ACT8727QLCHL-T

ACT8727QLCHL-T Application and Working Principle

The ACT8727QLCHL-T is a multi-output intelligent power management integrated circuit (PMIC) designed for applications like digital cameras and personal electronics. Developed by AnalogicTech, the PMIC integrates multiple functions such as battery and system voltage monitoring, charging, system voltage control, and power-on reset control into a single device. The device also provides comprehensive protection features such as over-current and thermal protection, as well as automatic system power-off and system power save modes.

Power Management Integrated Circuit

The ACT8727QLCHL-T is a type of power management integrated circuit, usually abbreviated as PMIC. PMICs are semiconductor components which are designed to regulate the power supply of a device. They offer a range of features, including over-current, under-voltage, and thermal protection. Moreover, with integrated charging and battery management features, PMICs can provide extended battery life and improved system performance.

Application Field

The ACT8727QLCHL-T provides a complete power management solution for handheld and embedded applications such as digital cameras, audio devices and personal electronics. It integrates a linear chargers with low-battery detector, system voltage and charge current monitor, power-on reset control, and over-current protection. Moreover, its low power consumption, extended battery and system voltage ranges, and low charge current values make the ACT8727QLCHL-T ideal for devices powered by USB or other external power supplies.

Working Principle

The ACT8727QLCHL-T is based on a two-stage architecture which incorporates two distinct current control loops. The first control loop regulates the input voltage from the external power source, and the second regulates the current through the battery. The device offers a wide range of input voltages and charge currents, and offers both linear and pulse width modulation (PWM) charging modes. The PWM charging mode enables the device to charge quickly, while the linear charging mode extends the service life of the batteries. In addition, the device features a comprehensive protection mechanism that consistently monitors the charge current, charge voltage, and battery temperature to protect the system from damage due to overload or over-temperature.

Conclusion

The ACT8727QLCHL-T provides a cost-effective and efficient power management solution for both battery and AC powered applications. Its two-stage architecture ensures that the voltage and current levels are regulated properly, while its integrated protection features protect the device and system from damage due to overload or over-temperature. As a result, the ACT8727QLCHL-T provides extended battery life and improved system performance for a variety of devices such as digital cameras, audio devices, and personal electronics.