DS1819CR-20-U

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PMIC – Supervisors are widely used electric semiconductor devices which deal with power applications around the world. These devices are essentially used for controlling and management purposes along with ensuring the safety and performance of electrical circuits. In this article, we will be discussing one such device – the DS1819CR-20-U – and the application fields and principles of work of the same.

The DS1819CR-20-U is an integrated device developed to meet the requirements of low supply voltage systems such as memory systems, consumer electronics and automotive electronics. It is capable of delivering an adjustable source of ±1.25V dual supply voltages to ensure that the system stays within working voltage range even during cases of current surges or over-voltage protection.

This device works on the Low Side Controlled High Side System battery monitoring principle. This principle involves the low-side controlled system N-channel MOSFET that is present on the board which is active when a voltage drop below the nominal value happens. This is then followed by the L90 linear regulator being activated in order to compensate for the voltage drop and maintain the supply voltage at the nominal level.

The DS1819CR-20-U device also considers several parameters like thermal over-stress, current limit and over-voltage occurring on low side for safety purposes. This device also provides additional information that helps in improved analysis and maintenance of the system such as voltage and current sensing and sensing failure conditions which helps the device detect any potential failures or system malfunctions so that it can be rectified in timely manner.

Apart from being used in consumer electronics, the DS1819CR-20-U is also used in automotive electronic systems. The device helps to ensure that there are no current and voltage related surges, keeping the system in nominal working condition. The device can sense various voltages and current conditions such as over-voltage, low voltage, and over-current. It also has the capability to resist high temperature environment which makes it suitable for automotive electronic system.

The DS1819CR-20-U also integrates a power switch which comprises of an input voltage comparator, an overcurrent comparator and a circuit between the two mediating between the input voltage and current conditions. This power switch helps by manually shutting down the system when necessary and also to regulate the input current of the system for safety purposes.

In conclusion, the DS1819CR-20-U is an optimized device which can be used to control, monitor and manage power applications in consumer electronics and the automotive industry. This device offers the advantages of a highly adjustable dual supply voltage for over-voltage protection, current protection and temperature resistance. Its low side controlled high side systems ensures smooth and consistent performance in even the most extreme conditions.

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