BQ294701DSGR

Introduction

The BQ294701DSGR is a battery management integrated circuit developed by Texas Instruments. It is designed to monitor Li-ion batteries, allowing for the measurement of capacity, voltage, temperature, and state-of-charge. It also allows rechargeable battery packs to be monitored for safety and performance. This integrated circuit is particularly well-suited for automotive and portable device applications due its small size and low power consumption.

BQ294701DSGR Application Field and Working Principle

The BQ294701DSGR is a single-chip Li-ion battery monitor that provides tightly integrated protection, monitoring, and communication capabilities. The device is well suited for applications requiring safety monitoring and measurement of pack performance, such as automotive Li-ion battery packs, smart wearable battery packs, and portable medical device battery packs. The BQ294701DSGR integrates a temperature range of −25 °C to 125 °C and a voltage range of 4.2 V to 21 V. The device monitors the battery current, voltage and temperature during normal operation and provides an over-temperature alert if the battery temperature exceeds a user-set threshold. The device also features an on-chip protection circuit that quickly responds to any abnormal situation and provides an appropriate protection action.

The device works by measuring the voltage, temperature, and state of charge of the battery and communicating this information with the microcontroller of the system. The device monitors the voltage and temperature of the battery and compares it to user-defined thresholds. If the battery is outside of the defined thresholds, the device will trigger an alert and shut down the system. The device also monitors the state of charge and communicates it with the microcontroller of the system in order to properly manage the power consumption and ensure optimal performance of the system.

Conclusion

The BQ294701DSGR is a single-chip Li-ion battery monitor that provides integrated protection, monitoring, and communication capabilities. The device is well suited for automotive and portable device applications due its small size and low power consumption. It monitors the voltage, temperature, and state of charge of the battery and communicates this information with the microcontroller of the system in order to ensure optimal performance and safety of the system.