External resistor and capacitor connection to set duration.
The YL105 typically utilizes an 8-pin layout. While you should always verify with the specific manufacturer's marking, the standard configuration is often as follows: Positive power supply. GND: Ground reference.
Most commonly found in SOP-8 (Surface Mount) or DIP-8 (Through-hole) configurations. Pinout Configuration yl105 datasheet
Use an oscilloscope or multimeter to see if Pin 6 (Output) toggles when the input trigger is activated. If the input changes but the output stays dead, the IC is likely fried. Conclusion
Managing the auto-off function once boiling point is reached. External resistor and capacitor connection to set duration
If a timer isn't lasting the correct duration, the external capacitor connected to the timing pins has likely drifted in value or leaked.
Extremely low (micro-ampere range in standby), making it ideal for energy-efficient "green" appliances. GND: Ground reference
The YL105 is a testament to the efficiency of modern application-specific ICs. By integrating timing and logic into a tiny 8-pin package, it allows manufacturers to build reliable consumer goods at a fraction of the cost of using a dedicated microcontroller.
Receives signals from buttons or sensors (e.g., a steam sensor in a kettle).