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S-5842A Series
www.sii-ic.com
© Seiko Instruments Inc., 2008-2015
DUAL TRIP TEMPERATURE SWITCH IC
(THERMOSTAT IC)
Rev.2.3_00
The S-5842A Series is a dual trip temperature switch IC (thermostat IC) which detects two points of temperature.
The S-5842A Series operates at the power supply voltage of 2.5 V and the lower current consumption of 10 μA typ.
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-23-6 and SNT-6A.
Features
Detection temperature:
Accuracy of detection temperature:
Low voltage operation:
Low current consumption:
Selectable output form:
Selectable output type:
Selectable output logic:
Operation temperature range:
Lead-free, Sn 100%, halogen-free*1
Detection temperature = 10°C to +110°C, +1°C step
±2.5°C (Only for either detection temperature)
VDD = 2.5 V min. (Detection temperature = +20°C to +110°C)
VDD = 2.7 V min. (Detection temperature = 0°C to +110°C)
VDD = 2.8 V min. (Detection temperature = 10°C to +110°C)
IDD = 10 μA typ. (Ta = +25°C)
CMOS output, Nch open-drain output
Separate, Integrate
"H", "L"
Ta = 40°C to +125°C
*1. Refer to "Product Name Structure" for details.
Applications
Fan control
Air-conditioning system
Mobile phone
Game console
Various electronics devices
Packages
SOT-23-6
SNT-6A
Seiko Instruments Inc.
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DUAL TRIP TEMPERATURE SWITCH IC (THERMOSTAT IC)
S-5842A Series
Block Diagrams
1. CMOS output product (Output type: Separate)
VDD
Temperature
sensor
+
Delay circuit
Logic circuit
(selectable)
Rev.2.3_00
DETH
Reference voltage
generation circuit
+
Delay circuit
Logic circuit
(selectable)
DETL
VSS
RTH
Figure 1
RTL
2. Nch open-drain output product (Output type: Separate)
VDD
Temperature
sensor
+
Delay circuit
Logic circuit
(selectable)
DETH
Reference voltage
generation circuit
+
Delay circuit
Logic circuit
(selectable)
VSS
RTH
RTL
Figure 2
DETL
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Rev.2.3_00
DUAL TRIP TEMPERATURE SWITCH IC IC (THERMOSTAT IC)
S-5842A Series
3. CMOS output product (Output type: Integrate)
VDD
Temperature
sensor
+
Delay circuit
Logic circuit
(selectable)
DETH
Reference voltage
generation circuit
+
Delay circuit
Logic circuit
(selectable)
VSS
RTH
Figure 3
RTL
4. Nch open-drain output product (Output type: Integrate)
VDD
Temperature
sensor
+
Delay circuit
Logic circuit
(selectable)
DETL
DETH
Reference voltage
generation circuit
+
Delay circuit
Logic circuit
(selectable)
VSS
RTH
Figure 4
RTL
DETL
Seiko Instruments Inc.
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DUAL TRIP TEMPERATURE SWITCH IC (THERMOSTAT IC)
S-5842A Series
Rev.2.3_00
Product Name Structure
Users are able to select the output form and type, option for detection temperature’s spec and package for the S-5842A
Series.
1. Product name
1. 1 SOT-23-6
S - 5842A x xxx - M6T1 x
1. 2 SNT-6A
Environmental code
U: Lead-free (Sn 100%), halogen-free
S: Lead-free, halogen-free
Product name (abbreviation) and packing specifications*1
M6T1: SOT-23-6, Tape
Option*2
Output form and output type*3
A: CMOS output
B: Nch open-drain output
C: CMOS output
D: Nch open-drain output
Separate type
Separate type
Integrate type
Integrate type
S - 5842A x xxx - I6T1 U
Environmental code
U: Lead-free (Sn 100%), halogen-free
Product name (abbreviation) and packing specifications*1
I6T1: SNT-6A, Tape
Option*2
Output form and output type*3
A: CMOS output
B: Nch open-drain output
C: CMOS output
D: Nch open-drain output
Separate type
Separate type
Integrate type
Integrate type
*1. Refer to the tape drawing.
*2. Refer to "Selection of Product Option". Settings are available in alphabetical order as AAA to ZZZ.
*3. Refer to "Selection of Product Option".
2. Packages
Package Name
SOT-23-6
SNT-6A
Table 1 Package Drawing Codes
Dimension
MP006-A-P-SD
PG006-A-P-SD
Tape
MP006-A-C-SD
PG006-A-C-SD
Reel
MP006-A-R-SD
PG006-A-R-SD
Land
PG006-A-L-SD
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Rev.2.3_00
DUAL TRIP TEMPERATURE SWITCH IC IC (THERMOSTAT IC)
S-5842A Series
3. Product name list
3. 1 SOT-23-6
Table 2
Option for Detection Temperature’s Spec
Product Name
Output Form
and Type
DETH Pin (for Higher Temperature)
Detection Accuracy of
Temperature Detection
(TDH) Temperature*1
Hysteresis
Temperature
(THYSH)
Output
Logic
DETL Pin (for Lower Temperature)
Detection
Temperature
(TDL)
Accuracy of
Detection
Temperature*1
Hysteresis
Temperature
(THYSL)
Output
Logic
S-5842AAAAF-M6T1y
S-5842AAAAG-M6T1y
S-5842AAAAL-M6T1U
S-5842AAAAN-M6T1y
S-5842ACAAM-M6T1y
CMOS,
Separate
CMOS,
Separate
CMOS,
Separate
CMOS,
Separate
CMOS,
Integrate
+95°C
+60°C
+45°C ±2.5°C
+50°C
+45°C
5°C
5°C
2°C
5°C
2°C
"L" +55°C ±2.5°C
"H" 0°C ±2.5°C
"H" 0°C
"L" +40°C ±2.5°C
"L" 0°C ±2.5°C
5°C
+5°C
+2°C
5°C
2°C
"L"
"L"
"H"
"L"
"L"
*1 Either of two detection temperatures (TDH, TDL), an accuracy of ±2.5°C is set only for the one that user specifies a higher
accuracy than the other (TDH, TDL).
Remark 1.
2.
3.
Please contact our sales office for products other than those specified above. Refer to "Selection of Product
Option" for details.
y: S or U
Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
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