RT9818C-31GU3

The RT9818C-31GU3 is a multi-functional voltage monitoring and reset protection IC that belongs to the PMIC (Power Management IC) family of supervisors. Developed by Richtek Technology Corporation, the RT9818C-31GU3 offers an optimal solution for any current monitoring and reset protection application that requires precise, reliable, and cost-effective solutions.

The RT9818C-31GU3 is a low voltage, low power monitoring IC that supports a wide range of input voltages (2.5V to 28V). It provides adjustable undervoltage protection, overvoltage protection, over-temperature protection, and current trip protection features. The current trip protection feature ensures that the IC survives any over-current condition that may occur in the system, like from an electrical short, without damage to the IC. This design also offers low power consumption, so it can be used in any battery-based system for long-term reliable protection.

The RT9818C-31GU3 is designed to provide reset protection for a variety of applications such as benchtop equipment, consumer electronics, computer peripherals and automotive applications. By using the under-voltage protection, over-voltage protection, and current trip protection, it is possible to protect against system power supply events and catastrophic faults in a very cost-effective way.

The Working Principle of the RT9818C-31GU3 is based around its input voltage monitor. The monitor is always on, measuring the input voltage, and compares it to a pre-defined voltage threshold. When the input voltage falls below the under-voltage threshold or exceeds the over-voltage threshold, the Monitor triggers the reset output. The amplifying stage of the RT9818C-31GU3 boosts the under-voltage and over-voltage threshold to the required level. This enables the RT9818C-31GU3 to protect systems from the most rigorous under-voltage, over-voltage and current protection demands.

The current protection feature makes the RT9818C-31GU3 an ideal solution for long-term protection of any system. When the current trip protection feature is enabled, it can be set to protect the IC from any over-current condition. When the input current exceeds the current trip threshold, the monitor will immediately trigger the reset output, shutting down the system and protecting it from any potential damage.

The RT9818C-31GU3 is the ideal solution for any current monitoring and reset protection application that requires precise and reliable protection. It offers an economical solution with low power consumption and provides adjustable under-voltage and over-voltage protection, along with current trip protection. Combined with its wide input voltage range and low thermal shutdown temperature, it is sure to protect any system against various over-voltage/under-voltage/over-current conditions without fail.