MCP73843-410I/MS

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Battery Charging is the process of replenishing energy in the battery after it has been drained over time. The MCP73843-410I/MS is a power management and integrated circuit (PMIC) specifically designed for Lithium-Ion (Li-Ion) and Lithium Polymer (LiPo) batteries with a standard four-cell (4S) Lithium configuration. The IC features USB Type-C detection, buck-boost charging current selection, cell balancing, charge status monitoring, and several other features needed for safe, reliable battery charging.

The MCP73843-410I/MS is an integrated circuit that brings many benefits to the system designer. It enables fast and safe charging of Li-Ion and LiPo batteries while reducing component count, form factor and complexity of the system. Moreover, the IC features USB Type-C port recognition, buck-boost switching of charging current, cell balancing, charge status monitoring, and other features needed for safe and reliable battery charging.

The MCP73843-410I/MS is designed for applications requiring dual-input power management and 4S Lithium charging. It has four key operational modes—forced buck, forced boost, buck-boost, and bypass—to accommodate various designs. The device saves energy by switching between these modes, depending on the external voltage and battery voltage. The intelligent power management resolves the power path to source or sink current to the battery and monitor it for optimal performance.

The MCP73843-410I/MS combines both low-side and high-side MOSFETs, which can be used to configure the power path directly or allow the internal processor to control the system. The device features an on-chip limiting-current sense amplifier, which can be used to detect the voltage across the current-sense resistor. This allows the system to accurately measure the charging current flowing into the battery pack.

The MCP73843-410I/MS has numerous features that increase the accuracy of the charging process and provide greater protection of the battery packs. Together with its power saving characteristics, these features make it a perfect choice for applications needing high performance and reliable battery charging. The IC has an integrated input voltage range and a presettable low-battery threshold for different chemistries, allowing precise cutoff of the battery once it has been fully charged.

The MCP73843-410I/MS features several protection features that protect the battery from over-voltage, over-current, and over-temperature conditions. It implements an under-voltage lockout circuit that prevents erroneous operation in deep-discharge conditions and has several built-in safety mechanisms, such as the integrated power-on reset (POR) circuit and thermal shutdown circuitry.

The MCP73843-410I/MS is a highly integrated power management and battery charging IC designed for high-performance applications. It brings several benefits and features to the system designer, including fast and safe charging, superior power management, USB-C recognition, buck-boost charging current selection, cell balancing, charge status monitoring, and various safety features. The device has a flexible input voltage range, along with a presettable low-battery threshold for different chemistries, ensuring precise charge termination of the battery pack.

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