RT9818A-18GV

Introduction

PMIC stands for Power Management Integrated Circuit. It is an integrated circuit (IC integrated with combination of analog and digital blocks) dedicated to power optimization and management. PMICs are widely used for adjusting voltage levels across a wide range of applications such as automotive, industrial, and consumer electronics systems. The RT9818A-18GV is one such IC from RTlab that is used as a power supervisor and is widely used across a variety of industrial and consumer applications.

Features of RT9818A-18GV

The RT9818A-18GV is an 18V voltage supervisor with an over-voltage/ under-voltage protection. It has a 0.75V to 15.25V voltage range and a low operating current of 4.3mA. It also has an active low manual reset option, a power-on reset, and a delay reset. Additionally, the RT9818A-18GV has an adjustable delay time of the reset signal from 700µs to 1750µs, effectively allowing for a wider range of applications. It also comes with an internal voltage divider, which provides a wide range of supply voltage options for the user.

Applications of RT9818A-18GV

The RT9818A-18GV can be used for a range of applications, such as automotive and industrial systems. In an automotive system, the 1.5V to 15.25V voltage range makes it suitable for use in various systems, such as gauges and radio systems. Its adjustable delay time allows it to be used in wide-ranging applications, such as microprocessors, programmers and other digital systems. Its over-voltage/under-voltage protection makes it ideal for protecting vehicle systems, such as engine control units, against a sudden surge in voltage. Additionally, its low operating current makes it ideal for battery-operated devices, such as gaming consoles.

In an industrial setting, the RT9818A-18GV can be used for a variety of power management applications. Its wide voltage range makes it suitable for use in a variety of systems, such as wind turbines and solar power plants. Additionally, with its adjustable delay time, it can be used in a variety of safety monitoring and control applications, such as for industrial automation and fault-tolerant systems. Its over-voltage/under-voltage protection feature makes it suitable for circuitry that must withstand sudden voltage surges, such as industrial machinery used for welding and power tools.

Working Principle of RT9818A-18GV

The RT9818A-18GV is a voltage supervisor IC which protects the system from voltage spikes, by monitoring the supply voltage and issuing an active-low reset signal when the supply voltage is outside of the preset parameters. This reset signal can also be triggered manually, by providing an external reset signal. The adjustable delay time of the reset signal is set by the user and can be adjusted to fit the application.

The RT9818A-18GV is powered by an external supply voltage and is capable of operating from 1.5V to 15.25V. An internal voltage divider is present, which provides multiple supply voltage options for the user. The operating current for the IC is 4.3mA. The over-voltage and under-voltage limits can be adjusted by the user and are independent of the supply voltage.

The RT9818A-18GV is generally included in the power supply design and provides protection to the system by monitoring the supply voltage, issuing an active-low reset signal if the voltage is outside of the preset parameters and also manually by providing an external reset signal. Its adjustable delay time, over-voltage/under-voltage protection and low operating current make it an ideal choice for a wide range of applications.

Conclusion

The RT9818A-18GV is a voltage supervisor IC from RTlab that is used for power supply design purposes. It has a voltage range of 0.75V to 15.25V, an adjustable delay time of the reset signal from 700µs to 1750µs and a low operating current of 4.3mA. It is ideal for a wide range of applications, such as automotive, industrial and consumer applications, as it provides over-voltage/under-voltage protection, as well as manual reset signal capability. The RT9818A-18GV provides a simple and effective solution for system power supply design, making it a great choice for a wide range of applications.