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DS1775R/T&R PDF预览

DS1775R/T&R

更新时间: 2024-09-30 23:48:47
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页数 文件大小 规格书
13页 231K
描述
Tiny Digital Thermometer and Thermostat

DS1775R/T&R 数据手册

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PRODUCT PREVIEW  
DS1775  
SOT23-5 Digital Thermometer  
and Thermostat  
www.maxim-ic.com  
FEATURES  
PIN ASSIGNMENT  
C Temperature measurements require no  
external components  
SCL  
GND  
O.S.  
1
SDA  
5
C Measures temperatures from –55LC to  
+125LC. Fahrenheit equivalent is –67LF to  
257LF  
2
3
VDD  
4
C Thermometer accuracy is M2.0LC  
C Thermometer resolution is configurable from  
9 to 12 bits (0.5LC to 0.0625LC resolution)  
C Thermostat settings are user definable  
C Data is read from/written to via a 2–wire  
serial interface  
DS1775R  
SOT23-5  
PIN DESCRIPTION  
GND  
SCL  
SDA  
VDD  
Ground  
2–Wire Serial Clock  
2–Wire Serial Data Input/Output  
Power Supply Voltage  
Thermostat Output Signal  
C Wide power supply range (2.7V – 5.5V)  
C Software compatible with DS75 2–Wire  
Thermal Watchdog in thermometer mode  
C Space–conscious SOT23–5 package with  
low thermal time constant  
O.S.  
ORDERING INFORMATION  
Part Number  
Address  
000  
Part Number  
Address  
100  
DS1775R/TRL  
DS1775R/TR1  
DS1775R/TR2  
DS1775R/TR3  
DS1775R/TR4  
001  
DS1775R/TR5  
DS1775R/TR6  
DS1775R/TR7  
101  
010  
011  
110  
111  
* "R" denotes SOT 23-5 Package  
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–wire serial interface. No additional components are  
required; the device is truly a “temperature–to–digital” 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–drain thermal alarm output, O.S., becomes active when the temperature of the device exceeds a  
user–defined temperature TOS. 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.  
As a digital thermometer, the DS1775 is software compatible with the DS75 2–Wire Thermal Watchdog.  
1 of 13  
080602  

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