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| TK11034 TEMPERATURE SENSOR IC FEATURES s s s s s s Linear Output Voltage 10 mV/C Output Active High On/Off Control 2.4 to 8.0 V Supply Range Miniature Package (SOT-23L) 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 TK11034 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 2.4 to 8.0 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: Both GND pins must connect to GND TK11034 VCC 01 S VOUT GND NC GND VCONT The TK11034 has a compensation pin for a 0.1 F capacitor that ensures stability over the IC's operating temperature range. The TK11034 is available in a miniature SOT-23L surface mount package. BLOCK DIAGRAM VCC ORDERING INFORMATION VCC VCONT TK11034M Tape/Reel Code ON/OFF CIRCUIT TEMPERATURE DETECTION CIRCUIT + VOUT - TAPE/REEL CODE TL: Tape Left GND GND January 1999 TOKO, Inc. Page 1 TK11034 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 .................-30 to +105 C Lead Soldering Temperature (10 s) ...................... 235 C TK11034 ELECTRICAL CHARACTERISTICS Test Conditions: VCC = 3.0 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 Line Reg Load R eg ICC IOUT ICC(STBY) Temperature Coefficient Line Regulation Load Regulation Supply Current Output Current Standby Supply Current TA = 25 C to 85 C VCC = 3 to 8 V IOUT = 0 to 400 A VCONT = 2.4 V VOUT 20 mV VCONT 0.6 V 9.5 -20 MIN 965 1573 TYP 995 1613 428.5 10.3 5 3 160 11.1 20 20 220 400 1 MAX 1025 1653 UNITS mV mV mV mV/ C mV mV A A A CONTROL TERMINAL SPECIFICATIONS VCONT(ON) VCONT(OFF) ICONT Control Voltage (ON) Control Voltage (OFF) Control Current VOUT = 965 to 1025 mV, 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 200 mW when mounted as recommended. Derate at 1.6 mW/C for operation above 25 C. Page 2 January 1999 TOKO, Inc. TK11034 TEST CIRCUIT VCONT VCC ICONT ICC VCONT VOUT VCC COUT + 10 F GND GND 0.1 F IOUT VOUT VCC = 3 V, VCONT = 2.4 V, IOUT = 0 A, TA = 25 C, unless otherwise specified. OUTPUT VOLTAGE vs. TEMPERATURE 2.0 1.5 VERR (mV) VOUT (V) TYPICAL PERFORMANCE CHARACTERISTICS LINEARITY ERROR vs. TEMPERATURE 16 8 0 -8 -16 ICC (A) INPUT CURRENT vs. TEMPERATURE 200 180 160 140 120 1.0 0.5 0.0 -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 200 180 LINE REGULATION 20 10 0 -10 -20 20 10 0 -10 -20 2 4 6 VCC (V) 8 10 0 LOAD REGULATION VERR (mV) 160 140 120 2 4 6 VCC (V) 8 10 VERR (mV) ICC (A) 100 200 IOUT (A) 300 400 January 1999 TOKO, Inc. Page 3 TK11034 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) VCC = 3 V, VCONT = 2.4 V, IOUT = 0 A, TA = 25 C, unless otherwise specified. INPUT CURRENT vs. CONTROL VOLTAGE 200 150 ICONT (A) ICC (A) OUTPUT VOLTAGE vs. CONTROL VOLTAGE 1.6 1.2 VOUT (V) 0.8 0.4 0 0 0.6 1.2 VCONT (V) CONTROL CURRENT vs. CONTROL VOLTAGE 8 6 CONTROL CURRENT vs. TEMPERATURE 6 5 4 3 2 100 50 0 1.8 2.4 0 0.6 1.2 VCONT (V) 1.8 2.4 -40 0 40 TA (C) 80 120 CONTROL VOLTAGE RESPONSE A 1.6 COUT = 0.1 F 1.2 VOUT (V) VOUT (V) 0.8 0.4 1.6 CONTROL VOLTAGE RESPONSE B COUT = 0 F 1.2 0.8 0.4 ICONT (A) 4 2 0 0 0.6 1.2 VCONT (V) 1.8 2.4 0 0 1 2 TIME (ms) 3 4 0 0 1 2 TIME (ms) 3 4 RIPPLE REJECTION RATIO A 80 COUT = 0.1 F 60 60 80 RIPPLE REJECTION RATIO B TEMPERATURE RESPONSE A 1.8 COUT = 0 F 1.6 VOUT (V) RR (dB) RR (dB) 40 20 Vrr = 100 mVrms 0 10 100 1k f (Hz) 10 k 100 k 40 20 0 10 100 1k f (Hz) 10 k 100 k 1.4 1.2 1.0 0 20 25 TO 85 C Vrr = 100 mVrms 40 TIME (s) 60 80 Page 4 January 1999 TOKO, Inc. TK11034 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) VCC = 3 V, VCONT = 2.4 V, IOUT = 0 A, TA = 25 C, unless otherwise specified. TEMPERATURE RESPONSE B 1.2 1.0 VOUT (V) 0.8 0.6 0.4 0 20 25 TO 85 C 40 TIME (s) 60 80 January 1999 TOKO, Inc. Page 5 TK11034 PACKAGE OUTLINE Marking Information Marking 34C SOT-23L (SOT-23L-6) TK11034 0.4 6 5 4 Marking +0.15 - 0.05 0.1 M 0.6 1.0 Product Code Voltage Code 1 e 2 e 0.95 3 0.32 5 PL 0.95 +0.15 - 0.05 0.1 M e 0.95 e 0.95 Recommended Mount Pad 3.5 +0.3 - 0.1 (3.4) 2.2 0.3 1.4 max e1 3.0 0 - 0.1 +0.15 - 0.05 15 max 0.4 + 0.3 1.2 0.15 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) 3.3 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-xxx-TK11034 0798O0.0K January 1999 TOKO, Inc. Printed in the USA |
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