BQ24086DRCR Datasheet/PDFBQ24086DRCR is a power management integrated circuit first released by Texas Instruments Inc. This device combines battery charging, system power management, and protection functions into one package. It is popularly used in system solutions where the power is supplied by a battery.
Application Field
The BQ24086DRCR is most frequently used in portable battery powered systems, such as mobile phones, laptops, and tablets. It is also used in many wearable devices, medical equipment and other electronics that require a reliable battery.
Working Principle
The BQ24086DRCR is a multi-mode power management integrated circuit (PMIC) for applications that require power from a single-cell battery. It is a complete charging solution from the source to the system. It includes an internal switch mode battery charger, two types of power source selectors, step up and step down DC-DC converters, a system power monitor, and protection features to protect the battery and system they are powering.
The device has an internal Passive Power Selector that supports most common power sources like USB, AC adapter, and wall charger. It also features an adjustable High-Side Power Selector that allows the device to switch between multiple power sources in un-powered and powered state. The battery charger features an internal synchronous rectifier and an adjustable switching frequency that can be configured to match the application’s requirements. Together with the internal step-down DC-DC converters, the BQ24086DRCR can charge the battery up to 2A and provide handful of output voltage options.
The device also provides additional features to protect the system, such as Over Current Protection (OCP) and Over Temperature Protection (OTP). The OCP feature prevents damage to the device and system by cutting off the power supply when an over current event occurs. The OTP feature will also cut off the power supply when the board temperature reaches a unsafe level.
Conclusion
The BQ24086DRCR is a low-cost, single-cell PMIC from Texas Instruments Inc. It provides a comprehensive power source selection, charging, and protection for a wide range of battery-powered applications. It offers exceptional flexibility, with multiple power sources, adjustable power selectors, and adjustable output voltage, making it a great choice for portable and wearable devices.