open drain output
时间: 2023-09-14 18:14:14 浏览: 37
Open drain output is a type of electronic output that can either be in the high-impedance state or sink current to ground. In this type of output, the transistor is connected between the output pin and ground, and it can be turned on or off by applying a control signal to the gate. When the transistor is turned off, the output pin is in the high-impedance state, which means that it is not connected to anything. When the transistor is turned on, current can flow from the output pin to ground, which allows the output to sink current. Open drain outputs are commonly used in digital circuits to interface with other devices that have different voltage levels or to drive signals over long distances.