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Factory-Preset Thermostat. LM26 Datasheet

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Factory-Preset Thermostat. LM26 Datasheet
















LM26 Thermostat. Datasheet pdf. Equivalent













Part

LM26

Description

Factory-Preset Thermostat



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM26 SNIS115S – MAY 2001 REVISED SEPTEMBER 2015 LM26 SOT-23, ±3°C Accurate, Factory-Preset Thermos tat 1 Features •1 Internal Comparato r With Pin Programmable 2°C or 10°C H ysteresis • No External Components Re quired • Open-Drain or Push-Pull Digi tal Output; Supports CMOS Logic .
Manufacture

Texas Instruments

Datasheet
Download LM26 Datasheet


Texas Instruments LM26

LM26; Levels • Internal Temperature Sensor W ith VTEMP Output Pin • VTEMP Output A llows After-Assembly System Testing • Internal Voltage Reference and DAC for Trip-Point Setting • Currently Avail able in 5-pin SOT-23 Plastic Package Excellent Power Supply Noise Rejectio n • UL Recognized Component • Key S pecifications – Power Supply Voltage 2.7 V to 5.5 V – Power Supply Curr.


Texas Instruments LM26

ent 40 μA (Maximum) 16 μA (Typical) Hysteresis Temperature 2°C or 10°C (Typical) 2 Applications • Microproce ssor Thermal Management • Appliances • Portable Battery Powered Systems Fan Control • Industrial Process Co ntrol • HVAC Systems • Remote Tempe rature Sensing • Electronic System Pr otection 3 Description The LM26 is a p recision, single digital-output, lowpowe.


Texas Instruments LM26

r thermostat comprised of an internal re ference, DAC, temperature sensor and co mparator. Utilizing factory programming , it can be manufactured with different trip points as well as different digit al output functionality. The trip point (TOS) can be preset at the factory to any temperature in the range of −55° C to 110°C in 1°C increments. The LM2 6 has one digital outpu.





Part

LM26

Description

Factory-Preset Thermostat



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM26 SNIS115S – MAY 2001 REVISED SEPTEMBER 2015 LM26 SOT-23, ±3°C Accurate, Factory-Preset Thermos tat 1 Features •1 Internal Comparato r With Pin Programmable 2°C or 10°C H ysteresis • No External Components Re quired • Open-Drain or Push-Pull Digi tal Output; Supports CMOS Logic .
Manufacture

Texas Instruments

Datasheet
Download LM26 Datasheet




 LM26
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LM26
SNIS115S – MAY 2001 – REVISED SEPTEMBER 2015
LM26 SOT-23, ±3°C Accurate, Factory-Preset Thermostat
1 Features
1 Internal Comparator With Pin Programmable 2°C
or 10°C Hysteresis
• No External Components Required
• Open-Drain or Push-Pull Digital Output; Supports
CMOS Logic Levels
• Internal Temperature Sensor With VTEMP Output
Pin
• VTEMP Output Allows After-Assembly System
Testing
• Internal Voltage Reference and DAC for Trip-Point
Setting
• Currently Available in 5-pin SOT-23 Plastic
Package
• Excellent Power Supply Noise Rejection
• UL Recognized Component
• Key Specifications
– Power Supply Voltage 2.7 V to 5.5 V
– Power Supply Current
40 μA (Maximum) 16 μA (Typical)
– Hysteresis Temperature 2°C or 10°C (Typical)
2 Applications
• Microprocessor Thermal Management
• Appliances
• Portable Battery Powered Systems
• Fan Control
• Industrial Process Control
• HVAC Systems
• Remote Temperature Sensing
• Electronic System Protection
3 Description
The LM26 is a precision, single digital-output, low-
power thermostat comprised of an internal reference,
DAC, temperature sensor and comparator. Utilizing
factory programming, it can be manufactured with
different trip points as well as different digital output
functionality. The trip point (TOS) can be preset at the
factory to any temperature in the range of 55°C to
110°C in 1°C increments. The LM26 has one digital
output (OS/OS/US/US), one digital input (HYST) and
one analog output (VTEMP). The digital output stage
can be preset as either open-drain or push-pull. In
addition, it can be factory programmed to be active
HIGH or LOW. The digital output can be factory
programmed to indicate an over temperature
shutdown event (OS or OS) or an under temperature
shutdown event (US or US). When preset as an
overtemperature shutdown (OS) it will go LOW to
indicate that the die temperature is over the internally
preset TOS and go HIGH when the temperature goes
below (TOS–THYST). Similarly, when preprogrammed
as an undertemperature shutdown (US) it will go
HIGH to indicate that the temperature is below TUS
and go LOW when the temperature is above
(TUS+THYST). The typical hysteresis, THYST, can be set
to 2°C or 10°C and is controlled by the state of the
HYST pin. A VTEMP analog output provides a voltage
that is proportional to temperature and has a 10.82
mV/°C output slope.
Available parts are detailed in the Device Comparison
Table. For other part options, contact a Texas
Instruments Distributor or Sales Representative for
information on minimum order qualification. The
LM26 is currently available in a 5-lead SOT-23
package.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
LM26
SOT-23 (5)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
LM26CIM5-TPA Simplified Block Diagram and Connection Diagram
HYST
GND
VTEMP
REF
TEMP
SENSOR
HYST
+
-
LM26TPA
TOS
OS
TOS - THYST
OS
V+ = 2.7V
to 5.5V
Temp. of
Leads
HYST=GND for 10°C Hysteresis
HYST = V+ for 2°C Hysteresis
VTEMP = (-3.479 x 10-6 x (T-30)2) + (-1.082 x 10-2 x (T-30)) + 1.8015V
The LM26CIM5-TPA has a fixed trip point of 85°C. For other trip point and output function availability, please see the
Device Comparison Table or contact Texas Instruments.
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.




 LM26
LM26
SNIS115S – MAY 2001 – REVISED SEPTEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics .......................................... 5
7.6 Typical Characteristics .............................................. 6
8 Detailed Description .............................................. 7
8.1 Overview ................................................................... 7
8.2 Functional Block Diagrams ....................................... 7
8.3 Feature Description................................................... 8
8.4 Device Functional Modes.......................................... 9
9 Application and Implementation ........................ 10
9.1 Application Information............................................ 10
9.2 Typical Application .................................................. 10
9.3 System Examples ................................................... 11
10 Power Supply Recommendations ..................... 12
11 Layout................................................................... 12
11.1 Layout Guidelines ................................................. 12
11.2 Layout Example .................................................... 12
11.3 Thermal Considerations ........................................ 13
11.4 Part Number Template.......................................... 14
12 Device and Documentation Support ................. 15
12.1 Community Resources.......................................... 15
12.2 Trademarks ........................................................... 15
12.3 Electrostatic Discharge Caution ............................ 15
12.4 Glossary ................................................................ 15
13 Mechanical, Packaging, and Orderable
Information ........................................................... 15
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision R (February 2013) to Revision S
Page
• Added Pin Configuration and Functions section, Handling Rating table, Feature Description section, Device
Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout
section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information
section ................................................................................................................................................................................... 1
• Removed Part Number Template table ................................................................................................................................. 6
• Removed Temperature Trip Point Accuracy table ................................................................................................................ 6
Changes from Revision Q (September 2011) to Revision R
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 11
2
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Product Folder Links: LM26
Copyright © 2001–2015, Texas Instruments Incorporated




 LM26
www.ti.com
5 Device Comparison Table
LM26
SNIS115S – MAY 2001 – REVISED SEPTEMBER 2015
Order Number
Bulk Rail (1000 Units)
LM26CIM5-BPB
LM26CIM5-DPB
LM26CIM5-HHD
LM26CIM5-NPA
LM26CIM5-RPA
LM26CIM5-SHA
LM26CIM5-SPA
LM26CIM5-TPA
LM26CIM5-VHA
LM26CIM5-VPA
LM26CIM5-XHA
LM26CIM5-XPA
LM26CIM5-YHA
LM26CIM5-YPA
LM26CIM5-ZHA
Top Mark
Tape & Reel (3000 Units)
LM26CIM5X-BPB
TBPB
LM26CIM5X-DPB
TDPB
LM26CIM5X-HHD
THHD
LM26CIM5X-NPA
TNPA
LM26CIM5X-RPA
TRPA
LM26CIM5X-SHA
TSHA
LM26CIM5X-SPA
TSPA
LM26CIM5X-TPA
TTPA
LM26CIM5X-VHA
TVHA
LM26CIM5X-VPA
TVPA
LM26CIM5X-XHA
TXHA
LM26CIM5X-XPA
TXPA
LM26CIM5X-YHA
TYHA
LM26CIM5X-YPA
TYPA
LM26CIM5X-ZHA
TZHA
Trip Point Output Function
Setting
-45°C
-25°C
0°C
45°C
65°C
75°C
70°C
85°C
90°C
95°C
100°C
105°C
110°C
115°C
120°C
Active-Low, Open-Drain, US output
Active-Low, Open-Drain, US output
Active-High, Push-Pull, US output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Active-Low, Open-Drain, OS output
Copyright © 2001–2015, Texas Instruments Incorporated
Product Folder Links: LM26
Submit Documentation Feedback
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