection. In addition, the chip also offers a fully integrated boost circuit for applications in harsh environments.

The working principle of the ISL9518HRTZ is similar to that of other single-channel battery charging ICs. The IC has two inputs from the battery and two control pins from the microcontroller or auxiliary electronics. The two inputs from the battery are the ground terminal (GND) and the battery terminal (VBAT). The two control pins are the charge enable (EN) and the standby (STBY) pins. When the EN pin is grounded, the device is in charge mode and it starts charging the battery. When the STBY pin is grounded, then the device enters the standby mode and stops charging.

The ISL9518HRTZ IC is based on a switching regulator control topology and it has various safety features, such as automatic charge termination when the end of charge (EOC) voltage is reached, overvoltage protection when the voltage rises above the specified level and reverse polarity protection. Additionally, the device also offers a 3-level charge current adjust circuit for setting the output current for different battery sizes.

In conclusion, the ISL9518HRTZ can be classified as a part of the PMIC - Battery Chargers category. It offers a reliable and efficient charging solution for single cell Li-Ion (3.7V & 4.2V) and Li-Polymer applications. With various safety features and an integrated boost circuit, the chip provides a safe charging experience.

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