LM66 NSC | Alldatasheet
Document overview
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Technical content
Features
n Digital outputs support TTL logic levels n Internal temperature sensor n 2 internal comparators with hysteresis n Internal voltage reference n Currently available in 8-pin SO plastic package Key Specifications n Power Supply Voltage 2.7V to 10V n Power Supply Current 250 µA (max) n VREF 1.250V ±1.4% (max) n Hysteresis Temperature 5˚C n Internal Temperature Sensor Output Voltage (+6.20 mV/˚C x T) +400 mV n Temperature Trip Point Accuracy ±3˚C (max) n T1 set point +73˚C n T2 set point +82˚C Simplified Block Diagram and Connection Diagram
Ordering Information
TABLE 1. Order Number LM66CIM- RLSKB LM66CIMX- RLSKB NS Tackage Number M08A M08A Transport Media Bulk Rail 2500 Units Tape & Reel Typical Application DS100854-1 DS100854-2 DS100854-3 April 2000 LM66 Dual Output Internally Preset Thermostat © 2000 National Semiconductor Corporation DS100854 www.national.com
Absolute Maximum Ratings(Note 1) Input Voltage 12V Input Current at any pin (Note 2) 5 mA Package Input Current (Note 2) 20 mA Package Dissipation at T A = 25˚C (Note 3) 900 mW ESD Susceptibility (Note 4) Human Body Model 1000V Machine Model 200V Soldering Information Vapor Phase (60 seconds) 215˚C Infrared (15 seconds) 220˚C Storage Temperature −65˚C to + 150˚C Operating Ratings(Note 1) Operating Temperature Range TMIN ≤ TA ≤ TMAX LM66CIM −40˚C ≤ TA ≤ +125˚C Positive Supply Voltage (V+) +2.7V to +10V Maximum V OUT1 and VOUT2 +10V The following specifications apply for V+ = 2.7 VDC , and VREF load current = 0 µA unless otherwise specified.Boldface lim- its apply for TA =T J =T MIN to TMAX ;all other limits TA =T J = 25˚C unless otherwise specified. Typical LM66CIM Units Symbol Parameter Conditions (Note 6) Limits (Limits) (Note 7) Temperature Sensor Trip Point Accuracy (Includes V REF , Comparator Offset, and +25˚C ≤ TA ≤ +85˚C ±3 ˚C (max) Temperature Sensitivity errors) Trip Point Hysteresis T A = +73˚C 6 4.5 ˚C (min) 7.5 ˚C (max) TA = +82˚C 6 4.5 ˚C (min) 7.5 ˚C (max) Internal Temperature Sensitivity +6.20 mV/˚C Temperature Sensitivity Error +25˚C ≤ T A ≤ +85˚C ±3 ˚C (max) Output Impedance −1 µA ≤ IL ≤ +40 µA 1500 Ω (max) Line Regulation +3.0V ≤ V+ ≤ +10V, +25˚C ≤ TA ≤ +85˚C ±0.36 mV/V (max) +3.0V ≤ V+ ≤ +10V, ±0.61 mV/V (max) +2.7V ≤ V+ ≤ +3.3V ±2.3 mV (max) VREF Output VREF VREF Nominal 1.250V V VREF Error ±1.4 % (max) ±17.5 mV (max) ΔVREF /ΔV+ Line Regulation +3.0V ≤ V+ ≤ +10V 0.13 0.21 mV/V (max) LM66 www.national.com 2
The following specifications apply for V+ = 2.7 VDC , and VREF load current = 50 µA unless otherwise specified.Boldface lim- its apply for TA =T J =T MIN to TMAX ;all other limits TA =T J = 25˚C unless otherwise specified. Symbol Parameter Conditions Typical Limits Units (Note 6) (Note 7) (Limits) V+ Power Supply IS Supply Current V + = +10V 250 µA (max) V+ = +2.7V 250 µA (max) Digital Output(s) I OUT(“1”) Logical “1” Output Leakage Current V+ = +5.0V 1 µA (max) VOUT(“0”) Logical “0” Output Voltage I OUT = +50 µA 0.4 V (max) Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func- tional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.The guaranteed speci- fications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2:When the input voltage (VI) at any pin exceeds the power supply (VI< GND or VI> V+), the current at that pin should be limited to 5 mA. The 20 mA maxi- mum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 5 mA to four. Note 3:The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature),θJA (junction to am- bient thermal resistance) and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PD =( TJmax –TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For this device, TJmax = 125˚C. For this device the typical thermal resistance (θJA) of the different package types when board mounted follow: Package Type θJA M08A 110˚C/W Note 4:The human body model is a 100 pF capacitor discharge through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF capacitor discharged directly into each pin. Note 5:See AN450 “Surface Mounting Methods and Their Effects on Product Reliability” or the section titled “Surface Mount” found in any post 1986 National Semi- conductor Linear Data Book for other methods of soldering surface mount devices. Note 6:Typicals are at TJ =T A = 25˚C and represent most likely parametric norm. Note 7:Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). LM66 www.national.com3
Part Number TemplateThe series of digits labled vw xy z in the part number LM66CIM-vw xy z, describe the set points and the function of OUT1 and OUT2 as follows: The place holders v w describe the set point of T1 as shown in the following table. The place holders xy describe the set point of T2 as shown in the following table. z=0 (Other assignments are reserved.) For example the part number LM66CIM-RLSKB has: T1 = 73˚C, T2 = 82˚C, OUT1 and OUT2 set as active-low open-collector outputs with OUT1 mapped to pin 7 and OUT2 mapped to pin 6. v, w, x and y Temperature (˚C) B− 5 C− 4 D− 3 F− 2 G− 1 H− 0 v, w, x and y Temperature (˚C) V1 0 X1 1 Y1 2 Z1 3 The value of z describes the assignment/function of OUT1 and OUT2 as shown in the following table: Active Low//High Open Collector/ Totem Pole Mapping Value of z Function of OUT1 and OUT2 0 0 0 B Active-Low, Open-Collector, OUT1 mapped to pin 7, OUT2 mapped to pin 6 0 0 1 C Active-Low, Open-Collector, OUT1 mapped to pin 6, OUT2 mapped to pin 7 0 1 0 D Active-Low, Totem Pole, OUT1 mapped to pin 7, OUT2 mapped to pin 6 0 1 1 F Active-Low, Totem Pole, OUT1 mapped to pin 6, OUT2 mapped to pin 7 1 0 0 G Active-High, Open-Collector, OUT1 mapped to pin 7, OUT2 mapped to pin 6 1 0 1 H Active-High, Open-Collector, OUT1 mapped to pin 6, OUT2 mapped to pin 7 1 1 0 J Active-High, Totem Pole, OUT1 mapped to pin 7, OUT2 mapped to pin 6 1 1 1 K Active-High, Totem Pole, OUT1 mapped to pin 6, OUT2 mapped to pin 7 LM66 www.national.com 4
Physical Dimensionsinches (millimeters) unless otherwise noted LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com 8-Lead (0.150" Wide) Molded Small Outline Package, JEDEC Order Number LM66CIM or LM66CIMX LM66 Dual Output Internally Preset Thermostat National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.