MCP73833-FCI/MF

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The Linear Technology Corporation\'s MCP73833-FCI/MF integrated circuit (IC) is a feature-rich, highly efficient, and cost-effective power management IC for charging single-cell Li-Ion or Li-Polymer battery packs. The flexibility of this IC helps designers to easily complete a high-performance, space-bound battery charging system design to power their handheld device applications.

MCP73833-FCI/MF is used as a power management system in PMIC-Battery Chargers, used in applications such as smartphones and tablets. It is a single chip solution that combines a switching regulator with a buck converter, power MOSFETs, voltage monitoring scontrol, and transistor drivers into a single device. With its programmable low voltage and temperature thresholds, it offers versatile and extensive user control of the charge parameters. It is also one of the few device solutions that offer a Variable Voltage Weakening Technology, that performs fast charging, which enables the battery to charge faster. With its features, it offers incredible efficiencies and long battery life.

The MCP73833-FCI/MF is a monolithic IC with an operating voltage range of 2.7V to 18V. It has three integrated buck converters and is equipped with an Intelligent Thermal Regulation (ITR) feature, which monitors the temperature of the battery, ensuring safe and efficient operation. The device has an input voltage sense option, which helps to regulate the charging, as well as a soft-start feature, which allows the charger to quickly enter a stable, optimized state. In addition, it also has several safety features, such as overvoltage, overcurrent, and short-circuit protection. It also provides adjustable thermal regulation to ensure that the device stays at an ideal temperature operating range. This helps to prevent cell temperature drift and prolongs the battery\'s life.

The MCP73833-FCI/MF is available in two different packages – QFN (quad flat no-lead) and either a 4x4 SOIC (small outline IC) or a 5x5 MSOP (micro scale outline package). The IC is pin-compatible across the different packages, allowing designers to easily select the most appropriate power solution for their application. The device is also compliant with the USB Battery Charging Specification version 1.2, making it a viable choice for charger designs. It is also compatible with the US EPA\'s Energy Star program, allowing for efficient operation.

The working principle of the MCP73833-FCI/MF IC is simple. A low drop-out (LDO) regulator is used in order to regulate the input voltage, making sure that the IC always has a steady supply available. The incoming voltage is then fed to a buck converter, which then creates the output voltage required by the battery cell. The IC is then able to monitor the voltage level in order to ensure that it is always at the desired level. The voltage can be adjusted, if necessary, and the IC will also monitor the temperature of the cell, in order to prevent overcharging.

The MCP73833-FCI/MF is an efficient and cost-effective solution for portable device designs that require fast and reliable battery charging capabilities. Its features and power management capabilities make it an attractive device for PMIC-Battery Chargers. As such, it is a popular choice for modern battery charging systems in a wide range of mobile and portable market segments. The device is also easy to use and highly efficient, making it an ideal choice for many applications.

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