TC1132 tc1133 TC1132/1133-3 4/9/98 ?2001 microchip technology inc. ds21359a TC1132 tc1133 functional block diagram ordering information output voltage part no. package at 25 c temp. range TC1132vnb sot-23b-3 750mv ?20 c to +125 c *TC1132vzb to-92 750mv ?20 c to +125 c tc1133vnb sot-23b-3 250mv ?20 c to +100 c tc1133vzb to-92 250mv ?20 c to +100 c * contact factory for availability. pin configuration consumer grade temperature-to-voltage converters features linearized temperature-to-voltage converters direct centigrade output voltage scaling (tc1133) wide temperature measurement range (TC1132) ........................... ?20 c to +125 c excellent temperature converter linearity .. 0.8 c over temperature high temperature converter accuracy at 25 c guaranteed ......................... 3 c small packages ................ to-92-3 and sot-23b-3 applications power supply thermal shut-down temperature-controlled fans temperature measurement/instrumentation temperature regulators consumer electronics general description the TC1132/33 temperature sensors furnish a linear- ized output voltage directly proportional to measured tem- perature. the tc1133 has a temperature measurement range of ?20 c to +100 c. its output voltage is directly calibrated in degrees centigrade (i.e. v out = 10mv/ c x temperature c). an external pull-down resistor to a nega- tive voltage source is required for temperature measure- ment below 0 c. the TC1132 has a temperature measurement range of ?20 c to +125 c, and operates with a single supply. it has the same output voltage slope with temperature as the tc1133 (10mv/ c). small size, low cost and low power operation make the TC1132/33 suitable for a wide range of general purpose temperature measurement applications. v cc v cc v out v out gnd gnd TC1132vnb tc1133vnb TC1132vzb tc1133vzb 1 1 2 2 3 3 tc1133 v cc = 2.2v to 12v v cc v out gnd microcontroller a/d converter sot-23b-3* (top view) to-92-3 note: *sot-23b-3 is equivalent to jedec (to-236)
2 TC1132/1133-3 4/9/98 TC1132 tc1133 consumer grade temperature-to- voltage converters ? 2001 microchip technology inc. ds21359a * static-sensitive device. unused devices must be stored in conductive material. protect devices from static discharge and static fields. stresses above those listed under absolute maximum ratings may cause perma- nent 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 operational 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 ............................................................15v input voltage, any terminal .............. 1.0 to (v cc +0.3v) operating temperature (TC1132) ......... 20 c to +125 c operating temperature (tc1133) ......... 20 c to +100 c storage temperature ............................ 65 c to +150 c lead temperature (soldering, 10 sec) sot-23b-3 ..................................................... +260 c to-92-3 .......................................................... +300 c electrical characteristics : t a = 20 c to +125 c , v cc = 5v 5%, unless otherwise specified. symbol parameter test conditions min typ max unit v cc supply voltage (TC1132) 3.0 12 v v cc supply voltage (tc1133) 2.2 12 v i s supply current note 1 40 80 a i src v out output source current 1.0 ma accuracy at room temperature t a = 25 c (note 2) 3 0.5 +3 c accuracy at minimum temperature t a = 20 c 4 c (note 2) accuracy at maximum temperature TC1132: t a = +125 c 4 +4 c tc1133: t a = +100 c 4 +4 (note 2) nonlinearity note 3 0.8 +0.8 c line regulation 100 v/v a v average slope of output voltage 10 mv/ c v outmax maximum output voltage TC1132: 3.0v v cc 12v v cc 1.2 v tc1133: 2.2v v cc 12v (note 1) detailed description a plot of output voltage versus temperature for both the TC1132 and tc1133 appears in figure 1. the tc1133 can be used with single power supply to measure temperatures from 0 c to 100 c. a pull-down resistor (r1 in figure 2) must be added from v out to the negative power supply for measuring temperatures less than 0 c. the value of the resistor must be chosen to limit the maximum current pulled from the output to the negative supply to 50 a (i.e. r1 = v ss /50 a). notes: 1. v out outputs open circuited. 2. accuracy = difference between calculated output voltage (10mv/ c x device case temperature at specified temperature and power supply) and measured output voltage expressed in c. 3. nonlinearity = deviation of output voltage versus temperature from the best-fit straight line over the device rated temperat ure range. 4. guaranteed by design. output stage both the TC1132 and tc1133 have class a output stages capable of sourcing 1ma. these devices have a limited ability to drive heavy capacitive loads. loads of 50pf (to ground) can be driven directly. for heavier loads, a 2k ? (or greater) resistor should be placed in series with the output for decoupling. if the TC1132/33 is used in a noisy electrical environment, a 0.1 f bypass capacitor from v cc to gnd is recommended.
3 TC1132/1133-3 4/9/98 TC1132 tc1133 consumer grade temperature-to- voltage converters ? 2001 microchip technology inc. ds21359a figure 1. output voltage vs. temperature figure 2. TC1132/33 power supply connections for full scale measurements tc1133 gnd tc1133 ( 20 c to +100 c) v cc = 2.2v to 12.0v min. v v out cc v out r1 r1 = v ss /50 a v ss TC1132 gnd TC1132 ( 20 c to +125 c) v cc = 3.0v to 12.0v v cc v out v out 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1 0.2 40 v out (volts) temperature ( c) 30 20 10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 TC1132 tc1133 TC1132: v out = (10mv/ c) (temperature c) + 500mv tc1133: v out = (10mv/ c) (temperature c)
4 TC1132/1133-3 4/9/98 TC1132 tc1133 consumer grade temperature-to- voltage converters ? 2001 microchip technology inc. ds21359a typical characteristics supply current vs. temperature 20 sec/div v out (from power initially applied) vs. time (turn-on response) 2v/div 0v 500mv/div 0v air velocity (fpm) thermal time constant (sec) vs. air velocity 60 50 40 30 20 10 0 thermal time (sec) 0 400 600 800 1000 200 temperature ( c) 100 80 60 40 20 10 supply current ( a) 50 25 0 25 50 75 100 125 v cc = +5v thermal response in still air vs.time time (sec.) 125 100 75 50 25 0 percent of final value (%) 0 20 40 60 80 100
5 TC1132/1133-3 4/9/98 TC1132 tc1133 consumer grade temperature-to- voltage converters ? 2001 microchip technology inc. ds21359a taping forms marking & = part number code and temperature range TC1132 = ac 20 c to 125 c tc1133 = ad 20 c to 100 c ex: 1132 = ex: 1133 = = year and quarter = lot id & = tc (fixed) , & = blank , , & = part number = temperature range c = 20 c to +125 c d = 20 c to +100 c , , , & = traceability code sot-23b-3 to-92 a d 9 14 4 10 15 5 8 13 3 7 12 2 6 11 1 a c user direction of feed device marking component taping orientation for 3-pin sot-23b (jedec to-236) devices pin 1 standard reel component orientation for tr suffix device (mark right side up) w p package carrier width (w) pitch (p) part per full reel reel size 3-pin sot-23b 8 mm 4 mm 3000 7 in carrier tape, number of components per reel and reel size
6 TC1132/1133-3 4/9/98 TC1132 tc1133 consumer grade temperature-to- voltage converters ? 2001 microchip technology inc. ds21359a taping forms (cont.) mark face component taping orientation for 3-pin to-92 user direction of feed w p seal tape back tape m ark f ace m ark f ace m ark f ace
7 TC1132/1133-3 4/9/98 TC1132 tc1133 consumer grade temperature-to- voltage converters ? 2001 microchip technology inc. ds21359a dimensions: inches (mm) package dimensions sot-23b-3* *note: sot-23b-3 is equivalent to jedec (to-236) .021 (0.54) .015 (0.37) .055 (1.40) .047 (1.20) .104 (2.64) .083 (2.10) .120 (3.05) .105 (2.67) .007 (0.18) .003 (0.08) .010 (0.25) .005 (0.13) .024 (0.60) .017 (0.44) .004 (0.10) .001 (0.02) .040 (1.02) .031 (0.79) .081 (2.05) .070 (1.78) 8 max. to-92-3 .105 (2.67) .095 (2.41) .018 (0.46) .015 (0.38) .135 (3.43) min. .500 (12.70) min. .210 (5.33) .170 (4.32) .205 (5.21) .175 (4.45) .125 (3.18) .105 (2.67) .080 (2.03) .055 (1.40) .045 (1.14) .018 (0.46) .015 (0.38)
8 TC1132/1133-3 4/9/98 TC1132 tc1133 consumer grade temperature-to- voltage converters ? 2001 microchip technology inc. ds21359a information contained in this publication regarding device applications and the like is intended through suggestion only and ma y be superseded by updates. it is your responsibility to ensure that your application meets with your specifications. no representation or warrant y is given and no liability is assumed by microchip technology incorporated with respect to the accuracy or use of such information, or infringement of patent s or other intellectual property rights arising from such use or otherwise. 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, except as maybe explicitly expressed herein, under any intellec- tual property rights. the microchip logo and name are registered trademarks of microchip technology inc. in the u.s.a. and othe r countries. all rights reserved. all other trademarks mentioned herein are the property of their respective companies. all rights reserved. ? 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