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PDF S-5840B Data sheet ( Hoja de datos )
| Número de pieza | S-5840B | |
| Descripción | TEMPERATURE SWITCH IC | |
| Fabricantes | Seiko Instruments | |
| Logotipo |  |
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S-5840B Series
www.sii-ic.com
TEMPERATURE SWITCH IC (THERMOSTAT IC) WITH LATCH
© Seiko Instruments Inc., 2007-2012
Rev.2.1_00
The S-5840B Series is a temperature switch IC (thermostat IC) with a latch function which detects the temperature with a
temperature accuracy of ±2.5°C. When the temperature reaches the detection temperature, the output signal is inverted and
being latched until the S-5840B Series detects decrease in a power supply voltage.
The S-5840B Series operates at the lower power supply voltage of 1.0 V and its current consumption is 12 μA typ. due to
CMOS configuration.
The S-5840B Series has a temperature sensor using negative temperature coefficient, a reference voltage generation
circuit, comparator, voltage detection circuit and noise suppression circuit on a chip, and they are enclosed in package
SOT-23-5.
Features
• Detection temperature:
TDET = +55 to +95°C, +1°C step, detection accuracy: ±2.5°C
• Wide voltage operation:
VDD = 1.0 V to 10.0 V
• Release voltage:
VRET = 2.2 V to 3.4 V, 0.1 V step
• Low current consumption:
IDD = 12 μA typ. (Ta = +25°C).
• Built-in noise suppression circuit for preventing temperature detection malfunction
• Output logic level is fixed by the latch after temperature detection.
• Selectable output logic in active "H" or "L"
• Selectable output form in CMOS or Nch open drain
• Operation temperature range:
Ta = −40°C to +100°C
• Lead-free, Sn 100%, halogen-free*1
*1. Refer to " Product Name Structure" for details.
Applications
• Game console
• Electronic device
Package
• SOT-23-5
Seiko Instruments Inc.
1
1 page  
Rev.2.1_00
TEMPERATURE SWITCH IC (THERMOSTAT IC) WITH LATCH
S-5840B Series
Absolute Maximum Ratings
Table 4
Item
Power supply voltage (VSS = 0 V)
Pin voltage
Output voltage
CMOS output
Nch open drain output
Symbol
VDD
VRT, VCD
VDET
Power dissipation
PD
Operating temperature
Topr
Storage temperature
Tstg
*1. When mounted on board
[Mounted board]
(1) Board size: 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name: JEDEC STANDARD51-7
(Ta = +25°C unless otherwise specified)
Absolute Maximum Rating
Unit
VSS + 12
VSS − 0.3 to VDD + 0.3
VSS − 0.3 to VDD + 0.3
VSS − 0.3 to VSS + 12.0
300 (when not mounted on board)
600*1
V
V
V
V
mW
mW
−40 to +100
°C
−55 to +125
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
Recommended Values for External Parts
Table 5
Item
CD capacitance
Symbol
CD
Value
4.7
Unit
nF
Seiko Instruments Inc.
5
5 Page 
Rev.2.1_00
TEMPERATURE SWITCH IC (THERMOSTAT IC) WITH LATCH
S-5840B Series
Marking Specification
1. SOT-23-5
Top view
54
(1) to (3):
(4):
Product code (refer to Product name vs. Product code)
Lot number
(1) (2) (3) (4)
123
Product name vs. Product code
Product Name
Product Code
(1) (2) (3)
S-5840BAG-M5T1x
H8M
S-5840BAH-M5T1x
H8N
S-5840BAJ-M5T1x
H8O
Remark 1. x: G or U
2. Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet S-5840B.PDF ] | |
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