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TK11042 TEMPERATURE SENSOR IC FEATURES s s s s s Linear Output Voltage 6 mV/C Output 2.7 to 10.0 V Supply Range Miniature Package (SOT-25) Minimum External Parts Count Low Power Consumption APPLICATIONS s s s s s s s s Home and Industrial Thermostats Automotive Climate Control Battery Charger Temperature Monitor Notebook Computer Temperature Monitor Electronic Thermometers Fish Finder Water Temperature Industrial Process Controllers Home Appliance Temperature Control DESCRIPTION The TK11042 is a temperature sensor IC with a linear output of 6 mV/C over the range of -30 to + 105 C. Its wide operating voltage range of 2.7 to 10.0 V makes it suitable for a number of applications requiring accurate temperature control, such as electronic thermostats for climate control, refrigerators, and industrial process controls. A typical application is to make a digital representation of temperature with an A/D converter, or to make a thermal detector with a comparator. The TK11042 has a compensation pin for a 0.1 F capacitor that ensures stability over the IC's operating temperature range. The TK11042 is available in a miniature SOT-25 surface mount package. BLOCK DIAGRAM VCC TK11042 VCC 01 S GND HS NC VOUT Note: Connect pin 2 to GND ORDERING INFORMATION TEMPERATURE SENSOR TK11042M-1 Tape/Reel Code X1 VOUT TAPE/REEL CODE TL: Tape Left January 1999 TOKO, Inc. Page 1 TK11042 ABSOLUTE MAXIMUM RATINGS Supply Voltage ......................................................... 12 V Operating Voltage .......................................... 2.7 to 10 V Power Dissipation (Note 1) ................................ 150 mW Junction Temperature ........................................... 150 C Storage Temperature Range ................... -55 to +150 C Operating Temperature Range .................-30 to +105 C Lead Soldering Temperature (10 s) ...................... 235 C TK11042 ELECTRICAL CHARACTERISTICS Test Conditions: VCC = 3.0 V, IOUT = 0 A, TA = 25 C, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS TA = 25 C VOUT Output Voltage TA = 85 C TA = -30 C TC Li ne R eg Load Reg ICC IOUT Temperature Coefficient Line Regulation Load Regulation Supply Current Output Current TA = 25 C to 85 C VCC = 3 to 10 V IOUT = 0 to 100 A TA = 25 C VOUT 15 mV 5.50 -12 0 MIN 1.776 2.131 TYP 1.794 2.155 1.463 6.02 2 2 110 6.50 12 12 180 400 MAX 1.812 2.179 UNITS V V V mV/ C mV mV A A Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/C for operation above 25 C. 2.27 2.15 OUTPUT (V) 1.94 1.79 1.64 1.52 -20 0 25 50 85 105 AMBIENT TEMPERATURE (C) FIGURE 1. OUTPUT CHARACTERISTICS Page 2 January 1999 TOKO, Inc. TK11042 TEST CIRCUIT VCC GND HS VCC + + 10 F VOUT NC 0.1 F Note: Connect pin 2 to ground TYPICAL PERFORMANCE CHARACTERISTICS VCC = 3 V, TA = 25 C, unless otherwise specified. OUTPUT VOLTAGE vs. SUPPLY VOLTAGE 1.84 200 SUPPLY CURRENT vs. SUPPLY VOLTAGE 250 OUTPUT VOLTAGE vs. OUTPUT CURRENT 1.84 1.82 VOUT (V) 1.80 1.78 1.76 1.82 150 100 50 VOUT (V) ICC (A) 1.80 1.78 1.76 0 0 2 4 6 8 10 VCC (V) 0 2 4 6 8 10 0 200 400 600 800 1000 VCC (V) IOUT (A) LINEARITY ERROR vs. TEMPERATURE +40 SUPPLY CURRENT vs. TEMPERATURE 250 200 VCC = 12 V 5 4 3 2 1 OUTPUT VOLTAGE vs. TEMPERATURE 150 100 VCC = 5 V 50 0 -40 0 40 TA ( C) 80 120 VERR (mV) VERR = VOUT - VREAL +20 V REAL = 2.98 + (TA - 25) X 10 mV 0 -20 VOUT (V) ICC ( A) -40 0 -40 0 40 TA (C) 80 120 -40 0 40 TA (C) 80 120 January 1999 TOKO, Inc. Page 3 TK11042 PACKAGE OUTLINE Marking Information 0.7 SOT-25 (SOT-23-5) TK11042 Marking 1.0 5 4 (0.6) Marking 42C (0.6) 1.6 e 0.95 e' e 0.95 1.90 1 2 3 0.4 +0.15 -0.05 e 0.95 e 0.95 Recommended Mount Pad 0.1 M 2.9 1.4 max 1.1 (0.8) 0.15 - 0.05 0 - 0.1 +0.15 e1 2.4 0.3 0.1 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790 Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 Visit our Internet site at http://www.tokoam.com The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. Page 4 (c) 1999 Toko, Inc. All Rights Reserved IC-228-TK11042 0798O0.0K 0 - 15 2.8 max January 1999 TOKO, Inc. Printed in the USA |
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