Texas Instruments

BQ771808DPJR

The BQ771808DPJR is a highly integrated fuel gauge chip manufactured by Texas Instruments. It is designed to provide accurate and precise battery monitoring and protection for a wide range of applications, including portable devices, wearables, and IoT devices.

Description:

The BQ771808DPJR is a system-on-chip (SoC) solution that integrates a microcontroller, a fuel gauge, and a power management unit. It features a high-precision ADC, a temperature sensor, and a real-time clock (RTC) to provide accurate and reliable battery monitoring. The chip also includes a variety of protection features, including overcharge, over-discharge, short-circuit, and thermal protection.

Features:

1. High-precision ADC: The BQ771808DPJR features a high-resolution ADC that allows for accurate measurement of battery voltage, current, and temperature.
2. Fuel gauge: The chip includes a fuel gauge that provides accurate estimation of the remaining battery capacity and runtime.
3. Power management: The BQ771808DPJR includes a power management unit that can be used to control charging and discharging of the battery.
4. Protection features: The chip includes a variety of protection features, including overcharge, over-discharge, short-circuit, and thermal protection.
5. Real-time clock: The BQ771808DPJR includes an RTC that allows for time-stamping of events and logging of battery usage statistics.
6. I2C interface: The chip features an I2C interface that allows for easy communication with a host microcontroller or other system components.

Applications:

The BQ771808DPJR is suitable for a wide range of applications, including:

1. Portable devices: The chip can be used to monitor and protect the battery in portable devices such as smartphones, tablets, and laptops.
2. Wearables: The BQ771808DPJR is well-suited for use in wearable devices such as smartwatches and fitness trackers, where accurate battery monitoring and protection are critical.
3. IoT devices: The chip can be used in IoT devices such as smart home devices, industrial sensors, and medical devices, where accurate battery monitoring and protection are important for reliable operation.
4. Energy harvesting systems: The BQ771808DPJR can be used in energy harvesting systems to monitor and protect the battery that stores the harvested energy.

Overall, the BQ771808DPJR is a highly integrated and versatile fuel gauge chip that provides accurate and reliable battery monitoring and protection for a wide range of applications. Its features and capabilities make it an ideal choice for designers looking to add battery management and protection to their systems.