L9822N

PMIC - Power Distribution Switches, Load Drivers

The “L9822N” is an integrated part of “PMIC”, which stands for Power Management IC. It is designed to provide power distribution and load-driving capabilities. This section will explain the application field of the L9822N and its working principle.

Application Field

The L9822N is specially designed for applications which require stable and controlled electrical power. It is suitable for applications such as medical devices, mobile equipment, office automation, home entertainment, household appliances, and automotive electronics. It can be used for a variety of functions such as power distribution, load driving, and power management. The L9822N is also suitable for tasks where low levels of power are needed, such as providing power for LED\'s, displays, sensors, and control chips.

Working Principle

The L9822N operates using a low dropout technology which provides a very low voltage drop across the device, ensuring that the design is power saving. The breakdown voltage and minimal input current requirement improves the designs’ efficiency and reliability. The device is also designed to be reversed-polarity protected, which helps ensure that accidental mis-connections will not cause damage to the device or the system.

The power distribution switch of the L9822N is capable of providing up to 8 amps of output current at one time. It can be used as a high side or low side switch. It has adjustable hysteresis, making it easy to control the switching behaviour. The device can be used in a variety of applications, such as controlling DC-DC converters, controlling LEDs, or providing power for sensor circuits.

The load driver of the L9822N provides up to 1.2 amps of driver current to drives loads and can be used to drive a wide range of low power circuits. The device is capable of providing very low output offset voltage as well as wide electrical control range. This makes it suitable for driving sensors, solenoid valves, and other low power circuits.

The L9822N also contains a dual-channel current limiter which provides over current protection. It is designed to prevent excessive current from flowing through the device. This helps ensure that the system is protected from damage due to an abnormal amount of current being drawn through the system.

Conclusion

The L9822N is an integrated part of PMIC, designed to provide power distribution and load driving capabilities. Its application field includes medical devices, mobile equipment, office automation, home entertainment, household appliances, and automotive electronics. Its working principle involves a low dropout technology, providing a very low voltage drop across the device. It also has adjustable hysteresis, a power distribution switch which can provide up to 8 amps of output current, and a load driver providing up to 1.2 amps of output current. It also contains a dual-channel current limiter which provides over-current protection.