ISL9220BIRTZ-T7A

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The ISL9220BIRTZ-T7A is a Battery Charge Manager IC with Coupled Inductor and Synchronous Buck Operation. It is a perfect choice as a battery charger for mobile computing, wearables and other mobile devices with its highly power efficient design. It is a single-channel, synchronous buck-boost controller with integrated FETs. It supports up to 4 Li-ion or Li-ion polymer cells and its maximum charging current is up to 12A.

The ISL9220BIRTZ-T7A is designed to meet the most demanding power management requirements of modern portable applications, with features that include: adjustable output voltage, programmable charge currents, charge type detection, charge state monitoring and fault detection. It also offers other features that can add value to the finished product, such as over-voltage protection and thermal shutdown.

The ISL9220BIRTZ-T7A\'s functionality is based on the dual-stage architecture that uses two coupled inductors. The two coupled inductors reduce the output voltage ripple and improve system EMI performance. The device supports a variable output voltage range of 0.2V up to 7.3V and a variable input voltage range of 2.7V up to 6.5V. It also utilizes a unique over-voltage protection feature that limits the maximum output voltage.

The ISL9220BIRTZ-T7A has an advanced charge cycle detection that enables the charger to identify the presence of a 4-cell battery or 2-cell battery. The device also supports the read-back of charge cycle information, which can be used to accurately monitor and control the charging process. In addition, the ISL9220BIRTZ-T7A supports charge state monitoring and fault detection features such as over-current protection and thermal management.

The ISL9220BIRTZ-T7A is also designed for easy system integration with its integrated logic input level shifters for I2C and SDA interfaces. It also features a power-good indicator and the device supports a pulse-width modulation (PWM) control mode. The device also supports a wide temperature range of -40℃ to +85℃.

In conclusion, the ISL9220BIRTZ-T7A is a highly integrated, mobile-friendly battery charger IC that is well-suited for use in small form factor portable devices. It offers adjustable output voltage, programmable charge currents, charge type detection, charge state monitoring and fault detection features, as well as over-voltage protection and thermal shutdown. Furthermore, the device\'s dual-stage architecture and integrated logic level shifters enable easy system integration.

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