BQ24159EVM-697

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Evaluation and demonstration boards and kits are an important part of designing, testing, and evaluating systems. The BQ24159EVM-697 is one such board, and it has been an invaluable tool for many engineers seeking to design systems with precise power management capabilities. The board features the TI BQ24159, a robust system-on-chip (SoC) that combines a DC/DC converter, a power path management controller, and a charge interface with safety protection. This article will discuss the application field and working principle of the BQ24159EVM-697 board.

Application Field

The BQ24159EVM-697 is designed to be used in applications that require precise power management. This includes portable medical devices, wearables, power supplies, and more. Its advanced features allow designers to integrate all the necessary power management components into a single chip, reducing board size and simplifying overall system design. Additionally, the board is compatible with batteries ranging from 2.7V-17V, making it ideal for a wide range of applications.

The board also supports several protection features to ensure the safety of the system and its components. These include input current limit protection, output short-circuit protection, charger over-temperature protection, reverse current protection, and more. All of these features make the BQ24159EVM-697 an ideal choice for designers seeking precise, reliable, and safe power management solutions.

Working Principle

The TI BQ24159 is the primary component of the BQ24159EVM-697 board. It is a highly integrated power management system that combines a DC/DC converter, a power path controller, and a charge controller with safety protection. It supports both linear and step-down charging modes, and its input current limit can be set at up to 3.25A.

The DC/DC converter is used to regulate the output voltage of the battery or the input voltage of the system. The power path controller then manages the flow of power between the battery and the system by enabling or disabling the DC/DC converter as needed. The charge controller is responsible for controlling the charging current and ensuring the safety of the system during charging.

The board also includes several advanced features such as power keep mode, power one-shot mode, and USB OTG mode. The power keep mode allows the board to maintain a continuous power path and minimize system power losses. The one-shot mode temporarily reduces maximum battery current for a quick charge, while the USB OTG mode enables the board to be used as a power source for USB peripherals.

The BQ24159EVM-697 board is an integral part of designing and testing systems with precise power management capabilities. Its integrated DC/DC converter, power path controller, and charge controller make it an ideal choice for a wide range of applications, while its safety protection features ensure the safety of both users and components. With its advanced features and robust design, the BQ24159EVM-697 is an invaluable tool in the design and evaluation of power management systems.

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