TEMPERATURE SWITCH IC (THERMOSTAT IC)

S-5844A Series

11



Operation

The S-5844A Series is a temperature switch IC (thermostat IC) which detects temperature and sends a signal to an

external device.

The users can select various combinations of the parameters such as the detection temperature, the output form and logic,

and hysteresis temperature.

Following is about the operation when the DET pin output logic is active "H".

After applying the power supply, the S-5844A Series starts to detect the temperature. If the temperature is lower than the

detection temperature (

temperature, and the DET pin goes in "H".

After the detection, the temperature drops and reaches the release temperature (

"L".

Figure 10 is the timing chart.

L

DET pin output

Ambient temperature (Ta)

H

Detection temperature (

Hysteresis temperature



Release temperature (

Figure 10 Operation when the DET Pin Output Logic is Active "H"