Datasheet > MLX90247

MLX90247

更新时间： 2024-11-11 04:15:11

品牌	Logo	应用领域
迈来芯 - MELEXIS		/
页数	文件大小	规格书
9页	229K
描述
Discrete Infrared Thermopile Detectors

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数据手册

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MLX90247 数据手册

MLX90247 family

Discrete Infrared Thermopile Detectors

Features and Benefits

ꢀ

Solid state thermopile sensor

On-chip thermistor for ambient temperature compensation

High reliability and long-term stability

Low cost, small size

Ordering Information

Suffix

Package code

Type Description

Large aperture thermopile detector with on-chip PTC thermistor,

floating thermopile outputs. 3.5mm aperture

Part No

E (-40C to +85C)

MLX90247

SF(TO-39)

DSA

Notice: In case sensor is used in automotive applications, Melexis must be informed.

Applications

ꢀ

Automotive contactless temperature sensing.

IR thermometers

Gas analysis equipment

Occupancy detection

1. Functional Diagram

2. Description

At the heart of the MLX90247 thermopile sensors is a

silicon die with a central micromachined membrane

surrounded by a bulk silicon edge. The hot junctions of the

thermopile are positioned near the center of the membrane

and the cold junctions are located above the bulk silicon

edge. Infrared irradiation of the low thermal conductivity

membrane creates a temperature difference between the

membrane and the surrounding bulk silicon. The resulting

thermopile voltage is a function of the temperature

difference between the object and the sensor.

Measurement of the absolute temperature of the object is

possible by relating the thermopile signal to the

temperature of the sensor. The exact temperature of the

sensor is measured by a PTC thermistor integrated in the

bulk silicon edge. No supply voltage is needed for the

thermopile.

60 kOhm

Out IR+

40 uV/K

Out IR-

Rsense

Thermopile

24 kOhm

VSS

PTC

Socket

The sensor and thermistor can be used independently of

each other if desired, as the thermopile potential is floating.

3901090247

Rev. 004

Page 1 of 9

Data Sheet

Oct/07

12 3 4 5 6 7...9

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与MLX90247相关器件

型号	品牌	获取价格	描述	数据表
MLX90247_04	ETC	获取价格	Discrete Infrared Thermopile Detectors
MLX90247_07	ETC	获取价格	Discrete Infrared Thermopile Detectors
MLX90247B	ETC	获取价格	Thermopile w/On-Chip Thermistor
MLX90247C	ETC	获取价格	Thermopile w/NTC Thermistor
MLX90247DSA	ETC	获取价格	Discrete Infrared Thermopile Detectors
MLX90247DSE	ETC	获取价格	Discrete Infrared Thermopile Detectors
MLX90247DSG	ETC	获取价格	Discrete Infrared Thermopile Detectors
MLX90248	MELEXIS	获取价格	Micropower & Omnipolar Hall Switch
MLX90248_12	MELEXIS	获取价格	Micropower & Omnipolar Hall Switch
MLX90248_18	MELEXIS	获取价格	Micropower & Omnipolar Hall Switch