LM61CIZ/NOPB National Semiconductor, LM61CIZ/NOPB Datasheet

IC, TEMPERATURE SENSOR, ± 3°C, TO-92-3

LM61CIZ/NOPB

Manufacturer Part Number
LM61CIZ/NOPB
Description
IC, TEMPERATURE SENSOR, ± 3°C, TO-92-3
Manufacturer
National Semiconductor
Datasheet

Specifications of LM61CIZ/NOPB

Ic Output Type
Voltage
Sensing Accuracy Range
± 3°C
Supply Current
82µA
Supply Voltage Range
2.7V To 10V
Sensor Case Style
TO-92
No. Of Pins
3
Msl
MSL 1 - Unlimited
Accuracy %
3°C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM61CIZ/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
LM61CIZ/NOPB
Manufacturer:
NS
Quantity:
15 409
© 2010 National Semiconductor Corporation
2.7V, SOT-23 or TO-92 Temperature Sensor
General Description
The LM61 is a precision integrated-circuit 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 volt-
age is linearly proportional to Celsius (Centigrade) tempera-
ture (+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 accu-
racies of ±2.0°C at room temperature and ±3°C over the full
−25°C to +85°C temperature range.
The LM61's linear output, +600 mV offset, and factory cali-
bration simplify external circuitry required in a single supply
environment where reading negative temperatures is re-
quired. 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 in-
herent low power consumption allows it to be powered directly
from the output of many logic gates.
Features
Typical Application
V
O
Calibrated linear scale factor of +10 mV/°C
Rated for full −30° to +100°C range
Suitable for remote applications
UL Recognized Component
= (+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
12897
Temperature (T)
+100°C
+85°C
+25°C
−25°C
−30°C
0°C
LM61
Applications
Key Specifications
■ 
■ 
■ 
■ 
■ 
■ 
■ 
■ 
Cellular Phones
Computers
Power Supply Modules
Battery Management
FAX Machines
Printers
HVAC
Disk Drives
Appliances
Accuracy at 25°C
Accuracy for −30°C to +100°C
Accuracy for −25°C to +85°C
Temperature Slope
Power Supply Voltage Range
Current Drain @ 25°C
Nonlinearity
Output Impedance
Typical V
+1600 mV
+1450 mV
+850 mV
+600 mV
+350 mV
+300 mV
1289702
O
February 9, 2010
±2.0 or ±3.0°C
+2.7V to +10V
125 µA (max)
±4.0°C (max)
±3.0°C (max)
±0.8°C (max)
www.national.com
800 Ω (max)
+10 mV/°C
(max)

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LM61CIZ/NOPB Summary of contents

Page 1

... Suitable for remote applications ■ UL Recognized Component Typical Application V = (+10 mV/°C × T °C) + 600 mV O FIGURE 1. Full-Range Centigrade Temperature Sensor (−30°C to +100°C) © 2010 National Semiconductor Corporation LM61 Applications ■ Cellular Phones ■ Computers ■ Power Supply Modules ■ ...

Page 2

... Units on Tape and Reel 1000 Units on Tape and Reel 3000 Units on Tape and Reel Bulk Bulk 2 TO-92 1289725 See NS Package Number Z03A Specified Package Temperature Type Range ± 3 −25°C to +85°C SOT-23 ± 4 −30°C to +100°C ± 3 −25°C to +85°C TO-92 ± ...

Page 3

... A Note 7: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level). Note 8: 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). Note 9: 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 ...

Page 4

... 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. ...

Page 5

... Accuracy vs Temperature 1289710 Supply Voltage vs Supply Current 1289712 FIGURE 2. Printed Circuit Board Used for Heat Sink to Generate All Curves. ½ Square Printed Circuit Board with 2 oz. Copper Foil or Similar. Noise Voltage Start-Up Response 1289714 5 1289711 1289722 www.national.com ...

Page 6

... LM61 or its connections. The thermal resistance junction to ambient (θ rameter used to calculate the rise of a device junction tem- perature due to its power dissipation. For the LM61 the equation used to calculate the rise in the die temperature is as follows ...

Page 7

FIGURE 6. Simplified Schematic 7 1289717 www.national.com ...

Page 8

Applications Circuits FIGURE 8. Conserving Power Dissipation with Shutdown 4.0 Recommended Solder Pads for SOT-23 Package www.national.com FIGURE 7. Centigrade Thermostat 1289720 8 1289718 1289719 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted SOT-23 Molded Small Outline Transistor Package (M3) Order Number LM61BIM3, LM61BIM3X, LM61CIM3 or LM61CIM3X NS Package Number mf03a 9 www.national.com ...

Page 10

TO-92 Plastic Package (Z) Order Number LM61BIZ or LM61CIZ NS Package Number Z03A 10 ...

Page 11

Notes 11 www.national.com ...

Page 12

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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