0.5C Accurate PWM Temperature Sensor in 5-Lead SC-70 Data Sheet TMP05/TMP06 FEATURES FUNCTIONAL BLOCK DIAGRAM V Modulated serial digital output, proportional to DD 5 temperature TMP05/TMP06 0.5C typical accuracy at 25C 1.0C accuracy from 0C to 70C TEMPERATURE SENSOR AVERAGING Two grades available - 1 OUT CORE BLOCK/ Operation from 40C to +150C COUNTER REFERENCE Operation from 3 V to 5.5 V Power consumption 70 W maximum at 3.3 V OUTPUT CONTROL CMOS-/TTL-compatible output on TMP05 CLKAND TIMING Flexible open-drain output on TMP06 CONV/IN 2 GENERATION 3 FUNC Small, low cost, 5-lead SC-70 and SOT-23 packages 4 APPLICATIONS GND Isolated sensors Figure 1. Environmental control systems Computer thermal monitoring Thermal protection Industrial process control Power-system monitors GENERAL DESCRIPTION The CONV/IN input pin is used to determine the rate at which the TMP05/TMP06 measure temperature in continuously The TMP05/TMP06 are monolithic temperature sensors that converting mode and one shot mode. In daisy-chain mode, the generate a modulated serial digital output (PWM), which varies CONV/IN pin operates as the input to the daisy chain. in direct proportion to the temperature of the devices. The high period (T ) of the PWM remains static over all temperatures, H PRODUCT HIGHLIGHTS while the low period (TL) varies. The B Grade version offers a 1. The TMP05/TMP06 have an on-chip temperature sensor high temperature accuracy of 1C from 0C to 70C with that allows an accurate measurement of the ambient excellent transducer linearity. The digital output of the TMP05/ temperature. The measurable temperature range is TMP06 is CMOS-/TTL-compatible and is easily interfaced to 40C to +150C. the serial inputs of most popular microprocessors. The flexible open-drain output of the TMP06 is capable of sinking 5 mA. 2. Supply voltage is 3 V to 5.5 V. The TMP05/TMP06 are specified for operation at supply voltages 3. Space-saving 5-lead SOT-23 and SC-70 packages. from 3 V to 5.5 V. Operating at 3.3 V, the supply current is typically 4. Temperature accuracy is typically 0.5C. Each part needs 370 A. The TMP05/TMP06 are rated for operation over the 40C a decoupling capacitor to achieve this accuracy. to +150C temperature range. It is not recommended to operate these devices at temperatures above 125C for more than a total 5. Temperature resolution of 0.025C. of 5% (5,000 hours) of the lifetime of the devices. They are packaged in low cost, low area SC-70 and SOT-23 packages. 6. The TMP05/TMP06 feature a one shot mode that reduces the average power consumption to 102 W at 1 SPS. The TMP05/TMP06 have three modes of operation: continu- ously converting mode, daisy-chain mode, and one shot mode. A three-state FUNC input determines the mode in which the TMP05/TMP06 operate. Rev. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. Tel: 781.329.4700 www.analog.com No license is granted by implication or otherwise under any patent or patent rights of Analog Fax: 781.461.3113 20042012 Analog Devices, Inc. All rights reserved. Devices. Trademarks and registered trademarks are the property of their respective owners. 03340-001TMP05/TMP06 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Converter Details ....................................................................... 13 Applications ....................................................................................... 1 Functional Description .............................................................. 13 Functional Block Diagram .............................................................. 1 Operating Modes ........................................................................ 13 General Description ......................................................................... 1 TMP05 Output ........................................................................... 16 Product Highlights ........................................................................... 1 TMP06 Output ........................................................................... 16 Revision History ............................................................................... 2 Application Hints ........................................................................... 17 Specifications ..................................................................................... 3 Thermal Response Time ........................................................... 17 TMP05A/TMP06A Specifications ............................................. 3 Self-Heating Effects .................................................................... 17 TMP05B/TMP06B Specifications .............................................. 5 Supply Decoupling ..................................................................... 17 Timing Characteristics ................................................................ 7 Layout Considerations ............................................................... 18 Absolute Maximum Ratings ............................................................ 8 Temperature Monitoring ........................................................... 18 ESD Caution .................................................................................. 8 Daisy-Chain Application ........................................................... 18 Pin Configuration and Function Descriptions ............................. 9 Continuously Converting Application .................................... 24 Typical Performance Characteristics ........................................... 10 Outline Dimensions ....................................................................... 26 Theory of Operation ...................................................................... 13 Ordering Guide .......................................................................... 26 Circuit Information .................................................................... 13 REVISION HISTORY 8/12Rev. B to Rev. C 10/05Rev. 0 to Rev. A Changes to Table 1 ............................................................................ 3 Changes to Specifications Table ...................................................... 3 Changes to Table 2 ............................................................................ 5 Changes to Absolute Maximum Ratings ........................................ 8 Changes to Table 3 ............................................................................ 7 Changes to Figure 4 ........................................................................... 8 Changes to Figure 6, Figure 7, and Figure 8................................ 10 Changes to Figure 7 ........................................................................ 10 Changes to Figure 15 ...................................................................... 11 Changes to Figure 15 ...................................................................... 11 Changes to Functional Description Section ............................... 13 Deleted Figure 18 ............................................................................ 12 Changes to Table 7 and Table 8 ..................................................... 14 Changes to One Shot Mode Section ............................................ 14 Changes to Table 9 and Daisy-Chain Mode Section.................. 15 Changes to Figure 20 ...................................................................... 14 Updated Outline Dimensions ....................................................... 26 Changes to Daisy-Chain Mode Section....................................... 15 Changes to Figure 23 ...................................................................... 15 4/06Rev. A to Rev. B Changes to Equation 5 and Equation 7 ....................................... 17 Changes to Table 1 ............................................................................ 3 Added Layout Considerations Section ........................................ 18 Changes to Table 2 ............................................................................ 5 Updated Outline Dimensions ....................................................... 26 Changes to Table 8 .......................................................................... 14 Changes to Ordering Guide .......................................................... 26 Changes to Table 9 .......................................................................... 15 8/04Revision 0: Initial Version Rev. C Page 2 of 28