HX7022A with Microprocessor & Microcontroller Supervisors TO-92 RoHS is a multi-functional chip manufactured by Hengjiaxing, a Chinese chip maker. It is an extremely versatile low power supervision IC and is used in multiple functions and power management systems. It provides a complete protection system for your circuits, including overvoltage, undervoltage, overcurrent, reverse current, over-temperature, and clock watch. It features a precision voltage monitor that is programmable with different trip points and a watchdog timer with an adjustable pulse duration to guard against application and system lock-ups. Additionally, the device is RoHS (Restriction of Hazardous Substances) compliant, and is designed to meet the requirements of the most demanding microprocessor and microcontroller applications.