Datasheet > M08A

M08A

更新时间： 2022-11-26 16:06:30

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
5页	66K
描述
Dual Output Internally Preset Thermostat

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M08A 数据手册

April 2000

LM66

Dual Output Internally Preset Thermostat

n Electronic System Protection

General Description

The LM66 is a precision low power thermostat. Two stable

Features

n Digital outputs support TTL logic levels

n Internal temperature sensor

n 2 internal comparators with hysteresis

n Internal voltage reference

n Currently available in 8-pin SO plastic package

temperature trip points (V_T1and V_T2) are generated by divid-

ing down the LM66 1.250V bandgap voltage reference using

a resistors divider network. The LM66 has two digital out-

puts. OUT1 goes LOW when the temperature exceeds T1

and goes HIGH when the the temperature goes below

(T1–T_HYST). Similarly, OUT2 goes LOW when the tempera-

ture exceeds T2 and goes HIGH when the temperature goes

below (T2–T_HYST). T_HYSTis an internally set 5˚C typical hys-

teresis.

Key Specifications

The LM66 is currently available in an 8-lead small outline

package.

n Power Supply Voltage

n Power Supply Current

n V_REF

2.7V to 10V

250 µA (max)

1.250V 1.4% (max)

Applications

n Microprocessor Thermal Management

n Appliances

n Hysteresis Temperature

n Internal Temperature Sensor

5˚C

Output Voltage

n Temperature Trip Point Accuracy

n T1 set point

(+6.20 mV/˚C x T) +400 mV

n Portable Battery Powered 3.0V or 5V Systems

n Fan Control

n Industrial Process Control

n HVAC Systems

3˚C (max)

+73˚C

n T2 set point

+82˚C

n Remote Temperature Sensing

Simplified Block Diagram and

Connection Diagram

Ordering Information

TABLE 1.

Order Number

LM66CIM-

RLSKB

LM66CIMX-

RLSKB

NS Tackage

Number

M08A

Transport Media

Bulk Rail

2500 Units Tape

& Reel

DS100854-1

Typical Application

DS100854-2

DS100854-3

DS100854

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