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TMP75C

更新时间： 2024-10-02 01:11:35
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TMP75C 1.8-V Digital Temperature Sensor with Two-Wire Interface and Alert

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TMP75C  
SBOS707B –APRIL 2014–REVISED AUGUST 2014  
TMP75C 1.8-V Digital Temperature Sensor with Two-Wire Interface and Alert  
1 Features  
3 Description  
The TMP75C is an integrated digital temperature  
sensor with a 12-bit analog-to-digital converter (ADC)  
that can operate at a 1.8-V supply, and is pin and  
register compatible with the NCT75 and ADT75. This  
device is available in SOIC-8 and VSSOP-8  
packages and requires no external components to  
sense the temperature. The TMP75C is capable of  
reading temperatures with a resolution of 0.0625°C  
and is specified over a temperature range of –55°C to  
+125°C.  
1
•
Low-Voltage Alternative to NCT75 and ADT75  
Digital Output with Two-Wire Serial Interface  
Up to 8 Pin-Programmable Bus Addresses  
•
•
•
Overtemperature ALERT Pin with Programmable  
Trip Values  
•
•
•
•
•
Shutdown Mode for Battery Power Saving  
One-Shot Conversion Mode  
Operating Temperature Range: –55°C to +125°C  
Operating Supply Range: 1.4 V to 3.6 V  
Quiescent Current:  
The TMP75C features SMBus and two-wire interface  
compatibility, and allows up to eight devices on the  
same bus with the SMBus overtemperature alert  
function. The programmable temperature limits and  
the ALERT pin allow the sensor to operate as a  
stand-alone thermostat, or an overtemperature alarm  
for power throttling or system shutdown.  
–
–
15 μA Active (typ)  
0.3 μA Shutdown (typ)  
•
Accuracy:  
–
–
–
±0.25°C (typ) from 0°C to +70°C  
The factory-calibrated temperature accuracy and the  
noise-immune digital interface make the TMP75C the  
preferred solution for temperature compensation of  
other sensors and electronic components, without the  
need for additional system-level calibration or  
elaborate board layout for distributed temperature  
sensing.  
±0.5°C (typ) from –20°C to +85°C  
±1°C (typ) from –55°C to +125°C  
•
•
Resolution: 12 Bits (0.0625°C)  
Packages: SOIC-8 and VSSOP-8  
2 Applications  
The TMP75C is ideal for thermal management and  
•
•
•
•
•
•
•
•
•
Server and Computer Thermal Management  
Telecommunication Equipment  
Office Machines  
protection of  
communication,  
applications.  
a
variety of consumer, computer,  
industrial, and environmental  
Video Game Consoles  
Device Information(1)  
Set-Top Boxes  
DEVICE NAME  
PACKAGE  
SOIC (8)  
VSSOP (8)  
BODY SIZE (NOM)  
4.90 mm × 3.90 mm  
3.00 mm × 3.00 mm  
Power Supply and Battery Thermal Protection  
Thermostat Control  
TMP75C  
Environmental Monitoring and HVAC  
Electrical Motor Driver Thermal Protection  
(1) For all available packages, see the package option addendum  
at the end of the datasheet.  
Temperature Accuracy (Error) vs Ambient  
Temperature  
Simplified Schematic  
1.4 V to 3.6 V  
3
2
0.01 PF  
1
TMP75C  
1
2
3
4
8
7
6
5
SDA  
VS  
A0  
A1  
A2  
0
SCL  
Two-Wire  
Host Controller  
±1  
ALERT  
GND  
Mean  
±2  
Mean - 61  
Mean + 61  
±3  
±75 ±50 ±25  
0
25  
50  
75  
100 125 150  
Temperature (ƒC)  
C005  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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