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Design
TMP102
SBOS397G – AUGUST 2007 – REVISED OCTOBER 2018
TMP102 Low-Power Digital Temperature Sensor With SMBus and Two-Wire Serial
Interface in SOT563
1 Features
1
3 Description
The TMP102 device is a digital temperature sensor
ideal for NTC/PTC thermistor replacement where high
accuracy is required. The device offers an accuracy
of ±0.5°C without requiring calibration or external
component signal conditioning. Device temperature
sensors are highly linear and do not require complex
calculations or lookup tables to derive the
temperature. The on-chip 12-bit ADC offers
resolutions down to 0.0625°C.
The 1.6-mm × 1.6-mm SOT563 package is 68%
smaller footprint than an SOT-23 package. The
TMP102 device features SMBus™, two-wire and I
2
C
interface compatibility, and allows up to four devices
on one bus. The device also features an SMBus alert
function. The device is specified to operate over
supply voltages from 1.4 to 3.6 V with the maximum
quiescent current of 10 µA over the full operating
range.
The TMP102 device is ideal for extended temperature
measurement in a variety of communication,
computer, consumer, environmental, industrial, and
instrumentation applications. The device is specified
for operation over a temperature range of –40°C to
125°C.
The TMP102 production units are 100% tested
against sensors that are NIST-traceable and are
verified with equipment that are NIST-traceable
through ISO/IEC 17025 accredited calibrations.
Device Information
(1)
PART NUMBER
TMP102
PACKAGE
SOT563 (6)
BODY SIZE (NOM)
1.60 mm × 1.20 mm
•
•
•
•
•
•
•
SOT563 Package (1.6-mm × 1.6-mm) is a 68%
Smaller Footprint than SOT-23
Accuracy Without Calibration:
– 2.0°C (max) from –25°C to 85°C
– 3.0°C (max) from –40°C to 125°C
Low Quiescent Current:
– 10-μA Active (max)
– 1-μA Shutdown (max)
Supply Range: 1.4 to 3.6 V
Resolution: 12 Bits
Digital Output: SMBus, Two-Wire, and I
2
C
Interface Compatibility
NIST Traceable
2 Applications
•
•
•
•
•
•
•
•
•
Portable and Battery-Powered Applications
Power-supply Temperature Monitoring
Computer Peripheral Thermal Protection
Notebook Computers
Battery Management
Office Machines
Thermostat Controls
Electromechanical Device Temperatures
General Temperature Measurements:
– Industrial Controls
– Test Equipment
– Medical Instrumentations
Simplified Schematic
Supply Voltage
1.4 V to 3.6 V
Supply Bypass
Capacitor
Pullup Resistors
5k
0.01 µF
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Block Diagram
Temperature
1
Diode
Temp.
Sensor
Control
Logic
6
SCL
SDA
TMP102
Two-Wire
Host Controller
1
SCL
SDA
6
GND
2
DS
A/D
Converter
Serial
Interface
5
V+
2
GND
V+
5
3
ALERT
4
ADD0
ALERT
3
OSC
Config.
and Temp.
Register
4
ADD0
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.
TMP102
SBOS397G – AUGUST 2007 – REVISED OCTOBER 2018
www.ti.com
Table of Contents
1
2
3
4
5
6
Features
..................................................................
Applications
...........................................................
Description
.............................................................
Revision History.....................................................
Pin Configuration and Functions
.........................
Specifications.........................................................
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Absolute Maximum Ratings .....................................
Handling Ratings.......................................................
Recommended Operating Conditions.......................
Thermal Information ..................................................
Electrical Characteristics...........................................
Timing Requirements ...............................................
Typical Characteristics ..............................................
1
1
1
2
4
4
4
4
5
5
5
6
7
7.4 Device Functional Modes........................................
14
7.5 Programming...........................................................
15
8
Application and Implementation
........................
21
8.1 Application Information............................................
21
8.2 Typical Application ..................................................
21
9 Power Supply Recommendations......................
23
10 Layout...................................................................
23
10.1 Layout Guidelines .................................................
23
10.2 Layout Example ....................................................
23
11 Device and Documentation Support
.................
24
11.1
11.2
11.3
11.4
11.5
11.6
Documentation Support .......................................
Receiving Notification of Documentation Updates
Community Resources..........................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
24
24
24
24
24
24
7
Detailed Description
..............................................
8
7.1 Overview ...................................................................
8
7.2 Functional Block Diagram .........................................
8
7.3 Feature Description...................................................
8
12 Mechanical, Packaging, and Orderable
Information
...........................................................
24
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision F (December 2015) to Revision G
•
•
•
•
•
•
•
•
Page
Changed input voltage maximum value from: 3.6 V to: 4 V...................................................................................................
4
Changed output voltage maximum value from: 3.6 V to: ((V+) + 0.5) and
≤
4 V ...................................................................
4
Changed Junction-to-ambient thermal resistance from 200 °C/W to 210.3 °C/W .................................................................
5
Changed Junction-to-case (top) thermal resistance from 73.7 °C/W to 105.0 °C/W .............................................................
5
Changed Junction-to-board thermal resistance from 34.4 °C/W to 87.5 °C/W ......................................................................
5
Changed Junction-to-top characterization parameter from 3.1 °C/W to 6.1 °C/W .................................................................
5
Changed Junction-to-board characterization parameter from 34.2 °C/W to 87.0 °C/W.........................................................
5
Added the
Receiving Notification of Documentation Updates
section ................................................................................
24
Changes from Revision E (April 2015) to Revision F
•
•
•
Page
Added TI Design ....................................................................................................................................................................
1
Added NIST Features bullet ..................................................................................................................................................
1
Added last paragraph of
Description
section .........................................................................................................................
1
Changes from Revision D (December 2014) to Revision E
•
•
•
•
•
Page
Changed the MAX value for the Supply voltage from 3.6 to 4 in the
Absolute Maximum Ratings
table ...............................
4
Changed MIN, TYP, and MAX values for the Temperature Accuracy (temperature error) parameter ..................................
5
Changed the frequency from 2.85 to 3.4 MHz in the POWER SUPPLY section of the
Electrical Characteristics
table .......
6
Changed the Temperature Error vs Temperature graph in the
Typical Characteristics
section ............................................
7
Changed the Temperature Error at 25°C graph in the
Typical Characteristics
section .........................................................
7
2
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TMP102
Copyright © 2007–2018, Texas Instruments Incorporated
TMP102
www.ti.com
SBOS397G – AUGUST 2007 – REVISED OCTOBER 2018
Changes from Revision C (October 2012) to Revision D
•
Page
Added
Handling Rating
table,
Feature Description
section,
Device Functional Modes, Application and
Implementation
section,
Power Supply Recommendations
section,
Layout
section,
Device and Documentation
Support
section, and
Mechanical, Packaging, and Orderable Information
section ...............................................................
4
Changed parameters in
Timing Requirements
......................................................................................................................
6
•
Changes from Revision B (October 2008) to Revision C
•
Page
Changed values for
Data Hold Time parameter
in
Timing Requirements
..........................................................................
12
Copyright © 2007–2018, Texas Instruments Incorporated
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Product Folder Links:
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3
TMP102
SBOS397G – AUGUST 2007 – REVISED OCTOBER 2018
www.ti.com
5 Pin Configuration and Functions
DRL Package
6-Pin SOT563
Top View
SCL
GND
ALERT
1
2
3
6
5
4
SDA
V+
ADD0
Pin Functions
PIN
NO.
1
2
3
4
5
6
NAME
SCL
GND
ALERT
ADD0
V+
SDA
I/O
I
—
O
I
I
I/O
DESCRIPTION
Serial clock. Open-drain output; requires a pullup resistor.
Ground
Overtemperature alert. Open-drain output; requires a pullup resistor.
Address select. Connect to GND or V+
Supply voltage, 1.4 V to 3.6 V
Serial data. Open-drain output; requires a pullup resistor.
CBZ
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN
Supply Voltage
Input Voltage
(2)
Output voltage
Operating temperature
Junction temperature
Storage temperature, T
stg
(1)
(2)
–60
–55
–0.5
MAX
4
((V+) + 0.5)
and
≤
4
4
150
150
150
UNIT
V
V
V
°C
°C
°C
Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those specified is not supported.
Input voltage rating applies to all TMP102 input voltages.
6.2 Handling Ratings
VALUE
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001
(1)
V
(ESD)
Electrostatic discharge
Charged-device model (CDM), per JEDEC specification JESD22-C101
Machine model (MM)
(1)
(2)
(2)
UNIT
V
±2000
±1000
±200
Level listed above is the passing level per ANSI, ESDA, and JEDEC JS-001. JEDEC document JEP155 states that 500-V HBM allows
safe manufacturing with a standard ESD control process.
Level listed above is the passing level per EIA-JEDEC JESD22-C101. JEDEC document JEP157 states that 250-V CDM allows safe
manufacturing with a standard ESD control process.
4
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Copyright © 2007–2018, Texas Instruments Incorporated
TMP102
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SBOS397G – AUGUST 2007 – REVISED OCTOBER 2018
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
V+
T
A
Supply voltage
Operating free-air temperature
1.4
–40
NOM
3.3
MAX
3.6
125
UNIT
V
°C
6.4 Thermal Information
TMP102
THERMAL METRIC
R
θJA
R
θJC(top)
R
θJB
ψ
JT
ψ
JB
(1)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
(1)
DRL (SOT563)
6 PINS
210.3
105.0
87.5
6.1
87.0
UNIT
°C/W
°C/W
°C/W
°C/W
°C/W
For more information about traditional and new thermal metrics, see the
Semiconductor and IC Package Thermal Metrics
application
report (SPRA953).
6.5 Electrical Characteristics
At T
A
= 25°C and V
S
= 1.4 to 3.6 V, unless otherwise noted.
PARAMETER
TEMPERATURE INPUT
Range
Accuracy (temperature error)
vs supply
Resolution
DIGITAL INPUT/OUTPUT
Input capacitance
V
IH
V
IL
I
IN
Input logic high
Input logic low
Input current
SDA
V
OL
Output logic
ALERT
Resolution
Conversion time
CR1 = 0, CR0 = 0
Conversion modes
CR1 = 0, CR0 = 1
CR1 = 1, CR0 = 0 (default)
CR1 = 1, CR0 = 1
Timeout time
0 < V
IN
< 3.6 V
V+ > 2 V, I
OL
= 3 mA
V+ < 2 V, I
OL
= 3 mA
V+ > 2 V, I
OL
= 3 mA
V+ < 2 V, I
OL
= 3 mA
0
0
0
0
12
26
0.25
1
4
8
30
40
ms
Conv/s
35
0.7 × (V+)
–0.5
3
3.6
0.3 × (V+)
1
0.4
0.2 × (V+)
0.4
0.2 × (V+)
Bit
ms
V
pF
V
V
μA
–25°C to 85°C
–40°C to 125°C
–40
±0.5
±1
0.2
0.0625
125
±2
±3
0.5
°C
°C
°C/V
°C
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Copyright © 2007–2018, Texas Instruments Incorporated
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