BQ26220PWRG4

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Power management integrative circuits (PMICs) have become increasingly important components in modern battery powered electronic devices, as they are capable of efficiently managing the complex relationship between battery, device, and environment. As one such PMIC, the Texas Instruments BQ26220PWRG4 is a versatile and highly integrative single-cell battery charger and fuel gauge designed for use primarily in portable consumer electronics and battery-powered IoT edge devices.

BQ26220PWRG4 is a high-integration device with multiple features, which combines powered-on time measurement and full battery recognition in one component, providing superior charge and discharge control. This can enable improved system efficiency and extend battery life up to 30- 50%.

The device is based on the Impedance Track™ algorithm, which can accurately measure the battery’s SoC and simple charging/discharging profiles without any manual programming from the user. Furthermore, unlike many other fuel gauge solutions, the BQ26220PWRG4 has ±1% accuracy in estimating the remaining capacity of a battery and an industry-leading SoC resolution of 0.15625%.

In terms of safety and protection, the BQ26220PWRG4 features an advanced pre-charge function that eliminates long pre-charge times, as well as an integrated overvoltage,overcurrent and reverse current protection. This helps protect the device from damage in the event of an overload, and ensures reliable and safe operation at all times.

In addition, this device can achieve up to a 1uA of shutdown current and 22uA of active quiescent current when configured in a low-power mode. This allows the device to be used in incredibly small and efficient battery-powered designs.

The BQ26220PWRG4 is an ideal solution for IoT edge applications, such as smartwatches, fitness trackers, medical devices, toys, and wearables. It provides a powerful, low-power solution with many advanced features for battery management and optimization. Additionally, it is capable of supporting bothNiCd and Li-ion batteries with 3.3V to 5.5V input voltage. The device is available in a WLCSP-14 package.

In summary, the Texas Instruments BQ26220PWRG4 is a high-integration and versatile device designed specifically for single-cell battery applications. It features advanced battery charging capabilities, highly accurate SoC measurements, and a range of safety features. It is well suited for use in portable consumer electronics, battery-powered IoT edge devices, and other battery-powered applications.

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