BQ24031RHLT

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The BQ24031RHLT is a high-performance single-input, dual-output battery charger for lithium-ion and Li-Polymer batteries. It is a PMIC (Power Management Integrated Circuit) specifically designed for use in portable applications such as mobile phones and PDAs. The chip integrates a highly efficient switched-mode battery charger, a step-up converter, and several other power management functions onto a single chip.

The BQ24031RHLT is based on the standard single-input, dual-output (SIDO) power management architecture, which allows the device to charge both Li-Ion and Li-Polymer battery types at up to 2A. The SIDO architecture also enables integration of several power management functions, such as overvoltage protection, undervoltage protection, battery over-temperature protection, and power path management. All of these features reduce the overall power system design complexity by providing a single power management IC for multiple battery types.

In addition to the features provided by the SIDO architecture, the BQ24031RHLT also includes a dedicated buck-boost converter for powering the system\'s platform processor. The buck-boost converter dynamically adjusts its output voltage in response to differences between the battery\'s voltage and the processor\'s voltage, allowing the processor to continue operations despite significant fluctuations in the battery\'s voltage. This feature significantly reduces system power consumption, helping to extend battery life.

The BQ24031RHLT also integrates a charging status indicator and a low-voltage disconnect circuit, providing system designers with the ability to monitor the charging process and to disconnect the battery from the system in the event of a low-voltage condition. This feature is critical in applications where extended battery life is a key design goal.

Overall, the BQ24031RHLT is an ideal choice for portable power management applications. Its single-chip architecture and range of integrated features provide designers with an efficient and cost-effective power solution, while its low-voltage protection and charging status indicators ensure that the system has a safe and reliable power supply.

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