MediaTek

MT6351V/A

  • The MT6351V/A is a Power Management Integrated Circuit (PMIC) developed by MediaTek. This PMIC is designed to efficiently manage power in mobile devices like smartphones, tablets, and wearables. It provides an integrated solution for managing battery charging, voltage regulation, and thermal protection, while ensuring safe operation of the device’s internal components.

Product description

The MT6351V/A is an advanced PMIC designed to provide efficient power regulation and battery management in mobile devices. By integrating both DC-DC converters and LDO regulators, the MT6351V/A ensures that each component of the device receives the appropriate voltage and current for optimal performance.

  • Efficient Power Regulation: The PMIC incorporates DC-DC converters for high-power components and LDO regulators for low-power components. This dual approach minimizes power loss, reduces heat generation, and maximizes efficiency across the entire system.

  • Battery Charging Management: The MT6351V/A enables fast charging for quicker recharging times, reducing downtime. During charging, the PMIC ensures the battery is charged safely with built-in protections against overvoltage, overcurrent, and thermal issues.

  • Thermal Protection: With thermal throttling, the MT6351V/A reduces power to components that generate excessive heat, ensuring the device operates at safe temperatures. If overheating becomes a serious risk, thermal shutdown cuts power to the system to prevent damage.

  • Power Sequencing and Protection: The MT6351V/A manages the power-up sequence to ensure that all components are powered in the correct order, preventing instability or damage during system startup. Its extensive protection features safeguard the device from issues such as overvoltage, undervoltage, overcurrent, and short-circuit conditions, ensuring safe and reliable operation.

  • Battery Health Monitoring: The PMIC continuously tracks the battery’s voltage, current, and temperature, optimizing charging and discharging cycles. This helps extend the life of the battery and ensures that it is operating within safe limits.

  • I2C Interface: The I2C communication interface allows for dynamic power adjustments based on the device's real-time power needs. This enables the MT6351V/A to intelligently manage power distribution, improving overall device efficiency and extending battery life.


Specification parameters

  • Voltage Regulation:

    • DC-DC converters manage power for high-demand components, while LDO regulators provide low-noise, precise voltage for sensitive components such as memory and sensors.

  • Battery Charging:

    • Designed for Li-ion and Li-polymer batteries.

    • Supports fast charging for improved recharging speeds.

    • Includes overvoltage protection, overcurrent protection, and thermal protection during the charging process to ensure safe operation.

  • Thermal Protection:

    • Thermal throttling reduces power to components if the device starts to overheat, and thermal shutdown shuts down the device to prevent heat damage when temperatures reach critical levels.

  • Power Sequencing:

    • Ensures components receive power in the correct order during the startup process to avoid instability.

  • Protection Features:

    • Overvoltage protection safeguards against excessive voltage, undervoltage protection ensures stable operation, overcurrent protection limits excessive current, and short-circuit protection prevents electrical faults.

  • Battery Health Monitoring:

    • Continuously monitors battery parameters to ensure optimal battery health and efficiency.

  • I2C Communication Interface:

    • Enables real-time adjustments to power settings based on the device’s power needs, improving energy efficiency.


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