LM61BIZ/NOPB [TI]
LM61 2.7V, SOT-23 or TO-92 Temperature Sensor; LM61 2.7V , SOT- 23或TO- 92温度传感器型号: | LM61BIZ/NOPB |
厂家: | TEXAS INSTRUMENTS |
描述: | LM61 2.7V, SOT-23 or TO-92 Temperature Sensor |
文件: | 总18页 (文件大小:1140K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LM61
www.ti.com
SNIS121I –JUNE 1999–REVISED FEBRUARY 2013
LM61 2.7V, SOT-23 or TO-92 Temperature Sensor
Check for Samples: LM61
1
FEATURES
DESCRIPTION
The LM61 is
a
precision integrated-circuit
2
•
•
•
•
Calibrated Linear Scale Factor of +10 mV/°C
Rated for Full −30° to +100°C Range
Suitable for Remote Applications
UL Recognized Component
temperature sensor that can sense a −30°C to
+100°C temperature range while operating from a
single +2.7V supply. The LM61's output voltage is
linearly proportional to Celsius (Centigrade)
temperature (+10 mV/°C) and has a DC offset of
+600 mV. The offset allows reading negative
temperatures without the need for a negative supply.
The nominal output voltage of the LM61 ranges from
+300 mV to +1600 mV for a −30°C to +100°C
temperature range. The LM61 is calibrated to provide
accuracies of ±2.0°C at room temperature and ±3°C
over the full −25°C to +85°C temperature range.
APPLICATIONS
•
•
•
•
•
•
•
•
•
Cellular Phones
Computers
Power Supply Modules
Battery Management
FAX Machines
Printers
The LM61's linear output, +600 mV offset, and factory
calibration simplify external circuitry required in a
single supply environment where reading negative
temperatures is required. Because the LM61's
quiescent current is less than 125 μA, self-heating is
limited to a very low 0.2°C in still air. Shutdown
capability for the LM61 is intrinsic because its
inherent low power consumption allows it to be
powered directly from the output of many logic gates.
HVAC
Disk Drives
Appliances
Table 1. Key Specifications
VALUE
±2.0 or ±3.0
±4.0
UNIT
Accuracy at 25°C
°C (max)
°C (max)
°C (max)
mV/°C
Accuracy for −30°C to +100°C
Accuracy for −25°C to +85°C
Temperature Slope
±3.0
+10
Power Supply Voltage Range
Current Drain @ 25°C
Nonlinearity
+2.7 to +10
125
V
µA (max)
°C (max)
Ω (max)
±0.8
Output Impedance
800
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated
LM61
SNIS121I –JUNE 1999–REVISED FEBRUARY 2013
www.ti.com
TYPICAL APPLICATION
A. VO = (+10 mV/°C × T °C) + 600 mV
Figure 1. Full-Range Centigrade Temperature Sensor (−30°C to +100°C) Operating from
a Single Li-Ion Battery Cell
Table 2. Temperature and Typical VO Values of Figure 1
TEMPERATURE (T)
+100°C
+85°C
TYPICAL VO
+1600 mV
+1450 mV
+850 mV
+25°C
0°C
+600 mV
−25°C
+350 mV
−30°C
+300 mV
CONNECTION DIAGRAMS
Figure 2. SOT-23 (Top View)
See Package Number DBZ0003A
Figure 3. TO-92 (Bottom View)
See Package Number LP0003A
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
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SNIS121I –JUNE 1999–REVISED FEBRUARY 2013
Absolute Maximum Ratings(1)
Supply Voltage
+12V to −0.2V
(+VS + 0.6V) to −0.6V
10 mA
Output Voltage
Output Current
Input Current at any pin(2)
5 mA
Storage Temperature
−65°C to +150°C
+125°C
Maximum Junction Temperature (TJMAX
)
ESD Susceptibility(3)
Human Body Model
2500V
250V
Machine Model
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see
the Electrical Characteristics . The guaranteed specifications apply only for the test conditions listed. Some performance characteristics
may degrade when the device is not operated under the listed test conditions.
(2) When the input voltage (VI) at any pin exceeds power supplies (VI < GND or VI > +VS), the current at that pin should be limited to 5 mA.
(3) The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF
capacitor discharged directly into each pin.
Operating Ratings(1)
Specified Temperature Range:
TMIN ≤ TA ≤ TMAX
LM61C
−30°C ≤ TA ≤ +100°C
−25°C ≤ TA ≤ +85°C
+2.7V to +10V
LM61B
Supply Voltage Range (+VS)
(2)
Thermal Resistance, θJA
SOT-23
TO-92
450°C/W
180°C/W
Soldering process must comply with Reflow Temperature Profile specifications. Refer to http://www.ti.com/packaging.(3)
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see
the Electrical Characteristics . The guaranteed specifications apply only for the test conditions listed. Some performance characteristics
may degrade when the device is not operated under the listed test conditions.
(2) The junction to ambient thermal resistance (θJA) is specified without a heat sink in still air.
(3) Reflow temperature profiles are different for lead-free and non-lead-free packages.
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Electrical Characteristics
Unless otherwise noted, these specifications apply for +VS = +3.0 VDC. Boldface limits apply for TA = TJ = TMIN to TMAX ; all
other limits TA = TJ = 25°C.
LM61B
LIMITS(2)
±2.0
LM61C
LIMITS(2)
±3.0
UNITS
(LIMIT)
PARAMETER
TEST CONDITIONS
TYPICAL(1)
(3)
Accuracy
°C (max)
°C (max)
mV
±3.0
±4.0
Output Voltage at 0°C
+600
+10
(4)
Nonlinearity
±0.6
+9.7
±0.8
+9.6
°C (max)
mV/°C (min)
mV/°C (max)
Sensor Gain (Average Slope)
+10.3
+10.4
Output Impedance
+3.0V ≤ +VS ≤ +10V
−30°C ≤ TA ≤ +85°C, +VS= +2.7V
+85°C ≤ TA ≤ +100°C, +VS= +2.7V
0.8
2.3
5
0.8
2.3
5
kΩ (max)
kΩ (max)
kΩ (max)
(5)
Line Regulation
+3.0V ≤ +VS ≤ +10V
+2.7V ≤ +VS ≤ +3.3V
+2.7V ≤ +VS ≤ +10V
±0.7
±5.7
125
155
±0.7
±5.7
125
155
mV/V (max)
mV (max)
µA (max)
µA (max)
μA
Quiescent Current
82
Change of Quiescent Current
+2.7V ≤ +VS ≤ +10V
±5
0.2
Temperature Coefficient of
Quiescent Current
µA/°C
°C
(6)
Long Term Stability
TJ=TMAX=+100°C, for 1000 hours
±0.2
(1) Typicals are at TJ = TA = 25°C and represent most likely parametric norm.
(2) Limits are guaranteed to TI's AOQL (Average Outgoing Quality Level).
(3) Accuracy is defined as the error between the output voltage and +10 mV/°C times the device's case temperature plus 600 mV, at
specified conditions of voltage, current, and temperature (expressed in °C).
(4) Nonlinearity is defined as the deviation of the output-voltage-versus-temperature curve from the best-fit straight line, over the device's
rated temperature range.
(5) Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output due to heating
effects can be computed by multiplying the internal dissipation by the thermal resistance.
(6) For best long-term stability, any precision circuit will give best results if the unit is aged at a warm temperature, and/or temperature
cycled for at least 46 hours before long-term life test begins. This is especially true when a small (Surface-Mount) part is wave-soldered;
allow time for stress relaxation to occur. The majority of the drift will occur in the first 1000 hours at elevated temperatures. The drift after
1000 hours will not continue at the first 1000 hour rate.
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SNIS121I –JUNE 1999–REVISED FEBRUARY 2013
Typical Performance Characteristics
The LM61 in the SOT-23 package mounted to a printed circuit board as shown in Figure 14 was used to generate the
following thermal curves.
Thermal Resistance
Junction to Air
Thermal Time Constant
Figure 4.
Figure 5.
Thermal Response
in Stirred Oil Bath
with Heat Sink
Thermal Response in
Still Air with Heat Sink
Figure 6.
Figure 7.
Thermal Response in Still
Air without a Heat Sink
Quiescent Current
vs. Temperature
Figure 8.
Figure 9.
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Typical Performance Characteristics (continued)
The LM61 in the SOT-23 package mounted to a printed circuit board as shown in Figure 14 was used to generate the
following thermal curves.
Accuracy
vs
Temperature
Noise Voltage
Figure 10.
Figure 11.
Supply Voltage
vs Supply Current
Start-Up Response
Figure 12.
Figure 13.
A. ½″ Square Printed Circuit Board with 2 oz. Copper Foil or Similar.
Figure 14. Printed Circuit Board Used for Heat Sink to Generate All Curves
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LM61
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SNIS121I –JUNE 1999–REVISED FEBRUARY 2013
APPLICATION INFORMATION
Mounting
The LM61 can be applied easily in the same way as other integrated-circuit temperature sensors. It can be glued
or cemented to a surface. The temperature that the LM61 is sensing will be within about +0.2°C of the surface
temperature that LM61's leads are attached to.
This presumes that the ambient air temperature is almost the same as the surface temperature; if the air
temperature were much higher or lower than the surface temperature, the actual temperature measured would
be at an intermediate temperature between the surface temperature and the air temperature.
To ensure good thermal conductivity the backside of the LM61 die is directly attached to the GND pin. The lands
and traces to the LM61 will, of course, be part of the printed circuit board, which is the object whose temperature
is being measured.
Alternatively, the LM61 can be mounted inside a sealed-end metal tube, and can then be dipped into a bath or
screwed into a threaded hole in a tank. As with any IC, the LM61 and accompanying wiring and circuits must be
kept insulated and dry, to avoid leakage and corrosion. This is especially true if the circuit may operate at cold
temperatures where condensation can occur. Printed-circuit coatings and varnishes such as Humiseal and epoxy
paints or dips are often used to ensure that moisture cannot corrode the LM61 or its connections.
The thermal resistance junction to ambient (θJA) is the parameter used to calculate the rise of a device junction
temperature due to its power dissipation. For the LM61, Equation 1 is used to calculate the rise in the die
temperature.
TJ = TA + θJA [(+VS IQ) + (+VS − VO) IL]
where
•
•
IQ is the quiescent current
ILis the load current on the output
(1)
Since the LM61's junction temperature is the actual temperature being measured care should be taken to
minimize the load current that the LM61 is required to drive.
Table 3 summarizes the rise in die temperature of the LM61 without any loading with a 3.3V supply, and the
thermal resistance for different conditions.
Table 3. Temperature Rise of LM61 Due to Self-Heating and Thermal Resistance (θJA
)
SOT-23(1)
SOT-23(2)
TO-92(1)
TO-92(3)
NO HEAT SINK
SMALL HEAT FIN
NO HEAT SINK
SMALL HEAT FIN
θJA
TJ − TA
θJA
TJ − TA
θJA
TJ − TA
θJA
TJ − TA
(°C/W)
(°C)
(°C/W)
(°C)
(°C/W)
(°C)
0.09
0.05
(°C/W)
(°C)
Still air
450
0.26
260
180
0.13
0.09
180
140
70
0.07
0.03
Moving air
90
(1) Part soldered to 30 gauge wire.
(2) Heat sink used is ½″ square printed circuit board with 2 oz. foil with part attached as shown in Figure 14.
(3) Part glued and leads soldered to 1" square of 1/16" printed circuit board with 2oz. foil or similar.
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Capacitive Loads
The LM61 handles capacitive loading well. Without any special precautions, the LM61 can drive any capacitive
load as shown in Figure 15. Over the specified temperature range the LM61 has a maximum output impedance
of 5 kΩ. In an extremely noisy environment it may be necessary to add some filtering to minimize noise pickup. It
is recommended that 0.1 μF be added from +VS to GND to bypass the power supply voltage, as shown in
Figure 16. In a noisy environment it may be necessary to add a capacitor from the output to ground. A 1 μF
output capacitor with the 5 kΩ maximum output impedance will form a 32 Hz lowpass filter. Since the thermal
time constant of the LM61 is much slower than the 5 ms time constant formed by the RC, the overall response
time of the LM61 will not be significantly affected. For much larger capacitors this additional time lag will increase
the overall response time of the LM61.
Figure 15. LM61 No Decoupling Required for Capacitive Load
Figure 16. LM61 with Filter for Noisy Environment
Figure 17. Simplified Schematic
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SNIS121I –JUNE 1999–REVISED FEBRUARY 2013
Applications Circuits
V
TEMP
V+
R3
V
V
T1
R4
T2
R1
V
T
(Low = overtemp alarm)
4.1V
V
OUT
+
V
OUT
U1
LM4040
U3
0.1 mF
-
R2
LM7211
(4.1)R2
V
V
=
=
T1
R2 + R1||R3
V+
LM61
U2
V
Temp
(4.1)R2||R3
R1 + R2||R3
T2
Figure 18. Centigrade Thermostat
Figure 19. Conserving Power Dissipation with Shutdown
Recommended Solder Pads for SOT-23 Package
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REVISION HISTORY
Changes from Revision H (February 2013) to Revision I
Page
•
Changed layout of National Data Sheet to TI format ............................................................................................................ 9
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PACKAGE OPTION ADDENDUM
www.ti.com
1-Nov-2013
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
1000
1000
(1)
(2)
(6)
(3)
(4/5)
LM61BIM3
NRND
ACTIVE
SOT-23
SOT-23
DBZ
3
3
TBD
Call TI
CU SN
Call TI
-25 to 85
-25 to 85
T1B
T1B
LM61BIM3/NOPB
DBZ
Green (RoHS
& no Sb/Br)
Level-1-260C-UNLIM
LM61BIM3X/NOPB
LM61BIZ/LFT3
ACTIVE
ACTIVE
ACTIVE
SOT-23
TO-92
TO-92
DBZ
LP
3
3
3
3000
2000
1800
Green (RoHS
& no Sb/Br)
CU SN
Level-1-260C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
-25 to 85
T1B
Green (RoHS
& no Sb/Br)
SN | CU SN
SN | CU SN
LM61
BIZ
LM61BIZ/NOPB
LP
Green (RoHS
& no Sb/Br)
-25 to 85
LM61
BIZ
LM61CIM3
NRND
SOT-23
SOT-23
DBZ
DBZ
3
3
1000
1000
TBD
Call TI
CU SN
Call TI
-30 to 100
-30 to 100
T1C
T1C
LM61CIM3/NOPB
ACTIVE
Green (RoHS
& no Sb/Br)
Level-1-260C-UNLIM
LM61CIM3X
NRND
SOT-23
SOT-23
DBZ
DBZ
3
3
3000
3000
TBD
Call TI
CU SN
Call TI
-30 to 100
-30 to 100
T1C
T1C
LM61CIM3X/NOPB
ACTIVE
Green (RoHS
& no Sb/Br)
Level-1-260C-UNLIM
LM61CIZ/LFT2
LM61CIZ/NOPB
ACTIVE
ACTIVE
TO-92
TO-92
LP
LP
3
3
2000
1800
Green (RoHS
& no Sb/Br)
SN | CU SN
SN | CU SN
N / A for Pkg Type
N / A for Pkg Type
LM61
CIZ
Green (RoHS
& no Sb/Br)
-30 to 100
LM61
CIZ
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
1-Nov-2013
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
23-Sep-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
LM61BIM3
LM61BIM3/NOPB
LM61BIM3X/NOPB
LM61CIM3
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
3
3
3
3
3
3
3
1000
1000
3000
1000
1000
3000
3000
178.0
178.0
178.0
178.0
178.0
178.0
178.0
8.4
8.4
8.4
8.4
8.4
8.4
8.4
3.3
3.3
3.3
3.3
3.3
3.3
3.3
2.9
2.9
2.9
2.9
2.9
2.9
2.9
1.22
1.22
1.22
1.22
1.22
1.22
1.22
4.0
4.0
4.0
4.0
4.0
4.0
4.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
Q3
Q3
Q3
Q3
Q3
Q3
Q3
LM61CIM3/NOPB
LM61CIM3X
LM61CIM3X/NOPB
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
23-Sep-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
LM61BIM3
LM61BIM3/NOPB
LM61BIM3X/NOPB
LM61CIM3
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
DBZ
3
3
3
3
3
3
3
1000
1000
3000
1000
1000
3000
3000
210.0
210.0
210.0
210.0
210.0
210.0
210.0
185.0
185.0
185.0
185.0
185.0
185.0
185.0
35.0
35.0
35.0
35.0
35.0
35.0
35.0
LM61CIM3/NOPB
LM61CIM3X
LM61CIM3X/NOPB
Pack Materials-Page 2
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相关型号:
LM61CIM3X/NOPB
Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.6V, 4Cel, RECTANGULAR, SURFACE MOUNT, PLASTIC, SOT-23, 3 PIN
NSC
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