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 Obsolete Device
TC07
3V Logic Output Temperature Sensor with Programmable Hysteresis
Features
* User Programmable Hysteresis and Temperature Set Point * Easily Programs with Two External Resistors * Wide Temperature Detection Range - TC07CXA: -0C to +70C - TC07EXA: -40C to +85C - TC07VXA: -40C to +125C * 8-Pin MSOP and 8-Pin SOIC Packages * Cost Effective
General Description
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. 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 -40C to +125C (TC07VXA). It features low (<130A) supply current and with 8-pin MSOP and 8-pin SOIC packages, making it suitable for a wide variety of applications.
Applications
* Power Supply Over-Temperature Detection * Consumer Equipment * Temperature Regulators
Device Selection Table
Part Number TC07COA TC07CUA TC07EOA TC07EUA TC07VOA TC07VUA Package 8-Pin SOIC 8-Pin MSOP 8-Pin SOIC 8-Pin MSOP 8-Pin SOIC 8-Pin MSOP Temperature Range 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +125C -40C to +125C
Functional Block Diagram
Temperature Sensor + Temperature To Voltage Converter - S Q OUT
- OUT + R Q
Package Type
SOIC
NC HSET TSET GND 1 2 3 4 8 VDD NC OUT OUT
Voltage Reference Generator
TC07COA TC07EOA TC07VOA
7 6 5
TSET
HSET VDD GND
MSOP
NC HSET TSET GND 1 2 3 4 8 VDD NC OUT OUT
TC07CUA TC07EUA TC07VUA
7 6 5
(c) 2005 Microchip Technology Inc.
DS21674C-page 1
TC07
1.0 ELECTRICAL CHARACTERISTICS
*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.
Absolute Maximum Ratings*
Supply Voltage ........................................................ 7V Input Voltage Any Input . (GND - 0.3V) to (VDD + 0.3V) Operating Temperature ......................-40C to +125C Storage Temperature, TJ ....................-65C to +150C
TC07 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = Over operational temperature range, unless otherwise specified. Symbol VDD IDD VOH VOL H TSET HSET Parameter Supply Voltage Range Supply Current Output Voltage (High) Output Voltage (Low) Minimum Hysteresis Absolute Accuracy Absolute Accuracy Min 2.7 - 0.8 x VDD - -5 T-3 T-5 Typ - 130 - - - T1 T1 Max 5.5 300 - 0.25 x VDD - T+3 T+5 Unit V A V V C C C 2.7V < VCC < 5.5V IOUT = 500A IOUT = 1mA HSET < TSET T = Programmed Temperature T = Programmed Temperature Test Conditions
DS21674C-page 2
(c) 2005 Microchip Technology Inc.
TC07
2.0 PIN DESCRIPTIONS 3.0 DETAILED DESCRIPTION
The descriptions of the pins are listed in Table 2-1. 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).
TABLE 2-1:
PIN FUNCTION TABLE
Description No Internal Connection Absolute Accuracy Absolute Accuracy Ground Minimum Hysteresis Absolute Accuracy No Internal Connection Supply Voltage Range
Pin No. (8-Pin SOIC) Symbol (8-Pin MSOP) 1 2 3 4 5 6 7 8 NC HSET TSET GND OUT OUT NC VDD
FIGURE 3-1:
TC07 OUTPUT WAVEFORMS
Temperature
Temperature set by Resistor on TSET Hysteresis set by Resistor on HSET
OUT
OUT
(c) 2005 Microchip Technology Inc.
DS21674C-page 3
TC07
4.0
4.1
TYPICAL APPLICATIONS
Trip Point Programming
4.2
Cooling and Heating Applications
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 50C and inactive at 30C, the RT and RH programming resistors are calculated as follows: RT = 0.6 x ((50 + 273.15)2.13) = 132.8k RH = 0.6 x ((30 + 273.15)2.13) = 115.9k 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 5C lower than the temperature value programmed by TSET.
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. 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 NC HSET VDD NC
+
Fan
TC07
TSET OUT Logic Level MOSFET
GND
OUT
FIGURE 4-1:
PROGRAMMING RESISTOR VALUES VS. TEMPERATURE
Temperature
250
TSET
RESISTANCE (k)
200
HSET
150
100
50 -55 -35 -15 5 25 45 65 85 105 125
Out Fan "On"
TEMPERATURE (C)
DS21674C-page 4
(c) 2005 Microchip Technology Inc.
TC07
FIGURE 4-3: TC07 AS A HEATER THERMOSTAT
+2.7 to 5.5V +12V
RT
RH NC HSET VDD Heater NC
TC07
TSET OUT OUT Logic Level MOSFET
GND
Temperature
TSET
HSET
OUT Heater "On"
(c) 2005 Microchip Technology Inc.
DS21674C-page 5
TC07
5.0
5.1
PACKAGING INFORMATION
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 Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size
8-Pin MSOP
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 Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size
8-Pin SOIC (N)
12 mm
8 mm
2500
13 in
DS21674C-page 6
(c) 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) .006 (0.15) .002 (0.05)
6 MAX. .028 (0.70) .016 (0.40)
.008 (0.20) .005 (0.13)
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) .050 (1.27) .016 (0.40) Dimensions: inches (mm)
8 MAX. .
(c) 2005 Microchip Technology Inc.
DS21674C-page 7
TC07
NOTES:
DS21674C-page 8
(c) 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.
(c) 2005 Microchip Technology Inc.
DS21674C-page 9
TC07
NOTES:
DS21674C-page 10
(c) 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. (c) 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(R) 8-bit MCUs, KEELOQ(R) 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.
(c) 2005 Microchip Technology Inc.
DS21674C-page 11
WORLDWIDE SALES AND SERVICE
AMERICAS
Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com Atlanta Alpharetta, GA Tel: 770-640-0034 Fax: 770-640-0307 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 San Jose Mountain View, CA Tel: 650-215-1444 Fax: 650-961-0286 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509
ASIA/PACIFIC
Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 China - Chengdu Tel: 86-28-8676-6200 Fax: 86-28-8676-6599 China - Fuzhou Tel: 86-591-8750-3506 Fax: 86-591-8750-3521 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 China - Shunde Tel: 86-757-2839-5507 Fax: 86-757-2839-5571 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 China - Xian Tel: 86-29-8833-7250 Fax: 86-29-8833-7256
ASIA/PACIFIC
India - Bangalore Tel: 91-80-2229-0061 Fax: 91-80-2229-0062 India - New Delhi Tel: 91-11-5160-8631 Fax: 91-11-5160-8632 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Korea - Gumi Tel: 82-54-473-4301 Fax: 82-54-473-4302 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Malaysia - Penang Tel: 604-646-8870 Fax: 604-646-5086 Philippines - Manila Tel: 632-634-9065 Fax: 632-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-572-9526 Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350
EUROPE
Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 UK - Wokingham Tel: 44-118-921-5869 Fax: 44-118-921-5820
08/24/05
DS21674C-page 12
(c) 2005 Microchip Technology Inc.


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