TPS65471RHAR

Rapid advances in technology are fueling the development of more powerful and sophisticated battery-powered devices. As a result, the power management integrated circuits (PMICs) that control these batteries must become smaller and more efficient. The Texas Instruments TPS65471RHAR is an example of a PMIC that can handle such an application. This article will look at the application field and working principle of the TPS65471RHAR.

The TPS65471RHAR is a single chip that provides complete power management for embedded systems that require a single power supply. It integrates a buck-boost converter, low-dropout (LDO) linear regulators, a switch-mode current regulator and a buck power switch. This single combination eliminates the need for a separate power management board and therefore reduces board space requirements. Thanks to its highly integrated nature, the TPS65471RHAR significantly reduces costs, power consumption, and component count.

In addition, the TPS65471RHAR can be used to protect against short circuits and overvoltage conditions. It has built-in over-temperature protection, two fault status outputs, an adjustable soft-start, and a system reset timer. This makes it ideal for embedded applications where space and cost savings are important. The chip is also highly configurable, allowing for customization to better meet the requirements of the application.

The TPS65471RHAR works by incorporating a full-bridge battery charger IC and a comprehensive system power management circuit. When the charging process begins, the IC detects the battery voltage and compares it to a programmed value. If the voltage is lower than the programmed value, the IC will enable the charge pump to begin charging the battery. When the battery reaches its programmed voltage, the IC will stop charging.

The TPS65471RHAR also includes a system power management circuit. The main feature of this circuit is that it can autonomously detect changes in load current and adjust the switching bias accordingly. This allows for dynamic power management, ensuring that the system power always remains within the specified limits. Additionally, this feature also protects against overcurrent conditions, as it automatically disconnects the system from the battery when the current exceeds the set limit.

Finally, the TPS65471RHAR is extremely flexible and can be easily customized to meet the requirements of any embedded application. It supports both 5V and 3.3V inputs and wide operating temperatures, making it suitable for a wide range of industrial environments. Additionally, it is highly reliable and supports up to 1.5A of output current.

In summary, the TPS65471RHAR provides a high performance, cost-effective and reliable solution for integrated power management systems. Its highly integrated structure allows for significant space and cost savings. Additionally, its advanced features, such as its dynamic power management, short circuit protection, over-temperature protection and adjustable soft-start make it an ideal choice for embedded power management applications.