The BQ771802DPJR is a high-precision, multi-chemistry fuel gauge integrated circuit (IC) manufactured by Texas Instruments. It is designed to accurately measure and monitor the charge levels of rechargeable batteries in various applications, such as portable electronics, wearable devices, and battery packs.
Description:
The BQ771802DPJR is a highly integrated, low-power fuel gauge IC that provides accurate battery charge monitoring and reporting. It features an I2C or SPI interface for easy integration with microcontrollers and other system components.
Features:
- Multi-chemistry support: The BQ771802DPJR supports various battery chemistries, including lithium-ion, lithium-polymer, and lithium-iron-phosphate.
- High accuracy: The IC offers a high accuracy of ±1% over a wide temperature range, ensuring reliable battery charge monitoring.
- Low power consumption: The BQ771802DPJR operates with low power consumption, making it suitable for battery-powered applications.
- Small form factor: The IC is available in a compact 10-pin WSON package, making it easy to integrate into space-constrained designs.
- I2C and SPI interfaces: The BQ771802DPJR provides both I2C and SPI communication interfaces for easy integration with various microcontrollers and system components.
- Temperature compensation: The IC includes temperature compensation to maintain accuracy across different operating temperatures.
- Programmable alerts: The BQ771802DPJR allows users to set programmable alerts for various battery parameters, such as voltage, current, and charge level.
- Protection features: The IC offers overcharge, over-discharge, and over-current protection to safeguard the battery and connected devices.
Applications:
- Portable electronics: The BQ771802DPJR is ideal for use in smartphones, tablets, and other portable devices that require accurate battery charge monitoring.
- Wearable devices: The compact form factor and low power consumption make the IC suitable for wearable devices such as smartwatches and fitness trackers.
- Battery packs: The BQ771802DPJR can be used in battery packs for various applications, including power tools, e-bikes, and energy storage systems.
- IoT devices: The IC is suitable for Internet of Things (IoT) devices that require accurate battery charge monitoring and low power consumption.
- Medical devices: The BQ771802DPJR can be used in medical devices that rely on rechargeable batteries for power, ensuring accurate charge monitoring and patient safety.
In summary, the BQ771802DPJR is a versatile and accurate fuel gauge IC from Texas Instruments that offers multi-chemistry support, high accuracy, low power consumption, and various features to monitor and protect rechargeable batteries in a wide range of applications.