LTC3882IUJ#PBF

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The LTC3882IUJ#PBF is a DC/DC buck-boost switching controller. It is ideally suited in systems that need battery-powered or energy-harvesting system applications. This product addresses the challenge of safely and accurately charging and discharging a single battery cell, or multiple series- or parallel-connected battery cells in a wide range of operating conditions. With an operating temperature range of -40°C to +125°C, this product performs equally well in environments with extreme temperature ranges.

This controller is designed to provide step-up/step-down, forward/reverse, single-ended, and differential control modes, making it a versatile solution for a wide range of battery management and power supply applications for automotive, consumer, industrial, system-on-chip, and wireless devices. The integrated solution enables high-efficiency operation, accurate regulation, dynamic response in tracking, tight regulation loop bandwidth, high spectral noise rejection, and good EMI performance.

Application Field

The LTC3882IUJ#PFB DC/DC switching controller is suitable for a wide range of applications, such as automotive battery management, solar energy storage, fuel cell storage and other energy storage, and battery-powered systems. They also work well as lead acid batteries, maintenance-free/low-maintenance storage, battery high- and low-voltage Ride-through, and general battery-powered equipment. Due to its multiple operating modes and integrated power components and control, it provides a complete and flexible solution for a variety of battery-management and power-supply designs.

Working Principle

The LTC3882IUJ#PFB DC/DC switching controller is based on a synchronous buck-boost switching technique. The principle function of the controller is to regulate the output voltage of a given power supply based on a specific set of parameters. The controller senses the input and output voltages, then modulates the duty cycle of the drive signal accordingly to achieve the desired output voltage. The controller also features multiple digital settings allowing for the accurate control of output voltage, over voltage, under voltage protection, input current limit, output current limit and thermal overload.

The controller can be configured to operate in multiple operating modes, including forward, reverse, single-ended, and differential control. The integrated solution enables high-efficiency operation, accurate regulation, dynamic response in tracking, tight regulation loop bandwidth, high spectral noise rejection, and good EMI performance. The controller can be connected in either buck, boost, single-ended, or buck-boost configurations, and can be set up to meet the specific power requirements of the system.

Overall, the LTC3882IUJ#PFB DC/DC switching controller is an ideal choice for battery-powered or energy-harvesting system applications. It provides a comprehensive and flexible solution for a variety of power supply and battery management designs, is easy to implement, and provides high-efficiency, accurate regulation, and good EMI performance.

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