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DS1775 Datasheet

  • DS1775

  • SOT23-5 Digital Thermometer and Thermostat

  • 230.61KB

  • Dallas   Dallas 

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PRODUCT PREVIEW
PRELIMINARY
DS1775
SOT23-5 Digital Thermometer
and Thermostat
www.dalsemi.com
FEATURES
搂
Temperature measurements require no
external components
搂
Measures temperatures from 鈥?5掳 to
C
+125掳 Fahrenheit equivalent is 鈥?7掳 to
C.
F
257掳
F
搂
Thermometer accuracy is
卤2.0掳
C
搂
Thermometer resolution is configurable from
9 to 12 bits (0.5掳 to 0.0625掳 resolution)
C
C
搂
Thermostat settings are user definable
搂
Data is read from/written to via a 2鈥搘ire
serial interface
搂
Wide power supply range (2.7V 鈥?5.5V)
搂
Software compatible with DS75 2鈥揥ire
Thermal Watchdog in thermometer mode
搂
Space鈥揷onscious SOT23鈥? package with
low thermal time constant
PIN ASSIGNMENT
SCL
GND
O.S.
1
2
3
4
V
DD
5
SDA
DS1775R
SOT23-5
PIN DESCRIPTION
GND
SCL
SDA
V
DD
O.S.
Ground
2鈥揥ire Serial Clock
2鈥揥ire Serial Data Input/Output
Power Supply Voltage
Thermostat Output Signal
Address
100
101
110
111
ORDERING INFORMATION
Part Number
Address
DS1775R/TRL
000
DS1775R/TR1
001
DS1775R/TR2
010
DS1775R/TR3
011
* "R" denotes SOT 23-5 Package
Part Number
DS1775R/TR4
DS1775R/TR5
DS1775R/TR6
DS1775R/TR7
DESCRIPTION
The DS1775 SOT23-5 Digital Thermometer and Thermostat provides temperature readings which
indicate the temperature of the device. Thermostat settings and temperature readings are all
communicated to/from the DS1775 over a simple 2鈥搘ire serial interface. No additional components are
required; the device is truly a 鈥渢emperature鈥搕o鈥揹igital鈥?converter.
For applications that require greater temperature resolution, the user can adjust the readout resolution
from 9 to 12 bits. This is particularly useful in applications where thermal runaway conditions must be
detected quickly.
The open鈥揹rain thermal alarm output, O.S., becomes active when the temperature of the device exceeds a
user鈥揹efined temperature T
OS
. The number of consecutive faults required to set O.S. active is
configurable by the user. The device can also be configured in the interrupt or comparator mode, to
customize the method which clears the fault condition.
1 of 13
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DS1775 PDF文件相关型号

DS1775R/TR1,DS1775R/TR2,DS1775R/TR3,DS1775R/TR4,DS1775R/TR5,DS1775R/TR6,DS1775R/TR7,DS1775R/TRL

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