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| TK11031 TEMPERATURE SENSOR IC FEATURES s s s s s s Linear Output Voltage 10 mV/C Output Active High On/Off Control 4.5 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 TK11031 is a temperature sensor IC with a linear output of 10 mV/C over the range of -30 to + 105 C. Its wide operating voltage range of 4.5 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. The device is in the "on" state when the control pin is pulled to a logic high level. 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. Note: Connect Pin 2 to GND. TK11031 VCC GND HS VOUT VCONT The TK11031 has a compensation pin for a 0.1 F capacitor that ensures stability over the IC's operating temperature range. The TK11031 is available in a miniature SOT-25 surface mount package. BLOCK DIAGRAM VCC ORDERING INFORMATION VCC VCONT TK11031M Tape/Reel Code ON/OFF CIRCUIT TEMPERATURE DETECTION CIRCUIT + VOUT - TAPE/REEL CODE TL: Tape Left GND HS January 1999 TOKO, Inc. Page 1 TK11031 ABSOLUTE MAXIMUM RATINGS Supply Voltage ......................................................... 12 V Operating Voltage .......................................... 4.5 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 TK11031 ELECTRICAL CHARACTERISTICS Test Conditions: VCC = 5.0 V, VCONT = 2.4 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 ICC(STBY) Temperature Coefficient Line Regulation Load Regulation Supply Current Output Current Standby Supply Current VOUT 20 mV VCONT 0.6 V TA = 25 C to 85 C VCC = 5 to 10 V IOUT = 0 to 400 A 9.35 -20 MIN 2.952 3.551 TYP 2.982 3.591 2.435 10.15 5 3 90 10.95 20 20 150 400 1 MAX 3.012 3.631 UNITS V V V mV/ C mV mV A A A CONTROL TERMINAL SPECIFICATIONS VCONT(ON) VCONT(OFF) ICONT Control Voltage (ON) Control Voltage (OFF) Control Current VOUT = 2.952 to 3.012 V, Output ON VOUT 0.1 V, Output OFF 1.8 GND 4.5 2.4 VCC 0.6 7.5 V V A Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/C for operation above 25 C. Page 2 January 1999 TOKO, Inc. TK11031 TEST CIRCUIT VCONT VCC ICONT ICC VCONT VOUT VCC COUT + 10 F GND HS 0.1 F IOUT VOUT VCC = 5 V, VCONT = 2.4 V, IOUT = 0 A, TA = 25 C, unless otherwise specified. OUTPUT VOLTAGE vs. TEMPERATURE 4 3 TYPICAL PERFORMANCE CHARACTERISTICS LINEARITY ERROR vs. TEMPERATURE 2 1 TERR ( C) 0 -1 -2 ICC (A) 100 90 80 70 60 INPUT CURRENT vs. TEMPERATURE VOUT (V) 2 1 0 -40 0 40 TA (C) 80 120 -40 0 40 TA (C) 80 120 -40 0 40 TA (C) 80 120 INPUT CURRENT vs. INPUT VOLTAGE 100 90 LINE REGULATION 20 10 0 -10 -20 20 10 0 -10 -20 2 4 6 VCC (V) 8 10 0 LOAD REGULATION VERR (mV) 80 70 60 2 4 6 VCC (V) 8 10 VERR (mV) ICC (A) 100 200 IOUT (A) 300 400 January 1999 TOKO, Inc. Page 3 TK11031 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) VCC = 5 V, VCONT = 2.4 V, IOUT = 0 A, TA = 25 C, unless otherwise specified. INPUT CURRENT vs. CONTROL VOLTAGE 100 75 ICC (A) OUTPUT VOLTAGE vs. CONTROL VOLTAGE 4 3 VOUT (V) CONTROL CURRENT vs. TEMPERATURE 6 5 4 3 2 2 1 0 0 0.6 1.2 VCONT (V) CONTROL CURRENT vs. CONTROL VOLTAGE 8 6 1.8 2.4 50 25 0 0 0.6 1.2 VCONT (V) 1.8 2.4 ICONT (A) -40 0 40 TA (C) 80 120 CONTROL VOLTAGE RESPONSE A 4 COUT = 0.1 F 3 VOUT (V) VOUT (V) 2 1 0 4 CONTROL VOLTAGE RESPONSE B COUT = 0 F 3 2 1 0 ICONT (A) 4 2 0 0 0.6 1.2 VCONT (V) 1.8 2.4 0 1 2 TIME (ms) 3 4 0 1 2 TIME (ms) 3 4 RIPPLE REJECTION RATIO A 80 COUT = 0.1 F 60 RIPPLE REJECTION RATIO B 80 COUT = 0 F 60 VOUT (V) RR (dB) TEMPERATURE RESPONSE A 4 3 2 1 0 RR (dB) 25 TO 85 C 40 20 0 10 100 1k f (Hz) 10 k 100 k Vrr = 100 mVrms 40 20 0 10 100 1k f (Hz) 10 k 100 k Vrr = 100 mVrms 0 20 40 TIME (s) 60 80 Page 4 January 1999 TOKO, Inc. TK11031 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) VCC = 5 V, VCONT = 2.4 V, IOUT = 0 A, TA = 25 C, unless otherwise specified. TEMPERATURE RESPONSE B 4 3 VOUT (V) 2 1 0 0 20 25 TO -30 C 40 TIME (s) 60 80 January 1999 TOKO, Inc. Page 5 TK11031 PACKAGE OUTLINE Marking Information 0.7 SOT-25 (SOT-23-5) TK11031 Marking Marking 31C (0.6) 1.0 5 4 (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 6 (c) 1999 Toko, Inc. All Rights Reserved IC-231-TK11031 0798O0.0K 0 - 15 2.8 max January 1999 TOKO, Inc. Printed in the USA |
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