The chip ACS71240LLCBTR-030B3 is a current sensor IC with common mode rejection and overcurrent fault. It is manufactured by Allegro MicroSystems and is part of their automotive series1. It can measure AC/DC current up to 30A with high accuracy and fast response time. It has a bidirectional analog output voltage that is proportional to the sensed current. It also has a digital output pin that indicates when the current exceeds a programmable threshold. The chip operates with a supply voltage of 3V to 3.6V and can withstand temperatures from -40°C to 150°C. It comes in an 8-pin SOIC package with a compact size of 4.9mm x 3.9mm x 1.75mm12. The chip is suitable for applications such as motor control, load detection, power management, and overcurrent protection1.