TK11043 TEMPERATURE SENSOR IC FEATURES ■ ■ ■ ■ ■ APPLICATIONS Linear Output Voltage 5 mV/°C Output 2.4 to 10.0 V Supply Range Miniature Package (SOT-25) Minimum External Parts Count Low Power Consumption ■ ■ ■ ■ ■ ■ ■ ■ 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 TK11043 is a temperature sensor IC with a linear output of 5 mV/°C over the range of -30 to + 105 °C. Its wide operating voltage range of 2.4 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. TK11043 VCC 01 S HS NC VOUT 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 TK11043 has a compensation pin for a 0.1 µF capacitor that ensures stability over the IC's operating temperature range. GND Note: Connect pin 2 to GND The TK11043 is available in a miniature SOT-25 surface mount package. BLOCK DIAGRAM VCC TK11043M-1 Tape/Reel Code TEMPERATURE SENSOR ORDERING INFORMATION X1 VOUT TAPE/REEL CODE TL: Tape Left January 1999 TOKO, Inc. Page 1 TK11043 ABSOLUTE MAXIMUM RATINGS Supply Voltage ......................................................... 12 V Operating Voltage .......................................... 2.4 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 TK11043 ELECTRICAL CHARACTERISTICS Test Conditions: VCC = 3.0 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified. SYMBOL VOUT PARAMETER TEST CONDITIONS Output Voltage MIN TY P MAX UNITS TA = 25 ° C 1.487 1.502 1.517 V TA = 85 ° C 1.784 1.804 1.824 V TA = -30 ° C 1.225 V TC Temperature Coefficient TA = 25 ° C to 85 ° C 4.50 5.04 5.50 mV/° C Line Reg Line Regulation VCC = 3 to 10 V -12 2 12 mV Load Reg Load Regulation IOUT = 0 to 100 µA 0 2 12 mV ICC Supply Current TA = 25 ° C 110 180 µA IOUT Output Current ∆VOUT ≤ 15 mV 400 µA Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/°C for operation above 25 °C. 1.905 OUTPUT (V) 1.804 1.628 1.502 1.376 1.275 -20 0 25 50 85 105 AMBIENT TEMPERATURE (°C) FIGURE 1. OUTPUT CHARACTERISTICS Page 2 January 1999 TOKO, Inc. TK11043 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. SUPPLY CURRENT vs. SUPPLY VOLTAGE OUTPUT VOLTAGE vs. SUPPLY VOLTAGE OUTPUT VOLTAGE vs. OUTPUT CURRENT 250 1.54 1.54 1.52 1.52 150 100 VOUT (V) VOUT (V) ICC (µA) 200 1.50 1.50 1.48 1.48 1.46 1.46 50 0 0 2 4 6 8 10 0 2 4 6 8 10 0 200 400 600 800 VCC (V) VCC (V) IOUT (µA) SUPPLY CURRENT vs. TEMPERATURE OUTPUT VOLTAGE vs. TEMPERATURE LINEARITY ERROR vs. TEMPERATURE 250 1000 5 +40 VCC = 12 V 150 100 VERR (mV) 4 VOUT (V) ICC (µA) 200 3 2 VERR = VOUT - VREAL +20 VREAL = 2.98 + (TA - 25) X 10 mV 0 -20 VCC = 5 V 50 1 0 0 -40 -40 0 40 80 TA (°C) January 1999 TOKO, Inc. 120 -40 0 40 TA (°C) 80 120 -40 0 40 80 120 TA (°C) Page 3 TK11043 PACKAGE OUTLINE Marking Information SOT-25 (SOT-23-5) 0.7 TK11043 Marking 43C Marking 1.0 4 (0.6) 1.6 e1 2.4 (0.6) 5 1 2 3 0.4 e 0.95 e e 0.95 0.95 e' +0.15 -0.05 1.90 Recommended Mount Pad e 0.95 0.1 M max +0.15 (0.8) ± 0.3 2.8 0 - 15 0.1 0.15 - 0.05 1.1 0 - 0.1 1.4 max 2.9 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 © 1999 Toko, Inc. All Rights Reserved January 1999 TOKO, Inc. IC-229-TK11043 0798O0.0K Printed in the USA