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S-5844A

Seiko Instruments Semiconductor
Part Number S-5844A
Manufacturer Seiko Instruments Semiconductor
Description TEMPERATURE SWITCH
Published Feb 23, 2012
Detailed Description S-5844A Series www.sii-ic.com © Seiko Instruments Inc., 2011-2014 TEMPERATURE SWITCH IC (THERMOSTAT IC) Rev.2.6_00 Th...
Datasheet PDF File S-5844A PDF File

S-5844A
S-5844A

Overview
S-5844A Series www.
sii-ic.
com © Seiko Instruments Inc.
, 2011-2014 TEMPERATURE SWITCH IC (THERMOSTAT IC) Rev.
2.
6_00 The S-5844A 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-5844A Series restores the output voltage when the temperature drops to the level of release temperature.
The S-5844A Series operates at the lower power supply voltage of 1.
65 V and its current consumption is 0.
18 μA typ.
due to CMOS configuration.
A temperature sensor with the negative temperature coefficient, a reference voltage generation circuit and a comparator are integrated on one chip, and enclosed into the packages SOT-23-5 and SNT-4A, and the super-small package HSNT-4 (1010).
 Features • Detection temperature: TDET = +50°C to +100°C, +5°C step, detection accuracy: ±2.
5°C • Low voltage operation: VDD = 1.
65 V min.
• Low current consumption: IDD = 0.
18 μA typ.
(Ta = +25°C) • Hysteresis temperature: selectable in 5°C, 10°C, 15°C or 20°C • Selectable output logic in active "H" or active "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  Applications • Fan control • Air conditioning system • Mobile phone • Game console • Various electronic devices  Packages • SOT-23-5 • SNT-4A • HSNT-4 (1010) Seiko Instruments Inc.
1 TEMPERATURE SWITCH IC (THERMOSTAT IC) S-5844A Series  Block Diagrams 1.
CMOS output product VDD Temperature sensor + Logic circuit − (selectable) Reference voltage generation circuit TEST 2.
Nch open-drain output product VDD Figure 1 VSS Temperature sensor + Logic circuit − (selectable) Reference voltage generation circuit TEST Figure 2 VSS Rev.
2.
6_00 DET DET 2 Seiko Instruments Inc.
Rev.
2.
6_00 TEMPERATURE SWITCH IC (THERMOSTAT IC) S-5844A Series  Product Name Structure Users are able to select the ...


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