LM26NV

更新时间： 2024-11-15 12:20:11

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
12页	268K
描述
SOT-23, Â±3Â°C Accurate, Factory Preset Thermostat (LM26 without VTEMP output)

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中文翻译

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LM26NV 数据手册

August 5, 2008

LM26NV

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

(LM26 without V_TEMPoutput)

General Description

The LM26NV is a precision, single digital-output, low-power

Industrial Process Control

Portable Battery Powered Systems

■

Fan Control

thermostat comprised of an internal reference, DAC, temper-

ature 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_OS) can

be preset at the factory to any temperature in the range of

−55°C to +110°C in 1°C increments. The LM26NV has one

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

The digital output stage can be preset as either open-drain or

push-pull. In addition, it can be factory programmed to be ac-

tive HIGH or LOW. The digital output can be factory pro-

grammed 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 T_OSand go HIGH when the temperature

goes below (T_OS–T_HYST). Similarly, when preprogrammed as

an undertemperature shutdown (US) it will go HIGH to indi-

cate that the temperature is below T_USand go LOW when the

temperature is above (T_US+T_HYST). The typical hysteresis,

T_HYST, can be set to 2°C or 10°C and is controlled by the state

of the HYST pin.

HVAC Systems

Remote Temperature Sensing

Electronic System Protection

Features

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

■

Internal voltage reference and DAC for trip-point setting

Currently available in 5-pin SOT-23 plastic package

Excellent power supply noise rejection

Key Specifications

■ꢀPower Supply Voltage

■ꢀPower Supply Current

2.7V to 5.5V

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 LM26NV is currently available in a 5-

lead SOT-23 package.

40µA(max)

20µA(typ)

■ꢀHysteresis Temperature

2°C or 10°C(typ)

Temperature Trip Point Accuracy

Applications

Temperature Range

−55°C to +110°C

+120°C

LM26NV

Microprocessor Thermal Management

±3°C (max)

±4°C (max)

■

Appliances

■

Connection Diagram

30075102

300751

www.national.com

12 3 4 5 6 7...12

中文翻译

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与LM26NV相关器件

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LM2700_15	TI	获取价格	LM2700 600kHz/1.25MHz, 2.5A, Step-up PWM DC/DC Converter
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