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EL101XH-G Phototransistor Photocoupler Datasheet - Kifurushi cha 4-Pin SOP - Umbali wa 8mm wa Creepage - Utofautishaji wa 5000Vrms - Bila Halojeni - Waraka wa Kiufundi wa Kiswahili

Maelezo ya kina ya kiufundi kwa mfululizo wa EL101XH-G wa 4-pin SOP phototransistor photocoupler. Vipengele ni pamoja na utofautishaji wa 5000Vrms, umbali mrefu wa creepage wa 8mm, usawa wa kutokuwa na halojeni, na anuwai pana ya joto la uendeshaji kutoka -55°C hadi 125°C.
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Nyumbani » Nyaraka » EL101XH-G Phototransistor Photocoupler Datasheet - Kifurushi cha 4-Pin SOP - Umbali wa 8mm wa Creepage - Utofautishaji wa 5000Vrms - Bila Halojeni - Waraka wa Kiufundi wa Kiswahili

Orodha ya Yaliyomo

1. Muhtasari wa Bidhaa

Mfululizo wa EL101XH-G unawakilisha familia ya photocouplers za phototransistor zenye utendaji wa juu (optocouplers) zilizoundwa kwa ajili ya utofautishaji thabiti wa ishara katika matumizi magumu ya elektroniki. Vifaa hivi vimeundwa kutoa kizuizi thabiti cha galvaniki kati ya saketi za ingizo na pato, kuzuia vitanzi vya ardhi, mipigo ya voltage, na kelele kusambaa kati ya sehemu tofauti za mfumo. Kazi kuu hufikiwa kwa diode inayotoa mwanga wa infrared inayounganishwa kwa mwanga kwa kigunduzi cha phototransistor cha silikoni, yote yakiwa ndani ya kifurushi kidogo cha 4-pin Small Outline Package (SOP).

Kipengele kikuu cha kutofautisha cha mfululizo huu niumbali mrefu wa creepage wa 8mm, ambao huongeza kwa kiasi kikubwa usalama na uaminifu katika matumizi yanayohitaji voltage za juu za utofautishaji. Ubunifu huu, ukichanganywa na5000 Vrmskiwango cha voltage ya utofautishaji, hufanya mfululizo huu ufawe kwa mifumo ya udhibiti wa viwanda, vifaa vya usambazaji wa umeme, na vifaa ambapo usalama wa mtumiaji na ulinzi wa vifaa ni muhimu zaidi. Vifaa hivi pia hutengenezwa kuwabila halojeni, kuzingatia kanuni za kimazingira kwa kuzuia maudhui ya bromini (Br) na klorini (Cl).

Soko la lengo la mfululizo wa EL101XH-G ni pana, likijumuisha otomatiki ya viwanda, mawasiliano, vyombo vya kupimia, na vifaa vya watumiaji. Matumizi ya kawaida ni pamoja na utofautishaji katika moduli za I/O za programu ya udhibiti wa mantiki (PLC), usambazaji wa ishara katika vifaa vya mawasiliano, utofautishaji wa kiolesura katika vyombo vya kupimia, na utofautishaji wa usalama katika vifaa vya nyumbani kama vile jiko la joto la upepo.

. Technical Parameter Deep-Dive

.1 Absolute Maximum Ratings

These ratings define the stress limits beyond which permanent damage to the device may occur. Operation under or at these limits is not guaranteed.

.2 Electro-Optical Characteristics

These parameters define the device's performance under normal operating conditions (Ta= 25°C unless noted).

.2.1 Input Characteristics (LED Side)

.2.2 Output Characteristics (Phototransistor Side)

.2.3 Transfer Characteristics

These parameters define the coupling efficiency and speed between input and output.

. Grading System Explanation

The EL101XH-G series utilizes aCTR-based grading system, which is the primary differentiator between part numbers. The "X" in the part number EL101XH-G denotes the CTR rank (0, 1, 7, 8, 9). Each rank corresponds to a specific minimum and typical CTR range, as detailed in section 2.2.3. This allows designers to select a device with the precise gain needed for their application. Choosing a higher CTR grade (e.g., EL1019H) can reduce the required drive current for the input LED, lowering power consumption and heat generation. Conversely, a lower CTR grade might be sufficient for applications with ample drive current available.

. Performance Curve Analysis

While the PDF indicates the presence of "Typical Electro-Optical Characteristics Curves," the specific graphs are not provided in the text content. Typically, such datasheets include curves showing the relationship between:

Designers should consult the official datasheet with graphical plots to accurately model device behavior under non-standard conditions.

. Mechanical and Package Information

.1 Pin Configuration

The 4-pin SOP package has the following pinout:

  1. Anodeof the input infrared LED.
  2. Cathodeof the input infrared LED.
  3. Emitterof the output phototransistor.
  4. Collectorof the output phototransistor.
This is a standard configuration for phototransistor photocouplers.

.2 Package Dimensions and Footprint

The device is described as a "Compact 4 Pin SOP with a 2.2 mm profile." The PDF includes a "Package Dimension" diagram and a "Recommended pad layout for surface mount." The pad layout suggestion is provided as a reference, and the datasheet explicitly advises designers to modify the pad dimensions based on their specific PCB manufacturing processes and thermal requirements. Proper pad design is essential for reliable soldering and mechanical strength.

. Soldering and Assembly Guidelines

The key parameter provided is thesoldering temperature: 260°C for 10 seconds. This aligns with typical lead-free reflow soldering profiles (IPC/JEDEC J-STD-020). Designers and manufacturers must ensure their reflow oven profile does not exceed this time-at-temperature to prevent damage to the internal epoxy mold compound and the wire bonds. Standard handling procedures for moisture-sensitive devices (MSL rating, which is not specified in the provided text but should be checked in the full datasheet) should be followed, including baking if the packaging has been exposed to ambient humidity beyond its rated level.

. Packaging and Ordering Information

.1 Model Numbering Rule

The part number follows the format:EL101X H(Y)- VG

Example: EL1018H-VG is the halogen-free, VDE-certified version with CTR rank 8.

.2 Packaging Specifications

The device is available in two main packaging forms:

.3 Device Marking

The top of the SOP package is marked with a code:EL 101X H Y WW V

. Application Recommendations

.1 Typical Application Circuits

The photocoupler can be used in two primary modes:

  1. Digital Switching / Isolation: The input LED is driven by a digital signal (e.g., from a microcontroller GPIO). The phototransistor output acts as a switch, pulling a line to ground or VCCthrough a pull-up resistor. The switching time specifications determine the maximum data rate.
  2. Linear Signal Isolation: By operating the phototransistor in its active region (not saturated), it can be used to transmit analog signals. However, the non-linear CTR and its variation with temperature make this challenging without additional compensation circuitry. It is more common to use a dedicated linear optocoupler for such tasks.

.2 Design Considerations

. Technical Comparison and Advantages

The EL101XH-G series differentiates itself in the market through several key features:

. Frequently Asked Questions (Based on Technical Parameters)

Q1: What is the purpose of the long creepage distance?

A1: Creepage distance is the shortest path along the surface of the insulating package between two conductive parts (input and output pins). An 8mm distance increases protection against high-voltage arcing or tracking across the package surface, especially in humid or contaminated environments, enhancing long-term reliability and safety.

Q2: How do I choose the right CTR grade?

A2: Select based on your available drive current and required output current. If your microcontroller can only provide 5mA, choose a high-CTR grade (e.g., EL1019H) to get sufficient output current. If you have ample drive current, a lower grade may be more cost-effective. Always design for the worst-case (minimum CTR at maximum temperature).

Q3: Can this be used for AC signal isolation?

A3: The phototransistor output is unidirectional (current flows from Collector to Emitter). To isolate an AC signal, you would typically use two devices in inverse-parallel configuration or a dedicated AC-input optocoupler. For digital AC zero-crossing detection, it can be used with a bridge rectifier on the input.

Q4: What is the difference between isolation voltage and collector-emitter voltage rating?

A4: Isolation voltage (5000Vrms) is the dielectric withstand voltagebetweenthe input and output sides of the package. Collector-emitter voltage (80V) is the maximum voltage that can be appliedacross the output transistor itselfduring normal operation. They are completely different parameters.

. Practical Design Case Study

Scenario:Isolating a 3.3V microcontroller GPIO signal to control a 24V relay coil on a separate power domain in an industrial PLC module.



Design Steps:

  1. Input Side:The MCU GPIO is 3.3V. Assuming a desired IFof 5mA and a typical VFof 1.2V, calculate Rlimit= (3.3V - 1.2V) / 0.005A = 420Ω. Use a standard 430Ω resistor.
  2. CTR Selection:The relay coil driver transistor base requires ~5mA. With IF=5mA, minimum required CTR = (5mA / 5mA)*100% = 100%. To ensure operation at 125°C (where CTR is lower), select a grade with comfortable margin. EL1018H (min CTR 130%) is a good choice.
  3. Output Side:Connect the phototransistor collector to the 24V supply via a pull-up resistor (RL). The emitter connects to the base of the relay driver transistor (an NPN BJT or an N-channel MOSFET gate). When the MCU output is high, the LED is on, the phototransistor saturates, pulling the base to near ground, turning off the driver. When the MCU output is low, the LED is off, the phototransistor is off, and a separate bias resistor pulls the driver base high to activate the relay. A snubber diode is required across the relay coil.
  4. Layout:Keep the input and output traces physically separated on the PCB. Place the bypass capacitors close to the device pins. Follow the recommended pad layout for reliable soldering.
This design provides robust isolation, protecting the sensitive microcontroller from transients generated by the inductive relay coil.

. Operating Principle

A photocoupler (or optocoupler) is a device that transfers electrical signals between two isolated circuits using light. In the EL101XH-G series:

  1. An electrical current applied to theinput pins (Anode and Cathode)causes the integratedinfrared light-emitting diode (LED)to emit photons.
  2. These photons travel through a transparent insulating material (typically a molded epoxy) within the package.
  3. The photons strike the base region of asilicon phototransistoron theoutput side.
  4. This light energy generates electron-hole pairs in the base, effectively acting as a base current and causing the transistor to conduct between itsCollector and Emitter pins.
  5. The amount of output collector current (IC) is proportional to the input LED current (IF), with the proportionality constant being the Current Transfer Ratio (CTR).
The key is that the only connection between the input and output is a beam of light, providing excellent electrical isolation determined by the properties of the insulating barrier and the internal distance between the LED and the phototransistor chip.

. Industry Trends

The market for isolation components like photocouplers is evolving driven by several key trends:

Devices like the EL101XH-G series, with its focus on high isolation, long creepage, and environmental compliance, are positioned to meet the enduring needs of traditional, safety-critical industrial and power applications where robustness and certifications are paramount.

Istilahi ya Mafanikio ya LED

Maelezo kamili ya istilahi za kiufundi za LED

Utendaji wa Fotoelektriki

Neno Kipimo/Uwakilishaji Maelezo Rahisi Kwa Nini Muhimu
Ufanisi wa Mwanga lm/W (lumen kwa watt) Pato la mwanga kwa watt ya umeme, juu zaidi inamaanisha ufanisi zaidi wa nishati. Moja kwa moja huamua daraja la ufanisi wa nishati na gharama ya umeme.
Mtiririko wa Mwanga lm (lumen) Jumla ya mwanga unaotolewa na chanzo, kwa kawaida huitwa "mwangaza". Huamua ikiwa mwanga ni mkali wa kutosha.
Pembe ya Kutazama ° (digrii), k.m., 120° Pembe ambayo ukali wa mwanga hupungua hadi nusu, huamua upana wa boriti. Husaidiana na anuwai ya taa na usawa.
Joto la Rangi K (Kelvin), k.m., 2700K/6500K Uzito/baridi ya mwanga, thamani za chini ni za manjano/moto, za juu ni nyeupe/baridi. Huamua mazingira ya taa na matukio yanayofaa.
Kiwango cha Kurejesha Rangi Hakuna kipimo, 0–100 Uwezo wa kuonyesha rangi za vitu kwa usahihi, Ra≥80 ni nzuri. Husaidiana na ukweli wa rangi, hutumiwa katika maeneo yenye mahitaji makubwa kama vile maduka makubwa, makumbusho.
UVumilivu wa Rangi Hatua za duaradufu za MacAdam, k.m., "hatua 5" Kipimo cha uthabiti wa rangi, hatua ndogo zina maana rangi thabiti zaidi. Inahakikisha rangi sawa katika kundi moja ya LED.
Urefu wa Mawimbi Kuu nm (nanomita), k.m., 620nm (nyekundu) Urefu wa mawimbi unaolingana na rangi ya LED zenye rangi. Huamua rangi ya LED nyekundu, ya manjano, ya kijani kibichi zenye rangi moja.
Usambazaji wa Wigo Mkondo wa urefu wa mawimbi dhidi ya ukali Inaonyesha usambazaji wa ukali katika urefu wa mawimbi. Husaidiana na uwasilishaji wa rangi na ubora.

Vigezo vya Umeme

Neno Ishara Maelezo Rahisi Vizingatiaji vya Uundaji
Voltage ya Mbele Vf Voltage ya chini kabisa kuwasha LED, kama "kizingiti cha kuanza". Voltage ya kiendeshi lazima iwe ≥Vf, voltage huongezeka kwa LED zinazofuatana.
Mkondo wa Mbele If Thamani ya mkondo wa uendeshaji wa kawaida wa LED. Kwa kawaida kuendesha kwa mkondo wa mara kwa mara, mkondo huamua mwangaza na muda wa maisha.
Mkondo wa Pigo wa Juu Ifp Mkondo wa kilele unaoweza kustahimili kwa muda mfupi, hutumiwa kwa kudhoofisha au kumulika. Upana wa pigo na mzunguko wa kazi lazima udhibitiwe kwa ukali ili kuzuia uharibifu.
Voltage ya Nyuma Vr Voltage ya juu ya nyuma ambayo LED inaweza kustahimili, zaidi ya hapo inaweza kusababisha kuvunjika. Mzunguko lazima uzuie muunganisho wa nyuma au mipigo ya voltage.
Upinzani wa Moto Rth (°C/W) Upinzani wa uhamishaji wa joto kutoka chip hadi solder, chini ni bora. Upinzani wa juu wa moto unahitaji upotezaji wa joto wa nguvu zaidi.
Kinga ya ESD V (HBM), k.m., 1000V Uwezo wa kustahimili utokaji umeme, juu zaidi inamaanisha hatari ndogo. Hatua za kuzuia umeme zinahitajika katika uzalishaji, hasa kwa LED nyeti.

Usimamizi wa Joto na Uaminifu

Neno Kipimo Muhimu Maelezo Rahisi Athari
Joto la Makutano Tj (°C) Joto halisi la uendeshaji ndani ya chip ya LED. Kila kupungua kwa 10°C kunaweza kuongeza muda wa maisha maradufu; juu sana husababisha kupungua kwa mwanga, mabadiliko ya rangi.
Upungufu wa Lumen L70 / L80 (saa) Muda wa mwangaza kushuka hadi 70% au 80% ya mwanzo. Moja kwa moja hufafanua "muda wa huduma" wa LED.
Matengenezo ya Lumen % (k.m., 70%) Asilimia ya mwangaza uliobakizwa baada ya muda. Inaonyesha udumishaji wa mwangaza juu ya matumizi ya muda mrefu.
Mabadiliko ya Rangi Δu′v′ au duaradufu ya MacAdam Kiwango cha mabadiliko ya rangi wakati wa matumizi. Husaidiana na uthabiti wa rangi katika mandhari ya taa.
Kuzeeka kwa Moto Uharibifu wa nyenzo Uharibifu kutokana na joto la juu la muda mrefu. Kunaweza kusababisha kupungua kwa mwangaza, mabadiliko ya rangi, au kushindwa kwa mzunguko wazi.

Ufungaji na Vifaa

Neno Aina za Kawaida Maelezo Rahisi Vipengele na Matumizi
Aina ya Kifurushi EMC, PPA, Kauri Nyenzo ya nyumba zinazolinda chip, zinazotoa kiolesura cha macho/moto. EMC: upinzani mzuri wa joto, gharama nafuu; Kauri: upotezaji bora wa joto, maisha marefu.
Muundo wa Chip Mbele, Chip ya Kugeuza Upangaji wa elektrodi za chip. Chip ya kugeuza: upotezaji bora wa joto, ufanisi wa juu, kwa nguvu ya juu.
Mipako ya Fosforasi YAG, Siliketi, Nitradi Inafunika chip ya bluu, inabadilisha baadhi kuwa manjano/nyekundu, huchanganya kuwa nyeupe. Fosforasi tofauti huathiri ufanisi, CCT, na CRI.
Lensi/Optiki Tambaa, Lensi Ndogo, TIR Muundo wa macho juu ya uso unaodhibiti usambazaji wa mwanga. Huamua pembe ya kutazama na mkunjo wa usambazaji wa mwanga.

Udhibiti wa Ubora na Uainishaji

Neno Maudhui ya Kugawa Maelezo Rahisi Madhumuni
Bin ya Mtiririko wa Mwanga Msimbo k.m. 2G, 2H Imegawanywa kulingana na mwangaza, kila kikundi kina thamani ya chini/ya juu ya lumen. Inahakikisha mwangaza sawa katika kundi moja.
Bin ya Voltage Msimbo k.m. 6W, 6X Imegawanywa kulingana na anuwai ya voltage ya mbele. Hurahisisha mechi ya kiendeshi, huboresha ufanisi wa mfumo.
Bin ya Rangi Duaradufu ya MacAdam ya hatua 5 Imegawanywa kulingana na kuratibu za rangi, kuhakikisha anuwai nyembamba. Inahakikisha uthabiti wa rangi, huzuia rangi isiyo sawa ndani ya kifaa.
Bin ya CCT 2700K, 3000K n.k. Imegawanywa kulingana na CCT, kila moja ina anuwai inayolingana ya kuratibu. Inakidhi mahitaji tofauti ya CCT ya tukio.

Kupima na Uthibitishaji

Neno Kiwango/Majaribio Maelezo Rahisi Umuhimu
LM-80 Majaribio ya ulinzi wa lumen Mwanga wa muda mrefu kwa joto la kawaida, kurekodi uharibifu wa mwangaza. Inatumika kukadiria maisha ya LED (na TM-21).
TM-21 Kiwango cha makadirio ya maisha Inakadiria maisha chini ya hali halisi kulingana na data ya LM-80. Inatoa utabiri wa kisayansi wa maisha.
IESNA Jumuiya ya Uhandisi wa Taa Inajumuisha mbinu za majaribio ya macho, umeme, joto. Msingi wa majaribio unayotambuliwa na tasnia.
RoHS / REACH Udhibitisho wa mazingira Inahakikisha hakuna vitu vya hatari (risasi, zebaki). Mahitaji ya kuingia kwenye soko kimataifa.
ENERGY STAR / DLC Udhibitisho wa ufanisi wa nishati Udhibitisho wa ufanisi wa nishati na utendaji wa taa. Inatumika katika ununuzi wa serikali, programu za ruzuku, huongeza ushindani.