您好,欢迎访问龙信达 | 光敏电阻、光敏传感器、硅光电二极管-深圳市龙信达科技有限公司官网!
13316538160
4008 360 889
龙信达 | 光敏电阻、光敏传感器、硅光电二极管-深圳市龙信达科技有限公司
您的位置:首页 > 产品中心
联系我们

龙信达 | 光敏电阻、光敏传感器、硅光电二极管-深圳市龙信达科技有限公司

地址:深圳市宝安区新安创业西路东南侧富源商贸大厦1栋B座703(办公场所)
电话:4008 360 889

咨询热线4008 360 889

光敏电阻组件(光耦)

发布时间:2018-10-23人气:849


  文档类型  

  文档名称  
  描述  

认证结果


            关于化学品的注册、评估、授权和限制           

规格书



样品申请表



快速购买


 


特性/Features:
• High input-to-output voltage isolation
• True resistance element output
• Single or dual element outputs available
• Low cost
• Suitable for AC or DC use
• Wide range of input to output characteristics
• Low drive current
• Low “on” resistance, high “off” resistance
• Complete solid-state construction


                 

                 

Typical Applications:
• DC isolators
• Feedback elements in automatic gain control circuits
• Audio limiting and compression
• Noiseless switching
• Logic interfacing
• Remote gain control for amplifiers
• Photochoppers
• Noiseless potentiometers




The AOI also uses an optical link between input and output. The input element is an LED and the output element is always a photoconductive cell or, simply a photocell. Together, the coupled pair act as an electrically variable potentiometer. Since the output element of the AOI is a resistor, the voltage applied to this output resistor may be DC and/or AC and the magnitude may be as low as zero or as high as the maximum voltage rating. Because the input will control the magnitude of a complex waveform in a proportional manner, this type of isolator is an analog-control element. AOIs may be used in the ON-OFF mode but the fastest response time is only in the millisecond range. A level-sensitive Schmitt trigger is required between the AOI and logic gates when used in digital circuits.



Absolute Maximum Ratings @ 25°
Maximum Temperatures
•Storage and Operating: –40°C to 75°C
•Cell Power: 175 mW
•Derate Above 30°C: 3.9 mW/°C
•LED Current: 40 mA
•Derate Above 30°C: 0.9 mA/°C

•LED Reverse Breakdown Voltage: 3.0 V


                    

                   LED Forward Voltage Drop @ 20 mA: 2.0 V (1.65 V Typ.)
•5C8 = 2.8 V (2.2 V typ.)
•5C9 = 2.8 V (2.2 V typ.)
•5C10 = 2.8 V (2.2 V typ.)
•Minimum Isolation Voltage @70% Rel. 

Humidity: 2500 VRMSOutput Cell Capacitance: 5.0 pF

•Input/Output Coupling Capacitance: 0.5 pF



Analog Optical Isolators—5C Series

Specification Notes:

LED Current: Since the input has a substantially constant voltage drop, a current-limiting resistance is required.

ON Resistance: Dark adapted resistance measured after 24 or more hours of no input.

OFF Resistance: Measured 10 sec. after removal of the input. The ultimate resistance is many times greater than the value at 10 sec.

Response Time: Ascent measured to 63% of final conductance from the application of 40 mA input. The conductance rise time to a specified value is increased at reduced input drive while the conductance decay time to a specified value is decreased. Typical matching and tracking from 0.4 to 40 mA is 25%. Measured 5 sec. after removal of the input. The ultimate resistance is many times greater than the value at 5 sec.

5C9 response times are based on a 2 mA input. 5C10 response times are based on a 10 mA input for ascent time and a 1 mA input for decay time.

Typical Applications of Analog Optical Isolators




标签:全部

推荐资讯

    暂无推荐内容...
4008 360 889