ISL88031IU8HCZ-TK

Power management integrated circuits (PMICs) are electrical components designed to manage the power systems of peripheral devices. This can include systems such as batteries, power sources, and power level detection. A supervisor is a type of PMIC that is used to detect and regulate faults in power management systems such as voltage under-voltage and over-voltage. The ISL88031IU8HCZ-TK from Renesas Electronics is a supervisory IC specifically designed for power management in consumer, industrial, telecommunications, computing, and automotive applications.

Applications of the ISL88031IU8HCZ-TK

The ISL88031IU8HCZ-TK is a type of power management IC (PMIC) used to detect faults in power management systems. This PMIC is versatile, with applications in both consumer, industrial, telecommunications and automotive markets. Common applications of the IC include system reset and monitoring, power sequence control, and voltage level detection in battery management, power supply design, and safety monitoring.

The ISL88031IU8HCZ-TK is suitable for systems that require power sequencing, including those utilized in high-end consumer electronics and mobile devices such as the IMLCD display on the Apple IPhone 8. This IC is also suitable for automotive applications, such as those related to active noise and vibration control, in-vehicle infotainment, and driver assist systems. It is also widely used in industrial applications such as industrial automation, automated test equipment, and smart meters.

Working Principle

The ISL88031IU8HCZ-TK is a supervisory device designed to detect faults in power management systems, including those related to power sequencing, voltage levels, and over-current protection. This device works by monitoring the voltage level and signaling when the voltage falls below or rises above a specified threshold. When this happens, the device communicates a warning signal or triggers a system reset before the system shuts down due to the fault.

The device provides helpful features such as manual reset operation, adjustable reset thresholds, and clear diagnostic outputs. It has an integrated watchdog timer with a timeout period that can be programmable from 1 ms up to 16 s, allowing users to select the appropriate reset methods for their specific applications. In addition, the device can be configured to provide 3-state reset sequencing control and active high/low reset control.

The ISL88031IU8HCZ-TK features a wide operating temperature range of -40°C to +105°C and provides a wide supply voltage range of 1.8V to 5.5V. It comes in a small 3.2mm X 3.2mm VQFN package, making it suitable for space-constrained applications.

Conclusion

The ISL88031IU8HCZ-TK is a supervisory IC specifically designed for power management in consumer, industrial, telecommunications, computing, and automotive applications. It is useful in applications related to system reset and monitoring, power sequence control, and voltage level detection. This device works by monitoring the voltage levels and signaling when the voltage falls below or rises above a specified threshold. This device features a wide operating temperature range and small form factor, making it suitable for space-constrained applications.