The HG811SM4/TR is a Monitors and Reset Circuits ROHS manufactured by HGSEMI. This integrated circuit is housed in an industry-standard SOT-143 package. The part is designed to provide a wide range of overvoltage, overcurrent, and reset functions. It features a low-voltage monitor input with hysteresis and reset output capabilities, a floating shunt voltage/current monitor with hysteresis, and a manual reset input with hysteresis. It also features undervoltage detection for both its monitor and shunt inputs. The device is suitable for use in consumer electronics, communications, automotive, and industrial applications.