S-5841 Series

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TEMPERATURE SWITCH IC (THERMOSTAT IC)

© Seiko Instruments Inc., 2007-2015

Seiko Instruments Inc.

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The S-5841 Series is a temperature switch IC (thermostat IC) which detects the temperature with a temperature accuracy of

±2.5°C. The output inverts when temperature reaches the detection temperature. The S-5841 Series restores the output

voltage when the temperature drops to the level of release temperature.

The S-5841 Series operates at the lower power supply voltage of 2.2 V and its current consumption is 10

μA typ. due to

CMOS configuration.

A temperature sensor with the negative temperature coefficient, a reference voltage generation circuit, a comparator and a

delay circuit are integrated on one chip, and enclosed into the packages SOT-23-5 and SNT-6A.

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Features

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Detection temperature:

+40°C to +100°C, +1°C step, detection accuracy: ±2.5°C

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Low voltage operation:

(Detection temperature =

+55°C to +100°C, Ta = −40°C to +100°C)

•

Low current consumption:

μA typ. (Ta = +25°C)

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Hysteresis temperature can be switched in 0

°C, 2°C, 4°C and 10°C.

•

Selectable output logic in active "H" or "L"

•

Selectable output form in CMOS or Nch open drain

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Operation temperature range:

Ta =

−40°C to +125°C

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Lead-free, Sn 100%, halogen-free

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*1. Refer to " Product Name Structure" for details.

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Applications

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Fan control

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Air conditioning system

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Various electronic devices

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Packages

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SOT-23-5

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SNT-6A