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DS1621S-

Description
ESD Suppressors / TVS Diodes ESD PROT UNI SOD923
CategoryThe sensor   
File Size436KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS1621S- Overview

ESD Suppressors / TVS Diodes ESD PROT UNI SOD923

DS1621S- Parametric

Parameter NameAttribute value
Product CategoryBoard Mount Temperature Sensors
ManufacturerMaxim
RoHSDetails
Output TypeDigital
ConfigurationLocal
Accuracy+/- 2 C
Maximum Operating Temperature+ 125 C
Minimum Operating Temperature- 55 C
Interface Type2-Wire, I2C, SMBus
Resolution12 bit
Supply Voltage - Max5.5 VDC
Supply Voltage - Min2.7 VDC
ShutdownNo Shutdown
Temperature ThresholdProgrammable
Mounting StyleSMD/SMT
Package / CaseSOIC-Narrow-8
ProductThermometer Thermostat
PackagingTube
Operating Supply Current1 mA
Factory Pack Quantity100
DS1621
Digital Thermometer and
BENEFITS AND FEATURES
Simply Adds Temperature Monitoring and
Control to Any System
o
Measures Temperatures From -55°C to
+125°C in 0.5°C Increments. Fahrenheit
Equivalent is -67°F to 257°F in 0.9°F
Increments
o
Temperature is Read as a 9-Bit Value (2-
Byte Transfer)
o
Converts Temperature to Digital Word in
Less than 1s
o
Thermostatic Settings are User Definable
And Nonvolatile
Can Be Used in a Wide Variety of
Applications
o
Power Supply Range (2.7V to 5.5V)
o
Data is Read From/Written Via a 2-Wire
Serial Interface (Open Drain I/O Lines)
Saves Space
o
Temperature Measurements Require No
External Components
o
8-pin DIP or SO package (208-mil)
Packages
Thermostatic Controls
Industrial Systems
Consumer Products
Thermometers
PIN ASSIGNMENT
SDA
SCL
T
OUT
GND
1
2
3
4
8
7
6
5
V
DD
A
0
A
1
A
2
DS1621S 8-PIN SO (150mil)
DS1621V 8-PIN SO (208mil)
SDA
SCL
T
OUT
GND
1
2
3
4
8
7
6
5
V
DD
A
0
A
1
A
2
DS1621 8-PIN DIP (300mil)
APPLICATIONS
SDA
SCL
GND
T
OUT
A0
A1
A2
V
DD
PIN DESCRIPTION
- 2-Wire Serial Data Input/Output
- 2-Wire Serial Clock
- Ground
- Thermostat Output Signal
- Chip Address Input
- Chip Address Input
- Chip Address Input
- Power Supply Voltage
The DS1621 Digital Thermometer and Thermostat provides 9-bit temperature readings, which indicate
the temperature of the device. The thermal alarm output, T
OUT
,
is active when the temperature of the
device exceeds a user-defined temperature TH. The output remains active until the temperature drops
below user defined temperature TL, allowing for any hysteresis necessary.
User-defined temperature settings are stored in nonvolatile memory so parts may be programmed prior to
insertion in a system. Temperature settings and temperature readings are all communicated to/from the
DS1621 over a simple 2-wire serial interface.
1 of 16
19-7540; Rev 4; 3/15
DESCRIPTION

DS1621S- Related Products

DS1621S- DS1621- DS1621S-W DS1621S-TR-W
Description ESD Suppressors / TVS Diodes ESD PROT UNI SOD923 Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr Board Mount Temperature Sensors Digital Thermometer u0026 Thermostat Board Mount Temperature Sensors Digital Thermometer u0026 Thermostat
Product Category Board Mount Temperature Sensors Board Mount Temperature Sensors Board Mount Temperature Sensors Board Mount Temperature Sensors
Manufacturer Maxim Maxim Maxim Maxim
RoHS Details Details Details Details
Output Type Digital Digital Digital Digital
Configuration Local Local Local Local
Accuracy +/- 2 C +/- 0.5 C +/- 2 C +/- 2 C
Maximum Operating Temperature + 125 C + 125 C + 125 C + 125 C
Minimum Operating Temperature - 55 C - 55 C - 55 C - 55 C
Interface Type 2-Wire, I2C, SMBus 2-Wire, I2C, SMBus 2-Wire, I2C, SMBus 2-Wire, I2C, SMBus
Resolution 12 bit 12 bit 12 bit 12 bit
Supply Voltage - Max 5.5 VDC 5.5 VDC 5.5 VDC 5.5 VDC
Supply Voltage - Min 2.7 VDC 2.7 VDC 2.7 VDC 2.7 VDC
Shutdown No Shutdown No Shutdown No Shutdown No Shutdown
Temperature Threshold Programmable Programmable Programmable Programmable
Product Thermometer Thermostat Thermometer Thermostat Thermometer Thermostat Thermometer Thermostat
Packaging Tube Tube Tube Reel
Operating Supply Current 1 mA 1 mA 1 nA 1 nA
Factory Pack Quantity 100 50 100 2500
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