S-5841A55D-M5T1X Datasheet, PDF (14/26 Pages) Seiko Instruments Inc – TEMPERATURE SWITCH IC

TEMPERATURE SWITCH IC (THERMOSTAT IC)
S-5841 Series
Rev.2.2_01
2. 2 SNT-6A
The hysteresis temperature can be switched in 0°C, 2°C, 4°C, 10°C, and is set by the HYS1 pin and HYS2 pin.
Table 14 Hysteresis Option A
Setting Pin
HYS1
HYS2
"H"
"H"
"H"
"L"
"L"
"H"
"L"
"L"
Hysteresis Temperature
2°C
4°C
10°C
0°C
3. Delay circuit
The S-5841 Series sets the noise suppression time (tdelay) via the delay circuit. By this, the S-5841 Series prevents false
detection operations of the DET pin output.
The followings are about the operation when the DET pin output logic is active "H".
3. 1 The temperature is the detection temperature or less
The output from a comparator is "H", and the DET pin is "L". Due to noise or others, the output from a comparator is
inverted to "L" once; however, the DET pin keeps "L" if this status is tdelay or shorter.
3. 2 The temperature exceeds the detection temperature
The output from a comparator gets "L". And the DET pin gets "H" after the period has passed tdelay or longer.
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