S-5843A Series

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TEMPERATURE SWITCH IC (THERMOSTAT IC)

© SII Semiconductor Corporation, 2009-2015

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The S-5843A 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-5843A Series restores the output voltage

when the temperature drops to the level of release temperature.

The S-5843A Series operates at the lower power supply voltage of 1.65 V and its current consumption is 4.5

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 +120°C, +1°C step, detection accuracy: ±2.5°C

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Low voltage operation:

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Low current consumption:

μA typ. (Ta = +25°C)

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Hysteresis temperature:

selectable in 2

°C, 4°C, 10°C or 20°C

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

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Selectable output form in CMOS or Nch open drain

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Prevent functions for false detection operation and false release operation

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Operation temperature range:

Ta =

−40°C to +125°C

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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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Mobile phone

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Game console

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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