Power management chip refers to the integrated circuit chip that converts or controls the power supply to provide the appropriate voltage or current for the normal operation of the load. It is a very important chip type in analog integrated circuits, generally including power conversion chips, reference chips, power switch chips, battery management chips and other categories, as well as power products for some specific application scenarios.
In addition, power conversion chips are usually divided into DC-DC and LDO chips according to the chip architecture. For complex processor chips or complex systems with multiple load chips, multiple power rails are often required. To meet stringent timing requirements, some systems also require features such as voltage monitoring, watchdog, and communication interfaces. Integrating these capabilities into power-based chips has spawned product categories such as PMU and SBC.
Power management chip role
The power management chip is used to manage and control power supplies. The main functions include:
Power supply management: The power management chip is mainly responsible for power supply management, which can ensure the normal operation of the device by controlling the battery power, charging current, discharge current, etc. The power management chip can accurately control the current and voltage by monitoring the state of the battery, so as to realize the charging, discharging and status monitoring of the battery.
Fault protection: The power management chip has multiple fault protection mechanisms, which can monitor and protect the components in the mobile device, so as to prevent the device from over-charging, over-discharge, over-current and other problems to ensure the safety of the device in use.
Charge control: The power management chip can control the charging state of the device according to the need, so these chips are often used in the charge power control circuit. By controlling the charging current and voltage, the charging mode can be adjusted to improve the charging efficiency and ensure the battery life of the device.
Energy savings: Power management chips can achieve energy savings in a variety of ways, such as reducing battery power consumption, reducing component active power, and improving efficiency. These methods help to improve battery life while also helping to reduce the energy consumption of the device.
At present, power management chips have been widely used in many fields. Among them, different kinds of power chips will be used in the electronic components of new energy vehicles according to the application needs. With the development of automobiles to electrification, networking and intelligence, more and more applications of bicycle power chips will be applied, and the consumption of new energy vehicle power chips will exceed 100.
The typical application case of the power chip in the automotive industry is the application of the power chip in the automotive motor controller, which is mainly used to generate various types of secondary power supplies, such as providing working power or reference level for the main control chip, related sampling circuit, logic circuit, and power device driver circuit.
In the field of smart home, the power management chip can realize the power consumption control of smart home devices. For example, through the power management chip, the smart socket can achieve the effect of on-demand power supply and reduce unnecessary power consumption.
In the field of e-commerce, the power management chip can realize the power supply control of the mobile terminal to avoid the occurrence of battery damage, explosion and other problems. At the same time, the power management chip can also prevent safety problems such as short circuit of mobile terminals caused by excessive charger current.
In the field of energy management, power management chips can realize the monitoring and management of energy systems, including the control and management of energy systems such as photovoltaic cells, wind turbines, and hydroelectric generators, making energy use more efficient and sustainable.
Post time: Jan-15-2024