By using this we can trigger anywhere in the cycle, so can call them as nonzero opto coupler. Moc301xm, moc302xm 6pin dip randomphase optoisolators triac driver output 250400 volt peak 2005 fairchild semiconductor corporation. Meaning it has a infrared light emitting diode led inside it coupled with a triac. The trigger signal is coming from a pic16f676 microcontroller. Moc3021 triac driven optoisolator pinout, specs, equivalent. Moc3021 m, moc3022, moc3023, moc3023m this entry was posted in fairchild and tagged driver, fairchild, optoisolator, triac. The moc3021m from fairchild is a through hole random phase triac driver output optocoupler in 6 pin dip package. By using this we can trigger anywhere in the cycle, so can call them as nonzero optocoupler. I think youre right and there is something wrong with triggering the opto triac.
They are designed for interfacing between electronic controls and power triacs to control resistive and inductive loads for 115 v ac operations. This device contains a gaas infrared emitting diode and a light activated silicon bilateral switch which functions like a triac. These devices contain a gaas infrared emitting diode and a light activated. The moc301xm and moc302xm series are optically isolated triac driver devices. To order devices that are tested and marked per vde 0884 requirements, thesuffix v must be included at end of part number. Moc3021 optoisolator triac driver qt optoelectronics west. Look at the spec sheets and it will show you how to connect it up. Moc3021 datenblatt triac driver optocouplers fairchild, moc3021 datenblatter, moc3021 datasheet pdf, spec, data sheet, pinouts, circuit, ic. These devices isolate low voltage logic from 115 vac and 240 vac lines to provide random phase. A triac, lamp load and a supply voltage are connected in series. This optoisolator should not be used to drive a load directly.
Moc3021m fairchild semiconductor corporation datasheet. Moc301xm, moc302xm 6pin dip randomphase optoisolators triac driver output 250400 volt peak safety and insulation ratings as per iec 6074752, this optocoupler is suitable for safe electrical insulation only within the safety limit data. Moc3021m, moc3022, moc3023, moc3023m this entry was posted in fairchild and tagged driver, fairchild, optoisolator, triac. Ift 15 ma for moc3021, 10 ma for moc3022, 5 ma for moc3023 and absolute max if 60 ma. Order this document semiconductor technical data by moc3020d. Globaloptoisolaror 6pin dip randomphase optoisolators triac driver output 400 volts peak the moc3020 series, isolated triac triggering. As optocoupler, i have a moc3021 that is coneccting the control circuit with the power circuit. These devices contain a gaas infrared emitting diode and a light activated silicon bilateral switch. How to use optocoupler and triac to control ac load. I am using a microcntroller to drive the opto coupler which in turn drives the gate of the triac. Buy moc3021 optocoupler ic in dubai, abu dhabi, sharjah or anywhere in the uae at edwin robotics. Moc3021 optoisolator ic is designed for interfacing between electronic controls and power triacs to control resistive and inductive loads for 115 vac operations. Liteon technology corporationproperty of liteon onlyfeatures isolation voltage between input and output viso.
Moc3021 light dimmer, triac bta16, zero crossing detector. Moc3021m on semiconductor optocoupler, triac output, dip. The moc3020 are designed for interfacing between electronic controls and power triac to control resistive and inductive loads for vac operations. Home components integrated circuits ic opto isolator optocoupler moc3021 nonzero crossing triac driver optocoupler. Im using an optocoupled scr moc3021 to switch a 120vac 18watt 120ma led light fixture with my arduino. The moc3021series consists of gallium arsenide infrared emitting diodes, optically coupled to a silicon bilateral switch.
Either way, an opto coupler will not be allowed to drive loads directly due to its limited current rating. To switch the ac current to the lamp, we have to use an opto coupled triac, lamp and a diac is shown in circuit below. Introduction of optocouplers types, working and applications. Moc3021 is a zerocrossing triac driven optocoupler or optoisolator. They are designed for interfacing between electronic controls and power triacs to control resistive and. Shop online moc3021 opto isolated triac driver icuse to interface electronic controls and power triacs to control resistive and inductive loads at 220v acdip6free shipping and cod available. Buy moc3021 surface mount smd ic online in india from dna.
Main terminal voltage 3 v3 moc3021 moc3022 moc3023 ift. Moc3021 optoisolator triac output 5000vrms 1 channel 6dip from liteon inc pricing and availability on millions of electronic components from digikey electronics. The problem is the triac is getting switched on automatically sometimes when i turn on mains. Sep 10, 2018 moc3021 datasheet pdf download other data sheets within the file. These components may or may not be necessary depending upon the particu lar triac and load used.
Moc3021 pin to pin compatible alternatives opto couplers. Refer to quality and reliability section in opto data book for information on test conditions. An opto isolator like moc3041 is normally used to control another external switching device like a triac, mosfet or scr which in turn will control an. Hi, look at the moc3021 and you will find it is a triac driver, it is used to control a triac that controls the current through your lamp. Opto coupled triacs such as the moc 3020, have voltage ratings of about 400 volts making them ideal for direct mains connection and a maximum current of about 100ma. The moc3021 m from fairchild is a through hole random phase triac driver output optocoupler in 6 pin dip package. Buy optocoupler ac triac 400vdrm out 1 channel 5000vrms dip6 moc3021.
Moc3021 optoisolator triac driver qt optoelectronics. The light produced by this led activates the triac and that time power is switched on. Additional information on the use of optically coupled triac drivers is available in application note an780a. The trigger signal is given according to an input event to the microcontroller. Order this document semiconductor technical data by. The moc3021 is normally used to control ac appliance, like brightness of a bulb, speed of a motor etc. Shop onlinemoc3021 optoisolated triac driver icuse to interface electronic controls and power triacs to control resistive and inductive loads at 220v acdip6free shipping and cod available. Moc3021 is an optically isolated triac driver device.
Jul 07, 2015 hi everyone, actually i have made a simple opto coupler moc3021 driven triac for lamp on off. Moc3021 datasheet pdf download other data sheets within the file. To order devices that are tested and marked per vde 0884 requirements, the suffix v must be included at end of part number. May 30, 2019 the ac bulb dimming circuit is based on the moc3021optoisolator triac driver and bta16 triac. Moc3021 datenblatt triac driver optocouplers fairchild. Optocoupler ac triac 400vdrm out 1 channel 5000vrms dip6. This device is designed for interfacing between electronic controls and power triacs to control resistive and inductive loads for 115 vac operation. Description, 6 pin 400v random phase triac driver output coupler. How to use optocoupler and triac to control ac load tutorial. Compliance with the safety ratings shall be ensured by means of protective circuits. The moc3021 is a optically isolated triac driver devices.
A small pulse clock pulse with 5 v range is applied to its input that is pin 1 and pin 2. Moc3021m on semiconductor optocoupler, triac output. Motorola application note an780a an780a an780a moc3021 moc3021 moc3q21 motorola an780a c3023 an 780a triac driver f opto moc3021 text. Also i made another change which is put 30k resistor series with triac gate. Moc3021m datasheet 6pin 400v random phase triac driver. It has a bta16 triac for phase control and it is driven by an optocoupler moc3021. Optoisolated triac driver, without built in zero crossingzc for dimmingphase control applications product code 3862. The moc3021 was designed for interfacing between electronic controls and high power triac to control loads for ac votage operations.
As i change the duty cycle of the pwm, it is supposed to change the intensity of the light, but it doesnt work. For higher powered loads, the opto triac may be used to provide the gate pulse to another larger triac via a current limiting resistor as shown. Mct2e nonzero transistor, fod3180 highspeed mosfet, 6n7highgsped nand, 4n25. The principle used in optocoupler is, mocs are promptly available in integrated circuit form and dont require very complex circuitry to make them work. It has an infrared emitting diode along with a light activated silicon bilateral switch that functions like a triac. The ac bulb dimming circuit is based on the moc3021optoisolator triac driver and bta16 triac. This universal triac controller circuit with optocoupler solves the problem that triacs have when functioning at low temperatures triac needs higher gate current by adding a transistor at the output of the optocoupler circuit. Hi everyone, actually i have made a simple optocoupler moc3021 driven triac for lamp on off. Output driver designed for 220 v ac standard 6terminal plastic dip directly interchangeable with motorola moc3020, moc3021. Some uses for them are in traffic lights, vending machines, and industrial controls. Also about the duration pulse, ive tried different ontime duration but it seems it lose control when the ac line voltage increases. I am using a microcntroller to drive the optocoupler which in turn drives the gate of the triac. Moc3021 are very widely used and can be quite easily obtained from many sources.
Moc3021 nonzero crossing triac driver optocouplerbuy online electronic components shop wholesale best lowest price india the moc3021series consists of gallium arsenide infrared emitting diodes, optically coupled to a silicon bilateral switch. The opto led is driven by about 30ma with 100r series resistor with transistor collector. Moc3021m on semiconductor, optocoupler, triac output, dip. Moc3021 datasheet16 pages motorola 6pin dip random.
These devices contain a gaas infrared emitting diode and a light activated silicon bilateral switch, which functions like a triac. Moc3021 datasheet18 pages liteon 6pin dip photocoupler. Available we dispatch same day if ordered by 4pm excluding holidays, then courier usually takes 25 days. Moc3021 is an opto coupler designed for triggering triacs. Moc3021 contains a gaas infrared emitting diode and a light activated silicon bilateral switch, which functions like a triac. Semko demko nemko babt 6pin dip random phase o ptoisolators triac driver output 400 volts peak, silicon bilateral switch. Moc3021 datasheet optoisolators triac driver fairchild. To switch the ac current to the lamp, we have to use an optocoupled triac, lamp and a diac is shown in circuit below. They are normally connected to another power switch like a triac in our case, this triac will be able to provide enough current to drive. The mco3020 is an optoisolator triac driver device. Simply give a small pulse at the right time to the led in the. Moc3021 is an optocoupler designed for triggering triacs.
Pin number 1 is the anode and pin number 2 is the cathode as per the datasheeta 330 resistor is connected in series with the anode of the ir led. The moc3021 is a zerocrossing triac driven optocoupler. The moc3021 has actually total of 6 pins but pin number 3 and pin number 5 are not used. This device contains a gaas infrared emitting diode and a light activated silicon bilateral switch, which functions like a triac. Since the output is driven by a triac we can drive loads upto 400v and the triac can conduct in both directions hence controlling ac loads will not be a problem. Motorola, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Either way, an optocoupler will not be allowed to drive loads directly due to its limited current rating. As per iec 60747 52, this optocoupler is suitable for safe electrical insulation only within the. Opto triacs and particularly moc3022 electronics forum. When the led is triggered the triac is also turned on.
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