LTPL-C16FUVM365 UV LED Datasheet - 3.5x3.2x1.9mm - 3.5V - 160mW - 365nm Peak Wavelength - Simplified Chinese Technical Document

1. Product Overview

The LTPL-C16 series represents a significant advancement in solid-state lighting technology, specifically designed for ultraviolet (UV) applications. This product is a revolutionary, highly efficient, and ultra-compact light source that combines the inherent long lifespan and high reliability of light-emitting diodes (LEDs) with the intensity required to replace traditional UV lighting technologies. Its miniature form factor offers designers exceptional freedom and provides unparalleled brightness for its size class, opening up new possibilities for various industrial and manufacturing processes.

1.1 Key Features and Advantages

Babban fa'idar wannan kayan ta samo asali ne daga ƙirarta da hanyar kera ta:

• Daidaituwa da Sarrafa Kansa:Wannan na'urar cikakke ce ta dace da daidaitattun na'urorin haɗawa ta atomatik, yana sauƙaƙa haɗawa mai yawa, mai fa'ida akan allon da'ira bugu (PCB).
• Daidaituwa da Solder Gudu:Ƙirarta tana iya jurewa hanyoyin solder na infrared (IR) da na iskar gas, waɗanda suke daidaitattun hanyoyin ƙera na zamani.
• Kunshin Daidaitacce:This component conforms to the EIA (Electronic Industries Alliance) standard package dimensions, ensuring compatibility with industry-standard surface-mount systems and tape-and-reel packaging.
• Integrated Circuit (IC) Compatibility:Its electrical characteristics allow for easy direct drive or control using common driver ICs, thereby simplifying circuit design.
• Environmental Compliance:This product is manufactured as a green product and is lead (Pb)-free, complying with the RoHS (Restriction of Hazardous Substances) directive.

1.2 Target Applications

This UV LED is designed for applications requiring a compact, reliable, and efficient ultraviolet light source in the 365nm range. Primary application areas include:

• UV Curing:Instant curing of adhesives, coatings, inks, and resins during manufacturing and assembly processes.
• UV Marking and Coding:Promotes photochemical reactions for marking or coding on various materials.
• UV Bonding:Activates and cures specialized UV-curable adhesives.
• Printing and Drying:Dries and cures printing inks and other coloring materials.
• Fluorescence Excitation:Causes materials to fluoresce, used for detection, anti-counterfeiting, or decorative purposes.
• Used in disinfection, analysis, or therapeutic equipment requiring controlled ultraviolet irradiation.2. Detailed Technical Specifications

This section provides a detailed and objective analysis of the device's key performance parameters based on the datasheet. Unless otherwise specified, all specifications are defined at an ambient temperature (Ta) of 25°C.

2.1 Absolute Maximum Ratings

These ratings define the stress limits that may cause permanent damage to the device. In reliable design, operation at or beyond these limits should not be guaranteed and should be avoided.

Power Dissipation (Po):

• 160 mW. This is the maximum power that the package can dissipate as heat.DC Forward Current (If):
• 40 mA. The maximum continuous forward current that can be applied.Reverse Voltage (Vr):
• 5 V. Exceeding this voltage under reverse bias may cause immediate breakdown.Operating Temperature Range (Topr):
• -40°C to +85°C. The ambient temperature range for normal operation.Temperature Range for Storage (Tstg):
• -40°C to +100°C.Junction Temperature (Tj):
• 90°C. The maximum temperature allowed for the semiconductor junction itself.2.2 Photometric Characteristics

Waɗannan siffofi ne na aikin yau da kullun a ƙarƙashin ƙayyadaddun yanayin gwaji.

Radiant Flux (Φe):

• 14-26 mW (Min.-Typ.-Max.) at a forward current (If) of 20mA. This is the total optical power output in the ultraviolet spectrum. The measurement tolerance is ±10%.Viewing Angle (2θ1/2):
• 135 degrees (Typical). This defines the angular range at which the emitted UV light intensity drops to half of its peak value.Peak Wavelength (λp):
• At If=20mA, it is 362.5-370 nm. The specific wavelength at which the LED emits the most optical power, with a central wavelength around 365nm. The tolerance is ±3nm.Forward Voltage (Vf):
• At If=20mA, it is 2.8-4.0 V. The voltage drop across the LED when the specified current passes through it. The measurement tolerance is ±0.1V.Reverse Current (Ir):
• At a reverse voltage (Vr) of 1.2V, it is a maximum of 10 µA. This parameter is tested to verify its Zener-like characteristics, but the deviceis not designed for reverse operation.Prolonged reverse bias may lead to failure.Thermal resistance (Rθj-s):
• 53 °C/W (typical). This key parameter indicates the efficiency of heat transfer from the semiconductor junction (j) to the solder point or case (s). A lower value means better heat dissipation.2.3 Thermal Management Considerations

Thermal resistance na 53°C/W muhimmin abu ne na ƙira. Misali, a cikin matsakaicin ƙimar wutar lantarki na 160mW, hawan zafin jiki daga solder joint zuwa junction shine kusan 160mW * 53°C/W = 8.5°C. Masu ƙira dole ne su tabbatar cewa ƙirar PCB da tsarin tsarin suna kiyaye zafin solder joint a matakin da ya isa, domin tabbatar da cewa zafin junction (Tj) bai wuce matsakaicin sa na 90°C ba, musamman lokacin aiki a cikin babban ƙarfin lantarki ko yanayin zafi mai girma. Wuce gona da iri na Tj yana rage rayuwa da kuma rage fitowar radiation.

3. Explanation of the Binning Code System

Dangane da mahimman sigogi, ana rarraba na'urar zuwa matakan aiki daban-daban, don tabbatar da daidaito a cikin rukunin samarwa ɗaya. Ana yiwa alamar lambar rarrabuwa akan marufi.

3.1 Forward Voltage (Vf) Binning

Lokacin da aka auna a If=20mA, ana rarraba na'urar zuwa matakan ƙarfin lantarki guda uku (V1, V2, V3). Wannan yana ba masu ƙira damar zaɓar LED masu kama da faɗuwar ƙarfin lantarki don aikace-aikacen da daidaitawar ƙarfin lantarki a cikin layukan haɗin gwiwa ke da mahimmanci, ko kuma suyi hasashen buƙatun wutar lantarki daidai.

3.2 Radiant Flux (Φe) Binning

The optical output power is divided into six categories (R3 through R8), each representing a 2mW range from 14mW to 26mW (at If=20mA). This enables selection based on the required UV intensity, facilitating brightness matching in multi-LED arrays.

3.3 Peak Wavelength (λp) Binning

The center emission wavelength is divided into three tight ranges (P3M2, P3N1, P3N2), each spanning 2.5nm around the 365nm target wavelength. This is crucial for applications sensitive to specific UV wavelengths, such as initiating particular photoinitiators during curing processes.

4. Performance Curve Analysis

The datasheet provides several characteristic curves, which are essential for understanding the device's behavior under real-world conditions.

4.1 Relative Radiant Flux vs. Forward Current

This curve shows that the optical output (radiant flux) increases superlinearly with forward current. While driving at higher currents yields more UV output, it also increases power consumption and junction temperature, leading to reduced efficiency and accelerated aging. The typical test condition of 20mA represents a balanced operating point.

4.2 Forward Current vs. Forward Voltage (I-V Curve)

Lanƙwasa I-V tana nuna alaƙar diode na yau da kullun. "Karkatar" wutar lantarki kusan 3V ne. Wannan lanƙwasa tana da mahimmanci don ƙirar da'irar iyakancewa, ko dai ta amfani da mai juriya mai sauƙi ko kuma mai sarrafa halin yanzu na dindindin.

4.3 Dangantaccen ƙarfin haske vs. Yanayin zafi na junction

Wannan zane yana kwatanta ƙimar zafin jiki mara kyau na fitarwa na LED. Yayin da zafin jiki (Tj) ya tashi, radiation flux yana raguwa. Wannan yana jaddada mahimmancin sarrafa zafi mai inganci a cikin aikace-aikace don kiyaye daidaitaccen fitarwa na ultraviolet a tsawon lokaci da kuma a cikin yanayin aiki daban-daban.

4.4 Dangantaccen bakan fitarwa

Taswirar bakan tana nuna ƙaramin rarraba Gaussian wanda ke tsakiya a tsayin tsayin daka (misali ~365nm). FWHM (Full Width at Half Maximum) sifa ce ta LED na ultraviolet, yana nuna cewa yana fitar da hasken UV-A mai tsafta, ba tare da fitowar haske na gani ko infrared ba.

5. Bayanin injiniya da marufi

5.1 Girman Siffa

This device uses an ultra-compact surface-mount package. Key dimensions (in millimeters) are approximately: length 3.5mm, width 3.2mm, height 1.9mm. The cathode is typically identified by a marking on the package. A detailed dimensional drawing is provided in the source file, with a standard tolerance of ±0.1mm.

5.2 Shawararriyar Tsarin Filayen PCB

A land pattern design for infrared or vapor phase reflow soldering is provided. This pattern is optimized to ensure proper solder joint formation, mechanical stability, and effective heat transfer from the LED's thermal pad (if present) or leads to the PCB copper layer. Adhering to this recommendation is critical for reliability.

6. Jagororin Haɗawa, Walda, da Aiki

6.1 Reflow Soldering Temperature Profile

A detailed temperature-time profile is specified for lead-free (Pb-free) soldering processes. Key parameters include:

Preheat:

• 150-200°C, maximum 120 seconds.Peak temperature:
• Maximum 260°C, measured on the package body surface.Time above liquidus (TAL):
• Recommended to be within standard IPC guidelines.Yawan sanyin sanyi:
• Ba a ba da shawarar sanyaya da sauri daga yawan zafin jiki, domin girgizar zafi na iya haifar da damuwa.Koyaushe ana son yin amfani da mafi ƙarancin zafin gyaɗa wanda zai haifar da ingantaccen haɗin gyaɗa, don rage matsin lamba na zafi akan LED.

6.2 Haɗin gyaɗa na hannu

If hand soldering must be performed, extreme caution is required:

Zafin guntun gyaɗa:

• Matsakaicin 300°C.Welding Time:
• Maximum 3 seconds per solder joint.Limitation:
• Soldering should be performed only once. Rework is strongly discouraged.6.3 Cleaning

Unspecified chemical cleaners may damage the LED package. If cleaning after soldering is required, the only recommended method is to immerse the LED in ethanol or isopropyl alcohol at room temperature for no more than one minute.

6.4 Electrostatic Discharge (ESD) Precautions

UV LEDs are sensitive to electrostatic discharge and voltage surges. Proper ESD control measures must be taken during handling and assembly:

Use a wrist strap or anti-static gloves.

• Ensure all equipment, tools, and workbenches are properly grounded.
• Use conductive or dissipative mats.
• 6.5 Moisture Sensitivity and Storage

According to JEDEC standard J-STD-020, this product is classified as Moisture Sensitivity Level (MSL) 3.

Moisture Barrier Bag:

• Store at ≤30°C and ≤90% relative humidity (RH). Shelf life is one year in the original moisture barrier bag with desiccant.Opened Bag:
• After opening, store at ≤30°C and ≤60% RH. The "floor life" for soldering is 168 hours (7 days) from the time the bag is opened.Baking:
• If the humidity indicator card turns pink (≥10% RH) or the floor life is exceeded, the LEDs must be baked at 60°C for at least 48 hours prior to use. After baking, any remaining devices should be resealed in the original packaging with new desiccant.7. Packaging and Ordering Information

7.1 Tape and Reel Specifications

Components are supplied in embossed carrier tape for automatic assembly.

Reel size:

• Standard 7-inch (178mm) reel.Quantity per reel:
• Typically 1500 pieces.Pocket sealing:
• Empty pockets are sealed with cover tape.Missing components:
• According to the specification, a maximum of two consecutive LED beads are allowed to be missing.Standard:
• Packaging complies with the EIA-481-1-B specification.The source file provides detailed dimensions for the carrier tape, cover tape, and reel.

8. Application Design Considerations

8.1 Driving Method

LED is a current-driven device. For reliable and consistent operation, it

dolea sarrafa shi ta hanyar tushen ƙarfin lantarki mai dorewa, ba tushen ƙarfin lantarki mai dorewa ba. Yin amfani da tushen ƙarfin lantarki na iya haifar da rashin kulawa da zafi da lalacewa. Lokacin haɗa LED da yawa, an fi son haɗa su a jere, saboda yana tabbatar da cewa ƙarfin lantarki iri ɗaya ne ke ratsa kowane na'ura. Idan haɗin kai ba zai yiwu ba, ana ba da shawarar sosai don amfani da ƙayyadaddun resistor ko na'ura mai sarrafa kowane reshe, don daidaita bambancin ƙarfin lantarki na gaba (Vf) da kuma tabbatar da daidaiton ƙarfi.8.2 Zubar da Zafi da Tsarin PCB

Idan aka yi la'akari da juriyar zafi na 53°C/W (Rθj-s), PCB yana aiki azaman babban mai sanyaya. Yi amfani da PCB mai isasshen kauri na tagulla (misali, 2 oza). Ƙirƙira filayen tagulla a ƙarƙashin LED da kewaye da shi gwargwadon yiwuwa. Haɗa filaye zuwa cikin filaye na ƙasa ko filaye na tagulla na ƙasa ta hanyar ramukan zafi na iya inganta sanyaya sosai. A cikin aikace-aikacen da ke da ƙarfi mai yawa ko yanayin zafi mai yawa, yi la'akari da ƙarin matakan sarrafa zafi, kamar PCB na tushen ƙarfe (MCPCB) ko sanyaya mai ƙarfi.

8.3 Tsarin Gani

Kallon kusurwa na digiri 135 yana ba da tsarin fitarwa mai faɗi. Don aikace-aikacen da ke buƙatar mai da hankali ko daidaita hasken UV, dole ne a yi amfani da na'urorin gani na biyu, kamar ruwan tabarau ko mai nuna haske. Kayan waɗannan na'urorin gani dole ne su kasance masu bayyana ga hasken UV-A (misali, gilashin musamman, quartz, ko robobi masu bayyana UV kamar acrylic). Kayayyakin gani na yau da kullun na iya ɗaukar hasken ultraviolet.

8.4 Aminci da Bayanin Kariya na Amincewa

An tsara wannan na'urar don amfani da ita a cikin na'urorin lantarki na yau da kullun. Ba a tsara shi ko ba shi da izini don aikace-aikacen da gazawar ta iya yin barazana kai tsaye ga rayuwa, lafiya, ko aminci—misali jirgin sama, sufuri, tsarin tallafin rayuwa na likita, ko sarrafa nukiliya. Don irin waɗannan aikace-aikacen, dole ne a tuntubi masana'anta na kayan aiki, kuma ana iya amfani da abubuwan da aka keɓe don ingantaccen aminci (hi-rel) ko amfanin likita.

9. Kwatancen Fasaha da Yanayin Kasuwa

9.1 Fa'idodi akan tushen hasken ultraviolet na gargajiya

Idan aka kwatanta da na gargajiya kamar Mercury Vapor Lamp, wannan LED yana bayar da:

Kunna/Kashe Nan take:

• Babu lokacin dumama ko sanyaya da ake buƙata.Long lifespan:
• Tens of thousands of hours, whereas fluorescent tubes last only thousands of hours.High energy efficiency:
• Higher radiant efficiency, converting more electrical energy into useful ultraviolet light.Compact size and design flexibility:
• Can be integrated into small, portable devices.Low-temperature operation:
• Minimal infrared (thermal) radiation in the beam.Environmental Safety:
• Mercury-free.Wavelength Specificity:
• Emits narrow-band light, reducing unnecessary side reactions or heating.9.2 Design Trade-offs and Considerations

Ko da yake yana da ƙarfi dangane da girmansa, jimillar fitar da ultraviolet na LED ɗaya ya yi ƙasa da na fitilun gargajiya. Don isa daidai da jimillar hasken da ake buƙata, galibi ana buƙatar jerin LED, wanda ke haifar da ƙalubalen ƙira a cikin sarrafa zafi, tuƙi na wutar lantarki, da daidaiton haske. Farashin farko na kayan aikin kowane raka'a na haske na iya zama mafi girma, amma galibi ana biya wannan ta hanyar ceton makamashi, kulawa, da tsawon rayuwar tsarin.

10. Frequently Asked Questions (FAQ)

10.1 Menene Shawararriyar Ƙarfin Aiki?

Datasheet yana siffanta na'urar a 20mA, wanda ke da mahimmanci kuma abin dogaro na aiki. Ana iya tuƙi shi zuwa cikakkiyar ƙimarsa na 40mA, amma wannan zai ƙara zafin jiki, yana iya rage tsawon rayuwa da rage inganci (lumens kowace watt). Kafin aiki sama da 20mA, ana buƙatar cikakken bincike na ƙira na zafi.

10.2 Zan iya tuƙa wannan LED kai tsaye tare da wutar lantarki ta dabaru ta 3.3V ko 5V?

Ba za a iya tuƙa kai tsaye ba. Kewayon ƙarfin lantarki na gaba yana daga 2.8V zuwa 4.0V. Za a iya amfani da madaidaicin resistor na jerin tare da wutar lantarki 5V don iyakance halin yanzu. Don wutar lantarki 3.3V, idan Vf na LED yana cikin babban ƙarshen (misali 3.6V-4.0V), bazai sami isasshen ƙarfin lantarki ba, a lokacin ana buƙatar mai jujjuyawar haɓakawa ko ƙayyadadden LED drive IC. Don mafi kyawun aiki da rayuwa, yakamata a koyaushe a yi amfani da madaidaicin da'irar halin yanzu.

10.3 Ta yaya ake fassara lambobin rarrabuwa akan jakar?

Lambar binne ita ce haɗin haruffa da lambobi (misali V2R5P3N1), wanda ke nuna ƙungiyoyin aikin ƙarfin lantarki na gaba (V), ƙarfin haske (R), da tsayin tsayin kololuwa (P). Don sanin takamaiman kewayon kowane siga na wannan rukunin kayan aikin ku, duba teburin lambar binne a cikin Sashe na 3.

10.4 Shin ake bukatar kariyar ido?

UV-A radiation (315-400nm) ba ya haifar da lahani nan take kamar UV-B ko UV-C, amma bayyanawa na dogon lokaci ko ƙarfi zai iya haifar da lahani ga idanu (photokeratitis) da fata (tsufa da wuri, ƙara haɗarin ciwon daji). Lokacin amfani da ko gwada waɗannan LED, tabbatar da amfani da kayan kariya na mutum (PPE) masu dacewa, kamar tabarau ko abin rufe fuska masu hana UV.

Ee.11. Misalin aikace-aikace na ainihi

Yanayi: Ƙira ƙaramin tushen haske mai ɗaukar hoto na ultraviolet don ƙarfafa mannewa.

Da'irar tuƙi:

1. Use a constant-current LED driver IC capable of supplying 20mA from a lithium-ion battery (nominal 3.7V). This driver will compensate for the battery voltage drop over time.Thermal Design:
2. Mount the LED on a small, dedicated Metal Core PCB (MCPCB) star board. Then connect this MCPCB to the device's aluminum housing, which acts as a heat sink.Optics:
3. A simple quartz glass window protects the LED. For a more focused beam, a small collimating lens made of UV-transparent material can be added.Control:
4. Include a momentary switch and a timer circuit to control exposure time, ensuring consistent curing and preventing overheating from continuous operation.Technical Principles and Trends

12.1 Ayyukan Ka'ida

Ayyukan ka'ida na LED na UV daidai yake da na LED na haske mai gani: hasken lantarki a cikin haɗin p-n na semiconductor. Lokacin da ake amfani da ƙarfin lantarki mai kyau, electrons da ramuka suna haɗuwa a yankin aiki (don wannan tsawon raƙuman, yawanci ana yin shi da aluminum gallium nitride - AlGaN). Makamashin da aka saki yayin haɗuwar yana fitar da shi a cikin nau'in photons. Takamaiman tsawon raƙuman haske (launi) yana ƙayyade ta hanyar makamashin tazarar band na kayan semiconductor. Tazarar band mai kusan 3.4 eV tana samar da photons kusan 365nm (UV-A).

12.2 Trends na Masana'antu

Kasuwar LED na UV tana motsawa ta wasu mahimman abubuwan da ke faruwa:

Ƙarfin fitarwa da ingantaccen aiki suna ci gaba da haɓakawa:

• Ci gaba da ingantattun ci gaban epitaxial da ƙira na guntu suna haɓaka mafi girman juzu'in radiation da ingantaccen canjin lantarki zuwa haske, yana ba da damar samun tsarin da ya fi ƙarfi da kuma ƙanƙanta.Wavelengths shorter:
• Extensive R&D efforts are focused on developing efficient UV-B and UV-C LEDs (down to 250nm) for disinfection, water purification, and medical treatments, challenging traditional mercury lamps in new markets.Cost reduction:
• Economies of scale and improvements in manufacturing processes are steadily reducing the cost per milliwatt of UV output, accelerating adoption across industries.System integration:
• Trends include integrating drivers, sensors, and multiple LED chips into smart, modular UV emitter packages for easier design-in and more controlled application.Trends include integrating drivers, sensors, and multiple LED chips into smart, modular UV emitter packages for easier design-in and more controlled application.