ACT8848QM135-T

Introduction

The ACT8848QM135-T is a Power Management Integrated Circuit (PMIC) designed to efficiently manage the power requirements of various electronic devices. As a type of specialized power management product, the ACT8848QM135-T helps to protect the device from power failure while allowing the device to run at maximum performance.

Application Field

The ACT8848QM135-T is used in a wide range of application areas, such as mobile computing, cloud computing, automotive, industrial, medical and aerospace applications. The device typically serves as a power supply manager and/or controller, providing multiple-channel power outputs that can be adjusted to power different components within the device.

In addition to providing consistent and reliable power management, the ACT8848QM135-T can also help prevent failure, overvoltage, and overcurrent events from occurring in the device. The device also provides system power sequencing, allowing power to be controlled in an orderly manner while allowing the system to remain stable.

Working Principle

The ACT8848QM135-T is a 3.2V to 5.5V-input, integrated PMIC power management solution. The device consists of 10 buck regulators with 1 to 8 modules, two buck LED integrators, two stepping regulators with one or two enable signals, two low-dropout (LDO) linear regulators, and one analog-to-digital/digital-to-analog converter (ADC/DAC).

The buck regulators provide up to 4A of output current and can be used to efficiently manage power for various components. The buck LED integrators combine two buck regulators, allowing for further control over the power output for multiple LEDs, providing control for things such as brightness and power cycling. The stepping regulators have integrated power switches, ideal for devices such as micro-controllers, as among other things they can provide voltage rails to power up the devices. The LDOs provide low current levels and voltage regulation, while the ADC/DAC can be useful for managing communication protocols.

The device also provides a number of safety features. It is equipped with a number of thermal protection measures, such as over-current protection and short circuit protection. It has over-temperature detection, allowing the system to shut down if the device is running too hot, avoiding any risk of performance degradation or electrical damage. In addition, it has an integrated power-on reset and power-down reset, providing a controlled power cycling sequence, allowing for reliable power delivery when the device is first being powered up or shut down.

Conclusion

The ACT8848QM135-T is a specialized PMIC designed to provide efficient and reliable power management for a wide range of applications. The device provides numerous power management features such as buck regulators, buck LED integrators, stepping regulators and LDOs, as well as a built-in ADC/DAC and a variety of safety measures. The device also offers consistent and reliable power sequencing, helping to maintain device stability.