Product description
The MT6380N/B is a highly integrated PMIC designed to manage the power distribution and regulation for modern mobile devices, such as smartphones, tablets, and other portable gadgets. The PMIC’s primary role is to ensure that each component in the system receives the correct voltage while maintaining energy efficiency and extending the device's battery life.
One of the most important aspects of the MT6380N/B is its integration of DC-DC converters. These converters are responsible for converting the battery’s input voltage to the appropriate levels required by the device’s high-power components, such as the processor, display, and graphics unit. By efficiently converting the voltage, the MT6380N/B minimizes energy loss, leading to better battery life and reduced heat generation. Along with DC-DC converters, the PMIC also includes LDO regulators. These LDO regulators provide precise, low-dropout voltage regulation for sensitive components like memory, sensors, and other low-power peripherals, ensuring that these components are powered reliably and efficiently.
Battery management is a critical function of any PMIC, and the MT6380N/B excels in this area. It supports fast charging for Lithium-ion and Lithium-polymer batteries, enabling quicker recharge times. The PMIC ensures the charging process is safe by regulating the charging current and voltage, preventing overcharging and overheating. Furthermore, it includes overcurrent protection, which helps prevent excessive charging currents from damaging the battery.
The thermal management system in the MT6380N/B ensures that the device remains within safe operating temperatures. By constantly monitoring the device’s temperature, the PMIC can initiate thermal throttling, which reduces the power supplied to specific components if the temperature gets too high. In extreme cases, the MT6380N/B has a thermal shutdown feature that powers down the device to prevent overheating damage.
Power sequencing is another key feature of the MT6380N/B. During device startup, the PMIC ensures that power is supplied in the correct order to all components, preventing instability or malfunction that could arise from improper power delivery.
The protection features integrated into the MT6380N/B are essential for safeguarding the device against various electrical faults. Overvoltage protection ensures that voltage surges do not damage sensitive components, while undervoltage protection ensures that the system remains stable during low power conditions. Overcurrent protection prevents excessive current from damaging components, and short-circuit protection guards against faults in the power distribution system.
To enhance the battery’s lifespan, the MT6380N/B continuously monitors battery voltage, current, and temperature. By ensuring that the battery remains within optimal operating conditions, the PMIC helps avoid deep discharges, overcharging, and overheating, all of which can degrade battery performance over time.
The communication interface of the MT6380N/B uses the I2C protocol, enabling the system’s processor to communicate with the PMIC. This allows real-time monitoring of power consumption, battery health, and temperature, enabling more efficient power management and optimization of overall device performance.
Specification parameters
Voltage Regulation:
Includes DC-DC converters to efficiently convert the battery voltage to required levels for various high-power components (e.g., 1.8V, 2.8V, 3.3V, etc.).
Uses LDO regulators for precise voltage regulation for sensitive components like memory, sensors, and other peripherals.
Battery Charging:
Supports Lithium-ion and Lithium-polymer battery charging.
Features fast charging support to reduce charging times while maintaining safety.
Includes overcurrent protection and overvoltage protection during charging to prevent damage to the battery or device.
Thermal protection to prevent overheating during charging.
Thermal Management:
Temperature monitoring ensures the device does not overheat during heavy usage.
Thermal throttling reduces power to specific components to maintain safe temperatures.
Thermal shutdown automatically powers down the device in the event of excessive heat buildup.
Power Sequencing:
Ensures proper startup sequencing of the device’s components to avoid instability.
Protection Features:
Overvoltage protection to guard against voltage spikes.
Undervoltage protection to ensure the device operates correctly even in low-power conditions.
Overcurrent protection to avoid electrical faults that could damage the system.
Short-circuit protection to protect the device from power surges or faults.
Battery Monitoring:
Tracks battery voltage, current, and temperature to ensure the battery remains within safe operational limits and to enhance longevity.
Communication Interface:
The MT6380N/B communicates with the system’s processor and other components using I2C to report on power consumption, battery status, and temperature.
