Datasheet > LM56

LM56

更新时间： 2024-11-23 11:12:31

品牌	Logo	应用领域
德州仪器 - TI		开关风扇
页数	文件大小	规格书
25页	967K
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具有风扇控制功能的 3°C 双路输出电阻可编程温度开关

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LM56 数据手册

LM56

www.ti.com

SNIS120G –APRIL 2000–REVISED FEBRUARY 2013

LM56 Dual Output Low Power Thermostat

Check for Samples: LM56

FEATURES

DESCRIPTION

The LM56 is a precision low power thermostat. Two

stable temperature trip points (V_T1and V_T2) are

generated by dividing down the LM56 1.250V

bandgap voltage reference using 3 external resistors.

The LM56 has two digital outputs. 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 temperature

exceeds T2 and goes HIGH when the temperature

goes below (T2–T_HYST). T_HYSTis an internally set 5°C

typical hysteresis.

•

Digital Outputs Support TTL Logic Levels

Internal Temperature Sensor

2 Internal Comparators with Hysteresis

Internal Voltage Reference

Available in 8-pin SOIC and VSSOP Packages

APPLICATIONS

•

Microprocessor Thermal Management

Appliances

The LM56 is available in an 8-lead VSSOP surface

mount package and an 8-lead SOIC.

Portable Battery Powered 3.0V or 5V Systems

Fan Control

Industrial Process Control

HVAC Systems

Remote Temperature Sensing

Electronic System Protection

Table 1. Key Specifications

VALUE

2.7V–10

230

UNIT

Power Supply Voltage

Power Supply Current

V_REF

μA (max)

V ±1% (max)

°C

1.250

Hysteresis Temperature

(+6.20 mV/°C x T) +

395 mV

Internal Temperature Sensor Output Voltage

Table 2. Temperature Trip Point Accuracy

LM56BIM

±2°C (max)

±3°C (max)

LM56CIM

+25°C

±3°C (max)

±4°C (max)

+25°C to +85°C

−40°C to +125°C

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...25

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LM56 替代型号

型号	品牌	替代类型	描述	数据表
LM26LV	TI	功能相似	The LM26LV/LM26LV-Q1 is a low-voltage, precision, dual-output, low-power temperature switc
LM26	TI	功能相似	LM26 SOT-23, /-3C Accurate, Factory Preset Thermostat
TMP300	TI	功能相似	1.8V, Resistor-Programmable TEMPERATURE SWITCH and ANALOG OUT TEMPERATURE SENSOR in SC70

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