ISL69122IRAZ

ISL69122IRAZ is a specialized integrated circuit (IC) designed for the implementation of non-contact current sensing based on Rogowski sensors. The device integrates high-side current sensing and low-side current sensing in a small package, making it suitable for a wide range of applications such as automotive electric drive systems and distributed power systems, as well as industrial drive systems and high voltage power distribution boards. The device can sense up to a peak current of 1000A, allowing it to accurately detect electrical currents in fast-changing systems. Furthermore, it is designed to be robust to transient stresses and is qualified to Hi-Rel standards.

Device Overview

The ISL69122IRAZ is a 4-channel, smart, precision current sensing IC that combines high accuracy and low power consumption. It is primarily intended for use in applications such as motor control and energy management systems as well as distributed power systems and automotive applications. The device consists of a main processor unit, four fully differential signal amplifiers, and an ADC. It is capable of measuring both DC and AC currents in a range from 0mA to 1000A. The device features a 16-bit, high-speed, sigma-delta ADC providing high precision measurement.

The device incorporates an on-chip temperature sensor that measures ambient temperature during the operation and senses any abnormal temperature rise. The device has internal low-power modes that can be used to reduce power consumption while still delivering accurate measurements. The IC also includes a pulse-width-modulated output terminal that can be used to determine the current magnitude in digital form.

Applications of ISL69122IRAZ

The ISL69122IRAZ is ideal for applications that require high-accuracy, non-contact current measurements in fast-changing systems. The device is suitable for monitoring, controlling, and protecting power supplies in automotive systems, and industrial drive systems, as well as distributed power systems and high voltage power distribution boards. It can also be used in motor control systems, renewable energy systems, and energy management systems. The device is capable of providing accurate and reliable measurements in extremely difficult to access locations, making it suitable for use in a wide range of applications.

Working Principle of ISL69122IRAZ

The ISL69122IRAZ uses the principle of inductive current sensing, also known as Rogowski sensing, to measure the current in a circuit. In this method, a Rogowski coil is used to sense the current in a conductor, and the sensed current is then passed through the coil. As current flows through the coil, it produces an alternating magnetic flux that is detected by the ISL69122IRAZ. This signal is then amplified, digitized, and filtered to provide a high-accuracy measurement of the current in the conductor. The device also provides a pulse-width modulated output that can be used to determine the magnitude of the current in digital form.

Conclusion

The ISL69122IRAZ is a high-performance, smart, precision current sensing IC designed for non-contact current sensing based on Rogowski sensors. The device is ideal for applications that require high-accuracy, non-contact current measurements in fast changing systems. It can be used in a wide range of applications, including motor control systems, renewable energy systems, and energy management systems. The device provides an accurate and reliable measurement of the current in a wide range of power systems. The on-board temperature sensor enables the device to measure temperatures during operation to prevent any abnormal temperature rise.