Texas Instruments

BQ27350PWR

The BQ27350PWR is a highly integrated, multi-functional battery gas gauge chip designed by Texas Instruments (TI). It is specifically designed to provide accurate and reliable monitoring of battery state of charge (SoC), state of health (SoH), and remaining capacity in various battery-powered applications.

Description:

The BQ27350PWR is a member of TI's family of advanced battery gas gauge chips. It is a system-on-chip (SoC) solution that integrates multiple functions, including a fuel gauge, a system supervisor, and a power switch. The chip is designed to support a wide range of battery chemistries, including lithium-ion (Li-ion), lithium-polymer (Li-Po), and lithium-iron-phosphate (LiFePO4) batteries.

Features:

1. Multi-functionality: The BQ27350PWR combines a fuel gauge, system supervisor, and power switch into a single chip, reducing the overall system complexity and component count.
2. Accurate SoC estimation: The chip uses advanced algorithms and models to estimate the battery's SoC with high accuracy, even under varying load conditions and temperatures.
3. Wide input voltage range: The BQ27350PWR can operate with input voltages ranging from 2.5V to 5.5V, making it suitable for a wide range of battery-powered applications.
4. Small form factor: The chip is available in a compact 21-pin, 3mm x 5mm WQFN package, which helps save space on the printed circuit board (PCB).
5. I2C and SPI interfaces: The BQ27350PWR provides both I2C and SPI communication interfaces for easy integration with microcontrollers and other system components.
6. Temperature monitoring: The chip includes an onboard temperature sensor to monitor the battery's temperature and provide thermal protection.
7. Programmable alerts: The BQ27350PWR allows users to set programmable alerts for various battery parameters, such as voltage, current, temperature, and SoC.
8. Low power consumption: The chip is designed for low power consumption, which is essential for battery-powered applications.

Applications:

The BQ27350PWR is suitable for a wide range of battery-powered applications, including:

1. Portable electronics: Smartphones, tablets, and wearable devices.
2. Laptops and notebook computers.
3. Medical devices: Portable medical equipment and wearable health monitors.
4. Consumer electronics: Cameras, audio players, and gaming devices.
5. Industrial equipment: Portable power tools, drones, and robotics.
6. Renewable energy systems: Solar-powered devices and energy storage systems.
7. Automotive applications: Telematics, infotainment systems, and electric vehicle (EV) battery management systems.

In summary, the BQ27350PWR is a versatile and highly integrated battery gas gauge chip that provides accurate and reliable monitoring of battery parameters in various applications. Its compact form factor, low power consumption, and support for multiple battery chemistries make it an attractive choice for designers looking to optimize their battery-powered systems.