ACT8865QI303-T Integrated Circuits (ICs)

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The ACT8865QI303-T is a highly integrated power management system-on-chip. It combines an efficient three-phase power system and complex control functions into a single compact package. The wide range of features makes the ACT8865QI303-T ideal for a variety of applications. It offers an unmatched combination of speed, accuracy and efficiency. The device is targeted at applications requiring low complexity, high energy efficiency, a small form factor and high reliability.

Overview

The ACT8865QI303-T is a low power, highly efficient, three-phase power management system-on-chip (PMIC). It features a high-precision 32-bit voltage regulator, along with a range of current control and protection functions. The device is designed for applications such as communications, data center, automotive, industrial and automotive power applications. The ACT8865QI303-T offers an integrated solution for voltage regulation and current protection, along with a low power operating mode for power optimization and flexibility for system design.

ACT8865QI303-T Application Fields

The ACT8865QI303-T is designed for use in a wide range of applications including:

• Communications – Enabling communication nodes to run in a reliable and energy-efficient manner.
• Data Centers - Providing reliable and stable power in large data centers.
• Automotive - Automotive applications requiring optimal power efficiency and low power operating conditions.
• Industrial - Rugged industrial applications require efficient yet stable power.
• Portable Electronics – Devices that require high power efficiency in a small package.

ACT8865QI303-T Working Principle

The ACT8865QI303-T is a PMIC that integrates a voltage regulator, current protection and system control functions into a single device. The device consists of three isolated power domains—5V, 3.3V and 1.8V power domain. The 5V domain is used for the I/O circuit. The 3.3V domain and the 1.8Vdomain are used for the application specific circuits. Each power domain is regulated by a separate linear regulator stage with over-current protection.

The voltage and current regulation of the device is managed with a digital control logic. The digital control provides multiple operation modes—Sleep, Low Power and High Performance—for optimal power efficiency and varying load requirements. The system can be configured for the required operational mode using the SPI or I2C interface, providing the desired power efficiency and minimal power consumption for the system.

In addition to power management and control functions, the ACT8865QI303-T also provides a wide range of protection functions. It offers an advanced protection scheme, which protects against over-voltage, over-current and short-circuit conditions. The device is also equipped with a thermal protection system, which trips when the internal temperature of the device exceeds a programmed threshold.

Conclusion

The ACT8865QI303-T is a highly integrated power management IC providing an optimal power solution for a wide range of applications. The device incorporates an advanced three-phase synchronous power system, control logic, and protection features into a single compact package. The integrated features make the ACT8865QI303-T an ideal choice for applications requiring low complexity, high energy efficiency, small form factor, and high reliability.

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