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LM61 Datasheet Preview

LM61 Datasheet

SOT-23 or TO-92 Temperature Sensor

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LM61
SNIS121J – JUNE 1999 – REVISED NOVEMBER 2016
LM61 2.7-V, SOT-23 or TO-92 Temperature Sensor
1 Features
1 Calibrated Linear Scale Factor of 10 mV/°C
• Rated for Full Temperature Range (–30° to
100°C)
• Suitable for Remote Applications
• UL Recognized Component
• ±2°C or ±3°C Accuracy at 25°C (Maximum)
• ±3°C Accuracy for –25°C to 85°C (Maximum)
• ±4°C Accuracy for –30°C to 100°C (Maximum)
• 10 mV/°C Temperature Slope (Maximum)
• 2.7-V to 10-V Power Supply Voltage Range
• 125-µA Current Drain at 25°C (Maximum)
• ±0.8°C Nonlinearity (Maximum)
• 800-Ω Output Impedance (Maximum)
2 Applications
• Cellular Phones
• Computers
• Power Supply Modules
• Battery Management
• FAX Machines
• Printers
• HVAC
• Disk Drives
• Appliances
Typical Application
3 Description
The LM61 device 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 output voltage of the LM61 is
linearly proportional to 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°C at room temperature and
±3°C over the full –25°C to 85°C temperature range.
The linear output of the LM61, 600-mV offset, and
factory calibration simplify external circuitry required
in a single supply environment where reading
negative temperatures is required. Because the
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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM61
SOT-23 (3)
TO-92 (3)
1.30 mm × 2.92 mm
4.30 mm × 4.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Key Specifications
Accuracy at 25°C
Accuracy for –25°C to 85°C
Accuracy for –30°C to 100°C
Temperature slope
Power supply voltage
Current drain at 25°C
Nonlinearity
Output impedance
VALUE
±2°C or ±3°C
±3°C
±4°C
10 mV/°C
2.7 V to 10 V
125 µA
±0.8°C
800 Ω
VO = (10 mV/°C × T°C) + 600 mV
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LM61 Datasheet Preview

LM61 Datasheet

SOT-23 or TO-92 Temperature Sensor

No Preview Available !

LM61
SNIS121J – JUNE 1999 – REVISED NOVEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings.............................................................. 3
6.3 Recommended Operating Conditions....................... 3
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 4
6.6 Typical Characteristics .............................................. 5
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 7
7.4 Device Functional Modes.......................................... 7
8 Application and Implementation .......................... 8
8.1 Application Information.............................................. 8
8.2 Typical Applications .................................................. 8
9 Power Supply Recommendations...................... 11
10 Layout................................................................... 11
10.1 Layout Guidelines ................................................. 11
10.2 Layout Examples................................................... 11
10.3 Thermal Considerations ........................................ 12
11 Device and Documentation Support ................. 14
11.1 Related Documentation......................................... 14
11.2 Receiving Notification of Documentation Updates 14
11.3 Community Resources.......................................... 14
11.4 Trademarks ........................................................... 14
11.5 Electrostatic Discharge Caution ............................ 14
11.6 Glossary ................................................................ 14
12 Mechanical, Packaging, and Orderable
Information ........................................................... 14
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision I (February 2013) to Revision J
Page
• Added Device Information table, Device Comparison Table, Pin Configuration and Functions section, Specifications
section, ESD Ratings table, Detailed Description section, Application and Implementation section, Power Supply
Recommendations section, Layout section, Device and Documentation Support section, and Mechanical,
Packaging, and Orderable Information section ...................................................................................................................... 1
• Added Thermal Information table ........................................................................................................................................... 4
• Changed RθJA values for DBZ (SOT-23) From: 450°C/W To: 286.3°C/W and for LP (TO-92) From: 180°C/W To:
162.2°C/W .............................................................................................................................................................................. 4
Changes from Revision H (February 2013) to Revision I
Page
• Changed layout of National Semiconductor Data Sheet to TI format .................................................................................... 1
2
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Product Folder Links: LM61
Copyright © 1999–2016, Texas Instruments Incorporated


Part Number LM61
Description SOT-23 or TO-92 Temperature Sensor
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