LM393 chip is a commonly used comparator chip, mainly used in the circuit comparison operation, can detect the voltage level or the size of the relationship between two voltages. It is widely used in various electrical appliances, such as power management, temperature control, illumination control and other circuits.
For example, in the battery charge and discharge management circuit, the LM393 chip can detect the battery voltage, and automatically stop charging or discharging when the voltage is lower than the set value, so as to protect the battery. In addition, LM393 chip can also be used in electronic scale, voltage measurement, automatic control and other fields, has a wide range of application prospects.
The LM393 is a dual comparator chip that can do constant current, voltage limiting, and current limiting circuits.