MCP73832-4ADI/MC

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MCP73832-4ADI/MC, otherwise known as Microchip’s Charge Controller, is a popular PMIC (power management integrated circuit) that is used to ensure efficient and safe charging of lithium-ion and lithium-polymer batteries and other battery chemistries. It is specifically designed to provide the optimal charging solutions for single-cell Li-ion/Li-Polymer batteries with a contemporary high-performance architecture and a remarkable high level of integration. As such, the MCP73832-4ADI/MC is a powerful and easy to use solution perfect for applications such as mobile phones, portable electronics, portable medical devices, and other battery-powered applications.The MCP73832-4ADI/MC is a highly configurable and versatile solution for single-cell Li-ion/Li-Polymer battery charge management, combining a micro-power RTC with a wide range of battery charging capabilities such as trickle, fast, and pre-charge in addition to temperature, OV, and UV protection to ensure an ideal charging experience. The digital interface allows for the setting of the battery parameters which allows the user to control the charge times, depths, voltages, and temperature limits. The device also offers a wealth of protection features such as safety timers, sleep mode, charge complete detection, and highly accurate charging current setting.The MCP73832-4ADI/MC contains an advanced charge controller, a voltage reference, a current-sense amplifier, a battery regulation comparator, and a dual-charge current regulation loop. It is also equipped with an integrated reverse blocking Schottky diode to eliminate the need for a separate MOSFET for reverse current protection.The MCP73832-4ADI/MC application field is designed for single-cell Li-ion/Li-Polymer batteries as a powerful and easy to use charge controller solution. It provides a wide range of features such as trickle, fast, and pre-charge, temperature, OV, and UV protection, and a digital interface. It also includes protection features such as safety timers, sleep mode, charge complete detection, and highly accurate charging current setting.The working principle of the MCP73832-4ADI/MC is based on the idea of negative voltage feedback. During charging, the output of the charging amp is compared with that of the voltage reference with a low-pass filter. If the charging amp’s output voltage is higher than the voltage reference, current is drawn from the battery and the charge amp’s output voltage is reduced. If the charging amp’s output voltage is lower than the voltage reference, current is sent to the battery and the charge amp’s output voltage is increased. In this way, a negative feedback loop is established which ensures a stable and accurate charge current.In addition to negative voltage feedback, the MCP73832-4ADI/MC also uses a ΔV/Δt end-of-charge detection technique to bring the battery to its maximum terminal voltage without over-charging it. The MCP73832-4ADI/MC also enables a programmable charge current and low battery voltage comparison.In conclusion, the MCP73832-4ADI/MC is a powerful and easy to use PMIC (power management integrated circuit) specifically designed to provide the optimal charging solutions for single-cell Li-ion/Li-Polymer batteries. With a contemporary high-performance architecture, a remarkable high level of integration, and an array of features such as negative voltage feedback, ΔV/Δt end-of-charge detection, and programmable charge current, the MCP73832-4ADI/MC is the perfect solution for battery-powered applications.

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