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Diode

Temp.

Sensor

A/D

Converter

OSC

Control

Logic

Serial

Interface

Config.

andTemp.

Temperature

SCL

ALERT

SDA

GND

2 5

V+

ADD0

TMP102

www.ti.com

SBOS397C –AUGUST 2007–REVISED OCTOBER 2012

Low Power Digital Temperature Sensor

With SMBus™/Two-Wire Serial Interface in SOT563

Check for Samples: TMP102

FEATURES

DESCRIPTION

The TMP102 is a two-wire, serial output temperature

• TINY SOT563 PACKAGE

sensor available in a tiny SOT563 package. Requiring

• ACCURACY: 0.5°C (–25°C to +85°C)

no external components, the TMP102 is capable of

• LOW QUIESCENT CURRENT:

reading temperatures to a resolution of 0.0625°C.

10μA Active (max)

The TMP102 features SMBus and two-wire interface

1μA Shutdown (max)

compatibility, and allows up to four devices on one

• SUPPLY RANGE: 1.4V to 3.6V

bus. It also features an SMB alert function.

• RESOLUTION: 12 Bits

The TMP102 is ideal for extended temperature

• DIGITAL OUTPUT: Two-Wire Serial Interface

measurement in a variety of communication,

computer, consumer, environmental, industrial, and

instrumentation applications. The device is specified

APPLICATIONS

for operation over a temperature range of –40°C to

• PORTABLE AND BATTERY-POWERED

+125°C.

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

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.

2SMBus is a trademark of Intel, Inc.

3All 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.

Summary of content (22 pages)

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TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 Low Power Digital Temperature Sensor With SMBus™/Two-Wire Serial Interface in SOT563 Check for Samples: TMP102 FEATURES 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. 1 23 • • • TINY SOT563 PACKAGE ACCURACY: 0.
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TMP102 SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 ELECTRICAL CHARACTERISTICS At TA = +25°C and VS = +1.4V to +3.6V, unless otherwise noted. TMP102 PARAMETER CONDITIONS MIN TYP MAX UNIT TEMPERATURE INPUT Range –40 Accuracy (Temperature Error) +125 °C –25°C to +85°C 0.5 2 °C –40°C to +125°C 1 3 °C 0.2 0.5 °C/V vs Supply Resolution 0.0625 °C DIGITAL INPUT/OUTPUT Input Logic Levels: VIH VIL Input Current IIN 0.7 (V+) 3.6 –0.5 0.3 (V+) V 1 μA 0 < VIN < 3.
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TMP102 SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C and V+ = 3.3V, unless otherwise noted. SHUTDOWN CURRENT vs TEMPERATURE 20 10 18 9 16 8 14 7 12 6 10 ISD (mA) IQ (mA) QUIESCENT CURRENT vs TEMPERATURE (4 Conversions per Second) 3.6V Supply 8 6 3.6V Supply 4 3 4 1.4V Supply 2 1.4V Supply 2 1 0 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 40 60 80 100 120 140 160 Figure 1. Figure 2.
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TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 APPLICATION INFORMATION The TMP102 is a digital temperature sensor that is optimal for thermal-management and thermalprotection applications. The TMP102 is two-wire- and SMBus interface-compatible, and is specified over a temperature range of –40°C to +125°C. Pull-up resistors are required on SCL, SDA, and ALERT. A 0.01μF bypass capacitor is recommended, as shown in Figure 7.
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TMP102 SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 www.ti.com TEMPERATURE REGISTER The Temperature Register of the TMP102 is configured as a 12-bit, read-only register (Configuration Register EM bit = '0', see the Extended Mode section), or as a 13-bit, read-only register (Configuration Register EM bit = '1') that stores the output of the most recent conversion. Two bytes must be read to obtain data, and are described in Table 3 and Table 4.
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TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 Table 6. 13-Bit Temperature Data Format TEMPERATURE (°C) DIGITAL OUTPUT (BINARY) HEX 150 0 1001 0110 0000 0960 128 0 1000 0000 0000 0800 127.9375 0 0111 1111 1111 07FF 100 0 0110 0100 0000 0640 80 0 0101 0000 0000 0500 75 0 0100 1011 0000 04B0 50 0 0011 0010 0000 0320 25 0 0001 1001 0000 0190 0.25 0 0000 0000 0100 0004 0 0 0000 0000 0000 0000 –0.
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TMP102 SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 www.ti.com 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).
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TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 CONVERTER RESOLUTION (R1/R0) R1/R0 are read-only bits. The TMP102 converter resolution is set on start up to '11'. This sets the temperature register to a 12 bit-resolution. ONE-SHOT/CONVERSION READY (OS) The TMP102 features a One-Shot Temperature Measurement mode. When the device is in Shutdown mode, writing a ‘1’ to the OS bit starts a single temperature conversion. During the conversion, the OS bit reads '0'.
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TMP102 SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 www.ti.com SERIAL INTERFACE The TMP102 operates as a slave device only on the two-wire bus and SMBus. Connections to the bus are made via the open-drain I/O lines SDA and SCL. The SDA and SCL pins feature integrated spike suppression filters and Schmitt triggers to minimize the effects of input spikes and bus noise. The TMP102 supports the transmission protocol for both fast (1kHz to 400kHz) and high-speed (1kHz to 3.4MHz) modes.
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TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 SMBus ALERT FUNCTION HIGH-SPEED (Hs) MODE The TMP102 supports the SMBus Alert function. When the TMP102 operates in Interrupt mode (TM = '1'), the ALERT pin may be connected as an SMBus Alert signal. When a master senses that an ALERT condition is present on the ALERT line, the master sends an SMBus Alert command (00011001) to the bus.
PAGE 12
TMP102 SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 www.ti.com TIMING DIAGRAMS The TMP102 is two-wire and SMBus compatible. Figure 12 to Figure 15 describe the various operations on the TMP102. Parameters for Figure 12 are defined in Table 13. Bus definitions are: Bus Idle: Both SDA and SCL lines remain high. Start Data Transfer: A change in the state of the SDA line, from high to low, while the SCL line is high, defines a START condition. Each data transfer is initiated with a START condition.
PAGE 13
TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 TWO-WIRE TIMING DIAGRAMS t(LOW) tF tR t(HDSTA) SCL t(HDSTA) t(HIGH) t(SUSTO) t(SUSTA) t(HDDAT) t(SUDAT) SDA t(BUF) P S S P Figure 12.
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TMP102 SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 www.ti.
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TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from the page numbers in the current version. Changes from Revision B (October 2008) to Revision C • Page Changed values for Data Hold Time parameter in Table 13 ..............................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 9-Jun-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TMP102AIDRLR SOT DRL 6 4000 180.0 8.4 1.98 1.78 0.69 4.0 8.0 Q3 TMP102AIDRLR SOT DRL 6 4000 180.0 9.5 1.78 1.78 0.69 4.0 8.0 Q3 TMP102AIDRLT SOT DRL 6 250 180.0 9.5 1.78 1.78 0.69 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 9-Jun-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TMP102AIDRLR SOT DRL 6 4000 202.0 201.0 28.0 TMP102AIDRLR SOT DRL 6 4000 184.0 184.0 19.0 TMP102AIDRLT SOT DRL 6 250 184.0 184.0 19.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.