ACT8727QLCHF-T

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PMIC - Power Management - Specialized

ACT8727QLCHF-T is a highly integrated power management integrated circuit (PMIC) solution specifically designed to power architectures based on Qualcomm Snapdragon mobile platforms. It integrates all the necessary miscellaneous analog and digital power rails, including high-efficiency DC-DC converters, battery charging, real-time power monitoring, and system root-of-trust secure logic.

The ACT8727 is designed for high-current and high bandwidth applications. It uses a patent-pending architecture to support up to 8 low-voltage rails, ranging from 0.8V to 1.8V, simultaneously within a single 8mm x 8mm, 0.4mm-pitch BGA package. This small package size allows for highly integrated mobile platforms to fit within a tight PCB area requirement.

In addition, the ACT8727 integrates key safety features, such as thermal shutdown and battery over-temperature protection, that help further protect the system against unexpected failure modes. It also incorporates an embedded secure memory controller and trusted execution environment that provides hardware-based security, encryption, and authentication.

The ACT8727 is designed for use in a range of applications such as mobile phones, tablets, wearables, and other EN-EA-based consumer product designs. It is rated for operation over the extended industrial temperature range (-40°C to +85°C) and is available in a space-efficient 12x12, 0.4-pitch BGA package.

The ACT8727 is a highly integrated power management IC that can provide up to 5A of continuous current to the system’s power rails. It includes two high-efficiency dc-dc converters with up to 95% efficiency, two low-dropout (LDO) regulators, one switched-mode power supply (SMPS) controller, one hot-swap controller, an I2C-controlled battery charger, plus a system-level power monitoring sub-system.

The dc-dc converters have a maximum output current of 3A and can be configured in buck, boost, or buck/boost modes. They can be simultaneously configured to meet different voltage requirements for each rail. The LDOs have a maximum output current of 2A, and the SMPS controller can provide up to 4A output current.

The I2C-controlled battery charger can support a wide range of battery chemistries, including Li-Ion, Li-Polymer, LiFePO4, Alkaline, and NiMH. It is also capable of controlling the charging current and voltage as well as detect battery temperature.

The power monitoring subsystem integrates two Hall-effect current sensors and one ADC, which monitors voltage and current input/output. This allows the system to detect and report power usage on the various rails. It can also be used to measure the battery state of charge (SoC), total incremental charge (TIC), and total energy (TE) in order to accurately measure battery lifecycle performance.

The ACT8727 also incorporates a powerful embedded secure memory controller and trusted execution environment (TEE) as part of its hardware security solution. High-level security protocols for authentication, encryption, and key generation are provided to protect against unauthorized access.

Overall, the ACT8727QLCHF-T provides an integrated power solution for the Qualcomm Snapdragon mobile platform that is designed to reduce system design complexity, reduce time-to-market, and ensure reliable operation with enhanced security features.

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