MIC79110BML-TR Integrated Circuits (ICs)

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The MIC79110BML-TR is a high performance monolithic linear Li+ battery charger packaged with 30-ball WLPF. This device includes an integrated FET, pass element, current sense resistor, oscillator, and charge control comparator that defines a step-down buck converter. The MIC79110BML-TR converts an input voltage (VIN) of up to 22V down to a constant-voltage output of 4.2V for Li+, and is capable of operating at up to 1.5A without any external components.

Working Principle:The basic operating principle of the MIC79110BML-TR is that it uses an internal voltage regulator, a switch, a current sense resistor, and a charge control comparator to regulate the output voltage of 4.2V. The IC draws a current from VIN, charges the capacitor, then switches the current to the load, while monitoring the voltage across the sense resistor (VRS) to maintain the output voltage. The charge control comparator then ensures that the voltage is within the defined limits by switching the current in the event that the over-voltage or over-current conditions occur.

Application Field:The MIC79110BML-TR is an ideal solution for fixed voltage battery charging and for powering portable devices including mobile phones, tablets, digital cameras, and portable measuring instruments. It is particularly helpful when conditions such as harsh environment, radiation and high temperatures are present. Furthermore, the MIC79110BML-TR can be used for applications that require automatic battery cut-off features, such as emergency lighting and emergency power supplies.

The MIC79110BML-TR is an excellent choice for Li+ battery charging and for powering all kinds of portable electronic devices. It is designed to provide the highest safety and reliability, while providing a low-cost, easy-to-use, highly efficient solution.

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