LM26TPA

V+ = 2.7V

to 5.5V

GND

HYST

OS

HYST

REF

TEMP

SENSOR

+

-

HYST=GND for 10°C Hysteresis

HYST = V+ for 2°C Hysteresis

Temp. of

Leads

OS

Product

Folder

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Buy

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LM26

SNIS115S – MAY 2001 – REVISED SEPTEMBER 2015

LM26 SOT-23, ±3°C Accurate, Factory-Preset Thermostat

1 Features

3 Description

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

1

•

Internal Comparator With Pin Programmable 2°C

power thermostat comprised of an internal reference,

or 10°C Hysteresis

DAC, temperature sensor and comparator. Utilizing

•

No External Components Required

factory programming, it can be manufactured with

•

Open-Drain or Push-Pull Digital Output; Supports

different trip points as well as different digital output

CMOS Logic Levels

factory to any temperature in the range of

−55°C to

•

110°C in 1°C increments. The LM26 has one digital

Pin

output (OS/OS/US/US), one digital input (HYST) and

•

Testing

can be preset as either open-drain or push-pull. In

addition, it can be factory programmed to be active

•

Internal Voltage Reference and DAC for Trip-Point

HIGH or LOW. The digital output can be factory

Setting

programmed

to

indicate

an

over

temperature

•

Currently Available in 5-pin SOT-23 Plastic

shutdown event (OS or OS) or an under temperature

Package

shutdown event (US or US). When preset as an

•

Excellent Power Supply Noise Rejection

overtemperature shutdown (OS) it will go LOW to

indicate that the die temperature is over the internally

•

UL Recognized Component

•

Key Specifications

–

Power Supply Voltage 2.7 V to 5.5 V

as an undertemperature shutdown (US) it will go

–

Power Supply Current

and go LOW when the temperature is above

40

μA (Maximum) 16 μA (Typical)

–

Hysteresis Temperature 2°C or 10°C (Typical)

to 2°C or 10°C and is controlled by the state of the

2 Applications

that is proportional to temperature and has a

−10.82

mV/°C output slope.

•

Microprocessor Thermal Management

•

Appliances

Available parts are detailed in the Device Comparison

Table. For other part options, contact a Texas

•

Portable Battery Powered Systems

Instruments Distributor or Sales Representative for

•

Fan Control

information on minimum order qualification. The

•

Industrial Process Control

LM26 is currently available in a 5-lead SOT-23

package.

•

HVAC Systems

•

Remote Temperature Sensing

Device Information(1)

•

Electronic System Protection

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

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.