MCP73834T-GPI/UN

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The MCP73834T-GPI/UN is a charge management controller that supports a wide range of applications and battery chemistries, including both lithium-ion (Li-ion) and nickel-metal hydride (NiMH) batteries. It is a very efficient and compact solution that provides system designers with the means to design complete power management solutions that meet their specific requirements. The device is built with a high-efficiency, low-dropout (LDO) synchronous buck regulator that allows for maximum power efficiency during battery charging.

The MCP73834T-GPI/UN operates with a wide input voltage range, from 3V to 20V and can provide up to 3A of regulated constant current for battery charging. Integration of a low on-resistance MOSFET allows for low operating and low quiescent current. The device is also capable of controlling one or two cells in series due to the support of the dual cell mode.

The MCP73834T-GPI/UN is designed to offer a complete solution for battery charging applications. It integrates a wide range of safety features such as an input overvoltage monitor, current and temperature monitors, and a three-stage charging algorithm that helps extend the lifetime of the battery cells. Additionally, the device incorporates a wide range of charge status indicators including an end-of-charge indicator, an input supply detecting circuit, and a battery temperature alarm.

The charge management controller supports a variety of different battery chemistries and features a constant-current/constant-voltage (CC/CV) charging algorithm with programmable charge current. The device also offers two charging profiles with five programmable parameters, allowing the designer to optimize the charge profile for their specific application. The integrated charge status indicators and safe timer provide feedback to the host controller on the state of battery charging in order that an appropriate action can be taken.

The device is specifically designed for use in applications such as smartphones, digital cameras, industrial control systems, and other portable power management applications. Its simple 3-wire interface eliminates the need for external FETs or current sensing, while the ability to use cheaper, lower current power sources makes the MCP73834T-GPI/UN ideal for cost-sensitive applications.

In summary, the MCP73834T-GPI/UN is an efficient, compact and feature-rich PMIC platform specifically designed for battery charging applications. It integrates a wide range of safety features and charge status indicators, as well as a dual cell charging mode, allowing system designers to create a highly efficient and reliable battery charging solution that meets their specific application requirements.

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