ADVANCED INFORMATION ADVANCED INFORMATION TEMPERATURE SENSOR IC FEATURES ■ ■ ■ ■ ■ TK11044 APPLICATIONS Linear Output Voltage 10 mV/°C Output 2.4 to 8.0 Volt Supply Range Miniature Package (SOT-23L) 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 TK11044 The TK11044 is a temperature sensor IC with a linear output of 10 mV/°C over the range of -25 to + 105 °C. Its wide operating voltage range of 2.4 to 8.0 volts makes it suitable for a number of applications requiring accurate temperature control, such as electronic thermostats for climate control, refrigerators, and industrial process controls. 20 P VCC VOUT GND GND NC NC 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 TK11044 has a compensation pin for a 0.1 µF capacitor that insures stability over the IC's operating temperature range. Note: Both GND pins must connect to GND BLOCK DIAGRAM The TK11044 is available in a miniature SOT 23L-6 surface mount package. VCC VCC ORDERING INFORMATION TEMPERATURE DETECTION CIRCUIT GND TK11044M-1 VOUT + - GND Tape/Reel Code NC NC TAPE/REEL CODE TL: Tape Left May, 1998 TOKO, Inc. Page 1 TK11044 ADVANCED INFORMATION ABSOLUTE MAXIMUM RATINGS Supply Voltage ......................................................... 12 V Operating Voltage ............................................ 2.4 to 8 V Power Dissipation (Note 1) ................................ 200 mW Junction Temperature ........................................... 150 °C Storage Temperature Range ................... -55 to +150 °C Operating Temperature Range .................-25 to +105 °C Lead Soldering Temp. (10 s) ................................. 235 °C TK11044 ELECTRICAL CHARACTERISTICS Test Conditions: VCC = 3.0 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified. SYMBOL V OUT PARAMETER Output Voltage TEST CONDITIONS MIN TYP MAX UNITS TA = 25 °C 965 995 1025 mV TA = 85 °C 1573 1613 1653 mV TA = -25 °C 480 mV TC Temperature Coefficient TA = 25 °C to 85 °C 9.5 10.3 11.1 mV/ °C Line Reg Line Regulation V CC = 3 V to 5 V -20 -5 20 mV Load Reg Load Regulation IOUT = 0 µA to 400 µA 3 20 mV ICC Supply Current TA = 25 °C 160 200 µA IOUT Output Current ∆VOUT ≤ 20 mV 400 µA Note 1: Power dissipation is 200 mW when mounted as recommended. Derate at 1.6 mW/°C for operation above 25 °C. Page 2 May, 1998 TOKO, Inc. ADVANCED INFORMATION TK11044 TEST CIRCUIT VCC VOUT + COUT 0.1 µF 10 µF TYPICAL PERFORMANCE CHARACTERISTICS VCC = 3 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified. INPUT CURRENT vs. TEMPERATURE 16 200 1.5 8 180 1.0 ICC (µA) 2.0 0 160 0.5 -8 140 0 -16 120 -40 0 40 80 120 -40 0 40 80 120 -40 40 80 120 TA (°C) TA (°C) INPUT CURRENT vs. INPUT VOLTAGE LINE REGULATION LOAD REGULATION 20 20 180 10 10 160 VERR (mV) 200 0 0 140 -10 -10 120 -20 -20 2 0 TA (°C) VERR (mV) ICC (µA) LINEARITY ERROR vs. TEMPERATURE VERR (mV) VOUT (V) OUTPUT VOLTAGE vs. TEMPERATURE 4 6 VCC (V) May, 1998 TOKO, Inc. 8 10 2 4 6 VCC (V) 8 10 0 100 200 300 400 IOUT (µA) Page 3 TK11044 ADVANCED INFORMATION TYPICAL PERFORMANCE CHARACTERISTICS VCC = 3 V, IOUT = 0 µA, TA = 25 °C, unless otherwise specified. RIPPLE REJECTION RATIO A RIPPLE REJECTION RATIO B 80 80 COUT = 0.1 µF 1.8 COUT = 0.1 µF 40 40 20 Vrr = 100mVrms 0 1.6 VOUT (V) 60 RR (dB) RR (dB) 60 20 TEMPERATURE RESPONSE A 1.2 Vrr = 100mVrms 0 10 100 1k 10 k 100 k f (Hz) 25 °C TO 85 °C 1.4 1.0 10 100 1k f (Hz) 10 k 100 k 0 20 40 60 80 TIME (s) TEMPERATURE RESPONSE B 1.2 VOUT (V) 1.0 0.8 25 °C TO -30 °C 0.6 0.4 0 20 40 60 80 TIME (s) Page 4 May, 1998 TOKO, Inc. ADVANCED INFORMATION TK11044 PACKAGE OUTLINE Marking Information SOT 23L-6 TK11044 Marking 44C 0.6 6 5 4 e1 3.0 1.0 marking 1 2 3 0.32 e e 0.95 3.5 +0.15 - 0.05 0.1 5 PL e 0.95 M 0.95 e 0.95 Recommended Mount Pad +0.3 - 0.1 2.2 15 max 1.2 0.15 0.1 +0.15 - 0.05 0 ~ 0.1 1.4 max 0.3 (3.4) 0.4 + 0.3 3.3 Dimensions are shown in millimeters Tolerance: x.x = ± 0.2 mm (unless otherwise specified) 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. 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 http://www.ictoko.com May, 1998 TOKO, Inc. © 1998 Toko, Inc. All rights reserved Printed in the USA 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 IC-???-TK11044 Page 5