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S-5841

Part Number	S-5841
Manufacturer	Seiko Instruments
Description	TEMPERATURE SWITCH IC
Published	Aug 29, 2009
Detailed Description	S-5841 Series www.sii-ic.com © Seiko Instruments Inc., 2007-2015 TEMPERATURE SWITCH IC (THERMOSTAT IC) Rev.2.2_00 The...
Datasheet	S-5841 PDF File

Overview

S-5841 Series www.
sii-ic.
com © Seiko Instruments Inc.
, 2007-2015 TEMPERATURE SWITCH IC (THERMOSTAT IC) Rev.
2.
2_00 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.
 Features • Detection temperature: TDET = +40°C to +100°C, +1°C step, detection accuracy: ±2.
5°C • Low voltage operation: VDD = 2.
2 V min.
(Detection temperature = +55°C to +100°C, Ta = −40°C to +100°C) • Low current consumption: IDD = 10 μA typ.
(Ta = +25°C) • 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 • Operation temperature range: Ta = −40°C to +125°C • Lead-free, Sn 100%, halogen-free*1 *1.
Refer to " Product Name Structure" for details.
 Applications • Fan control • Air conditioning system • Various electronic devices  Packages • SOT-23-5 • SNT-6A Seiko Instruments Inc.
1 TEMPERATURE SWITCH IC (THERMOSTAT IC) S-5841 Series  Block Diagrams 1.
CMOS output product VDD Temperature sensor + − Delay circuit Logic circuit (selectable) Reference voltage generation circuit VSS HYS1 HYS2*1 *1.
The HYS2 pin is not equipped for SOT-23-5.
Figure 1 2.
Nch open drain output product VDD RT Temperature sensor + − Delay circuit Logic circuit (selectable) Reference voltage generation circuit VSS HYS1 HYS2*1 *1.
The HYS2 pin is not equipped for SOT-23...

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