The BQ7721603PWR is an integrated battery management device from Texas Instruments. It is designed for protecting 3-s to 16-s cell Li-ion batteries and provides both voltage and temperature protection. The chip has an embedded delay timer that is used to delay the reaction of the BQ7721603PWR to overvoltage and undervoltage conditions, which allows the device to work with both higher and lower voltages. In addition, the device also provides short-circuit, overcurrent, and reverse polarity protection. The BQ7721603PWR also has an integrated pass-through capability, which allows the supply current to be directly sent to the system load with no external pass-through functions being required. This integrated battery management device is perfect for applications that require both voltage and temperature protection, such as consumer electronics, automotive, communications, and industrial systems.