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PDF ( 数据手册 , 数据表 ) TMP102

零件编号 TMP102
描述 Low Power Digital Temperature Sensor
制造商 Burr-Brown Corporation
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TMP102 数据手册, 描述, 功能
BurrĆBrown Products
from Texas Instruments
TMP102
SBOS397 – AUGUST 2007
Low Power Digital Temperature Sensor
With SMBus™/Two-Wire Serial Interface in SOT563
FEATURES
TINY SOT563 PACKAGE
ACCURACY: 0.5°C (–25°C to +85°C)
LOW QUIESCENT CURRENT:
10μA Active (max)
1μA Shutdown (max)
SUPPLY RANGE: 1.4V to 3.6V
RESOLUTION: 12 Bits
DIGITAL OUTPUT: Two-Wire Serial Interface
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
DESCRIPTION
The TMP102 is a two-wire, serial output temperature
sensor available in a tiny SOT563 package.
Requiring no external components, the TMP102 is
capable of reading temperatures to a resolution of
0.0625°C.
The TMP102 features SMBus and two-wire interface
compatibility, and allows up to four devices on one
bus. It also features an SMB alert function.
The TMP102 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.
Temperature
SCL 1
Diode
Temp.
Sensor
Control
Logic
6 SDA
GND
2 DS
A/D
Converter
Serial
Interface
5
V+
ALERT
3
OSC
Config.
and Temp.
Register
4
ADD0
TMP102
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SMBus is a trademark of Intel, Inc.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated







TMP102 pdf, 数据表
TMP102
SBOS397 – AUGUST 2007
After power-up or general-call reset, the TMP102
immediately starts a conversion, as shown in
Figure 9. The first result is available after 26ms
(typical). The active quiescent current during
conversion is 40μA (typical at +27°C). The quiescent
current during delay is 2.2μA (typical at +27°C).
Measured
Temperature
www.ti.com
THIGH
TLOW
Delay(1)
26ms
26ms
Startup
Start of
Conversion
NOTE: (1) Delay is set by CR1 and CR0.
Figure 9. Conversion Start
SHUTDOWN MODE (SD)
The Shutdown mode bit saves maximum power by
shutting down all device circuitry other than the serial
interface, reducing current consumption to typically
less than 0.5μA. Shutdown mode is enabled when
the SD bit is '1'; the device shuts down when current
conversion is completed. When SD is equal to '0',
the device maintains a continuous conversion state.
THERMOSTAT MODE (TM)
The Thermostat mode bit indicates to the device
whether to operate in Comparator mode (TM = 0) or
Interrupt mode (TM = 1). For more information on
comparator and interrupt modes, see the High- and
Low-Limit Registers section.
POLARITY (POL)
The Polarity bit allows the user to adjust the polarity
of the ALERT pin output. If POL = 0, the ALERT pin
will be active low, as shown in Figure 10. For POL =
1, the ALERT pin will be active high, and the state of
the ALERT pin is inverted.
TMP102 ALERT PIN
(Comparator Mode)
POL = 0
TMP102 ALERT PIN
(Interrupt Mode)
POL = 0
TMP102 ALERT PIN
(Comparator Mode)
POL = 1
TMP102 ALERT PIN
(Interrupt Mode)
POL = 1
Read
Read
Time
Read
Figure 10. Output Transfer Function Diagrams
FAULT QUEUE (F1/F0)
A fault condition exists when the measured
temperature exceeds the user-defined limits set in
the THIGH and TLOW registers. Additionally, the
number of fault conditions required to generate an
alert may be programmed using the fault queue. The
fault queue is provided to prevent a false alert as a
result of environmental noise. The fault queue
requires consecutive fault measurements in order to
trigger the alert function. Table 9 defines the number
of measured faults that may be programmed to
trigger an alert condition in the device. For THIGH and
TLOW register format and byte order, see the High-
and Low-Limit Registers section.
Table 9. TMP102 Fault Settings
F1 F0 CONSECUTIVE FAULTS
00
1
01
2
10
4
11
6
8 Submit Documentation Feedback







TMP102 equivalent, schematic
www.ti.com
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PACKAGE MATERIALS INFORMATION
15-Aug-2007
TAPE AND REEL INFORMATION
Pack Materials-Page 1










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