MediaTek

MT6371P/A

  • The MT6371P/A is a Power Management Integrated Circuit (PMIC) developed by MediaTek, designed to handle power regulation and management for portable electronic devices, particularly smartphones and tablets. It is part of a broader suite of PMICs that MediaTek develops to improve power efficiency, extend battery life, and ensure safe operation of mobile devices and other portable electronics.

Product description

The MT6371P/A is designed to be a comprehensive power management IC (PMIC) for mobile devices and portable electronics. It ensures that the device operates efficiently and safely by handling all aspects of power regulation, battery charging, and thermal management.

The voltage regulation features of the MT6371P/A are critical for ensuring the device’s internal components receive the correct voltage. It uses DC-DC converters for high-efficiency voltage conversion, reducing energy waste and extending battery life. The LDO regulators provide precise voltage to low-power components, ensuring they operate optimally and do not experience instability due to fluctuations in power supply.

The battery charging management capabilities of the MT6371P/A are vital for ensuring safe and efficient charging of Lithium-ion or Lithium-polymer batteries, which are common in modern devices. The PMIC supports fast charging, allowing the battery to recharge more quickly without compromising safety. The overcurrent protection feature ensures that excessive current does not flow into the battery, which could otherwise damage it or cause overheating.

Thermal management is another crucial feature of the MT6371P/A. The PMIC monitors the device’s temperature and can adjust power delivery to specific components through thermal throttling if temperatures rise too high. This prevents overheating and helps maintain device stability during heavy usage. If the temperature exceeds a safe threshold, the thermal shutdown function ensures that the device powers down entirely, protecting the internal components from damage.

Power sequencing ensures that all components of the device receive power in the correct order when the device is powered on. This feature is essential to prevent issues during startup, such as instability or damage to sensitive components like the processor or memory.

The protection features integrated into the MT6371P/A are designed to safeguard the device against various electrical faults. These include overvoltage protection, undervoltage protection, overcurrent protection, and short-circuit protection, all of which work together to ensure the device remains safe in a wide range of operating conditions.

Battery health is also continuously monitored by the PMIC, with real-time tracking of battery voltage, current, and temperature. This ensures that the battery remains within optimal conditions, preventing overcharging, deep discharge, or overheating, which can significantly degrade battery performance and reduce its lifespan.

The I2C communication interface allows the MT6371P/A to transmit power-related data to the system’s processor, enabling more efficient and dynamic power management. The processor can make adjustments in real-time based on the information received, optimizing the device’s performance and power consumption.


Specification parameters

  • Voltage Regulation:

    • Provides efficient DC-DC converters that convert battery voltage to appropriate levels for power-hungry components like the processor and display.

    • Includes LDO regulators to provide precise voltage regulation for low-power components such as sensors, memory, and peripherals.

  • Battery Charging:

    • Supports Lithium-ion and Lithium-polymer battery charging.

    • Capable of fast charging with built-in safety features.

    • Includes overcurrent and overvoltage protection to protect the battery during charging.

    • Supports temperature monitoring to ensure safe charging temperatures and prevent overheating.

  • Thermal Management:

    • Monitors the device’s temperature to avoid overheating during intensive tasks or charging.

    • Supports thermal throttling to reduce power to specific components to maintain a safe temperature.

    • Features thermal shutdown to power off the device completely if temperatures exceed critical levels.

  • Power Sequencing:

    • Ensures that all components receive power in the correct sequence during device startup to prevent instability.

  • Protection Features:

    • Includes overvoltage protection to protect against power surges.

    • Undervoltage protection ensures that the device remains stable during low power conditions.

    • Overcurrent protection prevents damage due to excessive current.

    • Short-circuit protection safeguards the system in the event of a power short.

  • Battery Health Monitoring:

    • Monitors the voltage, current, and temperature of the battery in real time, helping prevent damage and ensuring long battery life.

  • Communication Interface:

    • Uses I2C for efficient communication with the system’s processor, providing real-time data on power consumption, battery status, and temperature.


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