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TMP112 数据表(PDF) 9 Page - Texas Instruments

部件名 TMP112
功能描述  TMP112 High-Accuracy, Low-Power, Digital Temperature Sensor With SMBus and Two-Wire Serial Interface in SOT563
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TMP112 数据表(HTML) 9 Page - Texas Instruments

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Diode
Temp.
Sensor
DS
A/D
Converter
OSC
Control
Logic
Serial
Interface
Config.
andTemp.
Register
TMP112
Temperature
SCL
1
3
6
4
ALERT
SDA
GND
2
5
V+
ADD0
TMP112
www.ti.com
SBOS473E – MARCH 2009 – REVISED DECEMBER 2015
7 Detailed Description
7.1 Overview
The TMP112 device is a digital temperature sensor that is optimal for thermal-management and thermal-
protection applications. The TMP112 device is two-wire, SMBus, and I2C interface-compatible. The device is
specified over an operating temperature range of –40°C to 125°C. Figure 8 shows a block diagram of the
TMP112 device. Figure 9 shows the ESD protection circuitry contained in the TMP112 device.
The temperature sensor in the TMP112 device is the chip itself. Thermal paths run through the package leads as
well as the plastic package. The package leads provide the primary thermal path because of the lower thermal
resistance of the metal.
An alternative version of the TMP112 device is available. The TMP102 device has reduced accuracy, the same
micro-package, and is pin-to-pin compatible.
Table 1. Advantages of TMP112 Versus TMP102
Supply
Supply
Specified
Compatible
Supply
Local Sensor Accuracy
Device
Package
Voltage
Voltage
Resolution
Calibration
Interfaces
Current
(Max)
(Min)
(Max)
Drift Slope
SOT563
12 Bit
0.5°C: (0°C to 65°C)
I2C
TMP112
10 µA
1.4 V
3.6 V
Yes
1.2 × 1.6 × 0.6
0.0625°C
1°C: (-40°C to 125°C)
SMBus
SOT563
12 Bit
2°C: (25°C to 85°C)
I2C
TMP102
10 µA
1.4 V
3.6 V
No
1.2 × 1.6 × 0.6
0.0625°C
3°C: (-40°C to 125°C)
SMBus
7.2 Functional Block Diagram
Figure 8. Internal Block Diagram
Copyright © 2009–2015, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: TMP112


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