MCP73843-420I/MS

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The MCP73843-420I/MS is a special type of Power Management Integrated Circuit (PMIC) that specializes in battery charging. It has a wide range of applications including in consumer electronics, mobile devices, mobile charging, and medical applications. In addition, it is also used in automated test equipment and industrial applications.

The MCP73843-420I/MS PMIC is a low-power device that provides power management for battery charging applications. It is an ideal choice for a wide range of applications that require charge cycle and management of lithium-ion and other battery technologies. The system also comes with an integrated current-limited and thermal foldback protection, which is useful for applications where a specific maximum power limit must be maintained.

The MCP73843-420I/MS PMIC enables a high-efficiency, low-cost and reliable battery management solution. It provides a simplified four-level current limited charge cycle, providing long lifetime and good low temperature performance with fewer components. The MCP73843-420I/MS PMIC offers a single-cell Linear Li-Ion/Li-PO charge cycle and a two-cell Polymer Li-ion charge cycle, making it an ideal choice for providing reliable and cost-effective power management for many mobile and consumer electronic applications.

The working principle of the MCP73843-420I/MS PMIC is fairly straightforward. The main component of the device is the charging circuit, which is responsible for controlling the charge current applied to the battery. The Charge Cycle begins when the current drawn from the battery is less than the charging current set by the device. Once the current drawn from the battery is equal to or greater than the charging current, the device will enter the Constant Voltage (CV) phase. During this phase, the charging circuit will maintain the battery voltage at a constant level. The charging current will slowly decline as the battery voltage reaches its full potential. This cycle will repeat until the current drawn by the battery is less than the charge current set by the device.

Once the battery has reached its full potential, the device will enter the Float Charging phase. During this phase, the voltage is maintained at a constant level and is used to maintain the battery’s charge. The device will charge the battery if the current drawn from the battery is still less than the charging current set by the device. This cycle will continue until the battery is fully charged or until the current drawn by the battery is greater than the charging current set by the device. When this occurs, the device will enter the Discharge Don’t Care phase. During this phase, the voltage produced by the device will be disabled and the device will remain inactive until the current drawn by the battery is less than or equal to the charging current set by the device.

In summary, the MCP73843-420I/MS PMIC is a powerful and reliable battery management device that provides reliable and cost-effective power management for many mobile and consumer electronic applications. It is an ideal choice for a wide range of applications that require charge cycle and management of lithium-ion and other battery technologies. The device provides a simplified four-level current limited charge cycle, providing long lifetime and good low-temperature performance with fewer components.

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