Obsolete Device TC07 3V Logic Output Temperature Sensor with Programmable Hysteresis Features General Description • User Programmable Hysteresis and Temperature Set Point • Easily Programs with Two External Resistors • Wide Temperature Detection Range - TC07CXA: -0°C to +70°C - TC07EXA: -40°C to +85°C - TC07VXA: -40°C to +125°C • 8-Pin MSOP and 8-Pin SOIC Packages • Cost Effective The TC07 is a programmable, logic output temperature detector that operates from power supply levels as low as 2.7V. Programming is accomplished with external resistors connected from the temperature set point input (TSET) and the hysteresis control input (HSET) to VDD. Applications • Power Supply Over-Temperature Detection • Consumer Equipment • Temperature Regulators Device Selection Table Part Number Package Temperature Range TC07COA 8-Pin SOIC 0°C to +70°C TC07CUA 8-Pin MSOP 0°C to +70°C TC07EOA 8-Pin SOIC -40°C to +85°C Complementary outputs (OUT and OUT) are driven active when temperature exceeds the temperature threshold programmed by the resistor on TSET. The states of these outputs are maintained (latched) until temperature falls below threshold programmed by the resistor on HSET. The TC07 has an operating temperature range of -40°C to +125°C (TC07VXA). It features low (<130μA) supply current and with 8-pin MSOP and 8-pin SOIC packages, making it suitable for a wide variety of applications. Functional Block Diagram Temperature Sensor + – TC07EUA 8-Pin MSOP -40°C to +85°C 8-Pin SOIC -40°C to +125°C – TC07VUA 8-Pin MSOP -40°C to +125°C + NC 1 2 TSET 3 GND 4 TC07COA TC07EOA TC07VOA OUT R Q Voltage Reference Generator SOIC HSET Q OUT Temperature To Voltage Converter TC07VOA Package Type S 8 VDD 7 NC 6 OUT 5 OUT 8 VDD TSET HSET VDD GND MSOP NC 1 HSET 2 TSET 3 GND 4 TC07CUA TC07EUA TC07VUA © 2005 Microchip Technology Inc. 7 NC 6 OUT 5 OUT DS21674C-page 1 TC07 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Supply Voltage ........................................................ 7V Input Voltage Any Input . (GND – 0.3V) to (VDD + 0.3V) Operating Temperature ......................-40°C to +125°C Storage Temperature, TJ ....................-65°C to +150°C *Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TC07 ELECTRICAL SPECIFICATIONS Electrical Characteristics: TA = Over operational temperature range, unless otherwise specified. Symbol Parameter VDD Supply Voltage Range IDD Supply Current Min Typ Max Unit 2.7 – 5.5 V – 130 300 μA Test Conditions 2.7V < VCC < 5.5V VOH Output Voltage (High) 0.8 x VDD – – V IOUT = 500μA VOL Output Voltage (Low) – – 0.25 x VDD V IOUT = 1mA H Minimum Hysteresis -5 – – °C HSET < TSET TSET Absolute Accuracy T-3 T±1 T+3 °C T = Programmed Temperature HSET Absolute Accuracy T-5 T±1 T+5 °C T = Programmed Temperature DS21674C-page 2 © 2005 Microchip Technology Inc. TC07 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. (8-Pin SOIC) Symbol (8-Pin MSOP) Description 1 NC 2 HSET Absolute Accuracy No Internal Connection 3 TSET Absolute Accuracy 4 GND Ground 5 OUT Minimum Hysteresis 6 OUT Absolute Accuracy 7 NC No Internal Connection 8 VDD Supply Voltage Range 3.0 DETAILED DESCRIPTION The TC07 programs with resistors connected from the TSET and HSET inputs to VDD. Output pins OUT and OUT are driven active when the temperature exceeds the setting determined by the programming resistor on TSET. The outputs are maintained (latched) in their active states until temperature drops below the setting determined by the programming resistor on HSET (Figure 3-1). FIGURE 3-1: TC07 OUTPUT WAVEFORMS Temperature Temperature set by Resistor on TSET Hysteresis set by Resistor on HSET OUT OUT © 2005 Microchip Technology Inc. DS21674C-page 3 TC07 4.0 TYPICAL APPLICATIONS 4.2 4.1 Trip Point Programming The TC07 can be used to control a DC fan as shown in Figure 4-2. The fan turns on when the sensed temperature rises above the temperature set at TSET and remains on until the temperature falls below the temperature set at HSET. The amount of “cooling" performed by the fan is dependent on the programmed hysteresis. The resistor values required to achieve the desired trip point temperatures on TSET and HSET are calculated using the formula below: RTRIP = 0.6 x T 2.13 Where: RTRIP = Programming resistor value in Ohms T = Desired trip point temperature in degrees Kelvin. For example, to program the TC07 outputs to go active at 50°C and inactive at 30°C, the RT and RH programming resistors are calculated as follows: RT = 0.6 x ((50 + 273.15)2.13) = 132.8kΩ RH = 0.6 x ((30 + 273.15)2.13) = 115.9kΩ Cooling and Heating Applications Figure 4-3 shows the TC07 acting as a heater thermostat. Circuit operation is identical to that of the cooling fan application in Figure 4-2. FIGURE 4-2: TC07 AS A FAN CONTROLLER +2.7 to 5.5V +12V RT RH VDD NC Resistance values for TSET and HSET can be approximated using Figure 4-1. Care must be taken to ensure the HSET programming resistor is a smaller value than the TSET programming resistor. The temperature programmed on HSET must be at least 5°C lower than the temperature value programmed by TSET. FIGURE 4-1: NC HSET TC07 TSET OUT GND OUT Logic Level MOSFET PROGRAMMING RESISTOR VALUES VS. TEMPERATURE Temperature 250 RESISTANCE (kΩ) + Fan 200 TSET HSET 150 100 50 -55 -35 -15 5 25 45 TEMPERATURE (°C) DS21674C-page 4 65 85 105 125 Out Fan "On" © 2005 Microchip Technology Inc. TC07 FIGURE 4-3: TC07 AS A HEATER THERMOSTAT +2.7 to 5.5V RT +12V RH NC VDD HSET NC Heater Temperature TC07 TSET OUT GND OUT Logic Level MOSFET TSET HSET OUT Heater "On" © 2005 Microchip Technology Inc. DS21674C-page 5 TC07 5.0 PACKAGING INFORMATION 5.1 Package Marking Information Package marking data not available at this time. 5.2 Taping Form Component Taping Orientation for 8-Pin MSOP Devices User Direction of Feed PIN 1 W P Standard Reel Component Orientation for TR Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package 8-Pin MSOP Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 12 mm 8 mm 2500 13 in Component Taping Orientation for 8-Pin SOIC (Narrow) Devices User Direction of Feed PIN 1 W P Standard Reel Component Orientation for TR Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package 8-Pin SOIC (N) DS21674C-page 6 Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 12 mm 8 mm 2500 13 in © 2005 Microchip Technology Inc. TC07 5.3 Package Dimensions 8-Pin MSOP PIN 1 .122 (3.10) .114 (2.90) .197 (5.00) .189 (4.80) .026 (0.65) TYP. .122 (3.10) .114 (2.90) .043 (1.10) MAX. .016 (0.40) .010 (0.25) .008 (0.20) .005 (0.13) 6° MAX. .006 (0.15) .002 (0.05) .028 (0.70) .016 (0.40) Dimensions: inches (mm) 8-Pin SOIC PIN 1 .157 (3.99) .150 (3.81) .244 (6.20) .228 (5.79) .050 (1.27) TYP. .197 (5.00) .189 (4.80) .069 (1.75) .053 (1.35) .020 (0.51) .010 (0.25) .013 (0.33) .004 (0.10) .010 (0.25) .007 (0.18) 8° MAX.. .050 (1.27) .016 (0.40) Dimensions: inches (mm) © 2005 Microchip Technology Inc. DS21674C-page 7 TC07 NOTES: DS21674C-page 8 © 2005 Microchip Technology Inc. TC07 SALES AND SUPPORT Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following: 1. 2. 3. Your local Microchip sales office The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277 The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. © 2005 Microchip Technology Inc. DS21674C-page 9 TC07 NOTES: DS21674C-page 10 © 2005 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Linear Active Thermistor, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance and WiperLock are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2005, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company’s quality system processes and procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. © 2005 Microchip Technology Inc. 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