LM26CIM5X-SPA National Semiconductor, LM26CIM5X-SPA Datasheet

LM26CIM5X-SPA

Manufacturer Part Number

LM26CIM5X-SPA

Description

Accurate, Factory Preset Thermostat

Manufacturer

National Semiconductor

Datasheet

1.LM26CIM5X-SPA.pdf (10 pages)

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LM26

SOT-23, ±3°C Accurate, Factory Preset Thermostat

General Description

The LM26 is a precision, single digital-output, low-power ther-

mostat 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 (T

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 (V

ther 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 shut-

down event (US or US). When preset as an overtemperature

shutdown (OS) it will go LOW to indicate that the die temper-

ature is over the internally preset T

temperature goes below (T

programmed as an undertemperature shutdown (US) it will

go HIGH to indicate that the temperature is below T

LOW when the temperature is above (T

hysteresis, T

by the state of the HYST pin. A V

a voltage that is proportional to temperature and has a

−10.82mV/°C output slope.

Available parts are detailed in the ordering information. For

other part options, contact a National Semiconductor Distrib-

utor or Sales Representative for information on minimum

order qualification. The LM26 is currently available in a 5-lead

SOT-23 package.

Applications

■

LM26CIM5-TPA Simplified Block Diagram and Connection Diagram

Microprocessor Thermal Management

Appliances

Portable Battery Powered Systems

TEMP

HYST

). The digital output stage can be preset as ei-

, can be set to 2°C or 10°C and is controlled

please see ordering information or contact National Semiconductor.

–T

TEMP

HYST

For other trip point and output function availability,

The LM26CIM5-TPA has a fixed trip point of 85°C.

). Similarly, when pre-

and go HIGH when the

analog output provides

101323

HYST

) can be preset

). The typical

and go

■

Features

■

Key Specifications

■

Fan Control

Industrial Process Control

HVAC Systems

Remote Temperature Sensing

Electronic System Protection

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 V

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

Power Supply Voltage

Power Supply Current

Hysteresis Temperature

TEMP

output allows after-assembly system testing

Temperature Range

Temperature Trip Point Accuracy

−55°C to +110°C

+120°C

±3°C (max)

±4°C (max)

LM26CIM

TEMP

10132301

2°C or 10°C(typ)

output pin

February 2007

www.national.com

2.7V to 5.5V

40µA(max)

20µA(typ)

Related parts for LM26CIM5X-SPA

LM26CIM5X-SPA Summary of contents

Page 1

... Available parts are detailed in the ordering information. For other part options, contact a National Semiconductor Distrib- utor or Sales Representative for information on minimum order qualification. The LM26 is currently available in a 5-lead SOT-23 package. ...

Page 2

... Section. Contact National Semiconductor for other set points and output options. Order Number Bulk Rail 3000 Units in Tape & LM26CIM5-HHD LM26CIM5X-HHD LM26CIM5-NPA LM26CIM5X-NPA LM26CIM5-PHA LM26CIM5X-PHA LM26CIM5-RPA LM26CIM5X-RPA LM26CIM5-SHA LM26CIM5X-SHA LM26CIM5-SPA LM26CIM5X-SPA LM26CIM5-TPA LM26CIM5X-TPA LM26CIM5-VHA LM26CIM5X-VHA LM26CIM5-VPA LM26CIM5X-VPA LM26CIM5-XHA LM26CIM5X-XHA LM26CIM5-XPA LM26CIM5X-XPA LM26CIM5-YHA LM26CIM5X-YHA LM26CIM5-YPA LM26CIM5X-YPA ...

Page 3

Absolute Maximum Ratings Input Voltage Input Current at any pin (Note 2) Package Input Current(Note 2) Package Dissipation 25°C A (Note 3) Soldering Information SOT23 Package Vapor Phase (60 seconds) Infrared (15 seconds) LM26 Electrical Characteristics The ...

Page 4

... LM26CIM5-TPA has T output. • the part number LM26CIM5-FPD has T output. Active-high open-drain and active-low push-pull options are available, please contact National Semiconductor for more information. www.national.com < GND or V > the current at that pin should be limited to 5mA. The 20mA ...

Page 5

Functional Description LM26 OPTIONS LM26-_ _A LM26-_ _C The LM26 can be factory programmed to have a trip point anywhere in the range of −55°C to +110°C. Applications Hints AFTER-ASSEMBLY PCB TESTING The LM26's V output allows after-assembly PCB testing ...

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LM26CIM5X-SPA National Semiconductor, LM26CIM5X-SPA Datasheet

LM26CIM5X-SPA

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