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LTST-008GEBW LED Datasheet - Hausa - LED Mai Haɗa Launuka Uku - Farin Lensa Mai Watsawa

Cikakken bayanin fasaha na LED na LTST-008GEBW wanda ke da farin lensa mai watsawa, guntu na RGB guda uku, da kuma ƙa'idar EIA. Ya dace da na'urorin sadarwa, ofis, da aikace-aikacen nuni.
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Murfin Takardar PDF - LTST-008GEBW LED Datasheet - Hausa - LED Mai Haɗa Launuka Uku - Farin Lensa Mai Watsawa

1. Bayanin Samfur

LTST-008GEBW na'urar LED ce da ake haɗawa ta fuska (SMD) wacce aka ƙera don haɗa allon da'ira (PCB) ta atomatik. Tana da farin lensa mai watsawa kuma tana haɗa guntu na'urori masu haɗa wutar lantarki guda uku daban-daban a cikin kunshi ɗaya: Kore (InGaN), Ja (AlInGaP), da Shudi (InGaN). Wannan tsari yana ba da damar nuna launuka daban-daban da aikace-aikacen hasken baya. Ana ajiye na'urar a cikin kunshin ƙa'idar EIA na masana'antu, yana tabbatar da dacewa da kewayon na'urorin zaɓi da haɗawa ta atomatik da kayan aikin gyarawa.

1.1 Siffofi

1.2 Aikace-aikace

Wannan LED ya dace da babban kewayon kayan aikin lantarki inda ake buƙatar tanadin sarari, ingantaccen nuni, ko hasken baya mai sauƙi. Manyan wuraren aikace-aikace sun haɗa da:

2. Girman Kunshin da Tsarin Ƙafar

Zane na inji na LTST-008GEBW ya yi daidai da madaidaicin girman kunshin EIA. Duk ƙayyadaddun girma suna cikin milimita, tare da juzu'i na gabaɗaya na ±0.1 mm sai dai idan an lura da haka. Tsarin ƙafar don haɗaɗɗun guntu na RGB shine kamar haka:

Wannan pinout yana da mahimmanci don ingantaccen ƙirar da'ira kuma dole ne a bi shi don sarrafa launi ɗaya ɗaya daidai.

3. Ƙimar da Halaye

3.1 Ƙimar Madaidaiciya Mafi Girma

Ƙimar madaidaiciya mafi girma tana bayyana iyakokin da za su iya haifar da lalacewa na dindindin ga na'urar. An ƙayyade waɗannan ƙimar a yanayin zafin jiki (Ta) na 25°C.

Ba a ba da shawarar aiki a waje da waɗannan kewayon ba kuma yana iya shafar aminci da tsawon rayuwa.

3.2 Shawarar Tsarin IR Reflow

Don hanyoyin gyarar da ba su da gubar, shawarar bayanin martaba na IR reflow ya kamata ya bi ƙa'idar J-STD-020B. Bayanin martaba yawanci ya haɗa da yankin dumama, yankin jiƙa, yankin reflow tare da madaidaicin zafin jiki, da yankin sanyaya. Yin bin wannan bayanin martaba yana da mahimmanci don hana girgizar zafi da tabbatar da haɗin gyarar amintacce ba tare da lalata kunshin LED ko mutuwar ciki ba.

3.3 Halayen Lantarki da Na'ura mai gani

Ana auna waɗannan halaye a Ta=25°C ƙarƙashin ƙayyadaddun yanayin gwaji kuma suna wakiltar madaidaicin aikin na'urar.

. Bin Code System

The LTST-008GEBW is classified using a bin code system to ensure consistency in luminous output and color coordinates for applications requiring uniformity.

.1 Luminous Flux (IV) Rank

LEDs are sorted into bins based on their measured luminous flux at specified drive currents. The bin codes (H2, J1, J2, K1) define ranges from minimum to maximum luminous flux values. The tolerance on each luminous intensity bin is +/- 11%.

.2 Color Coordinate (CIE) Rank

Color consistency is managed through a detailed CIE 1931 chromaticity coordinate binning system. The datasheet provides a comprehensive table and a chromaticity diagram plotting various bin codes (e.g., H2-H7, J2-J7, K2-K7, etc.). Each bin is defined by a quadrilateral area on the CIE chart specified by four (x, y) coordinate points. The tolerance for each hue bin (x, y) is +/- 0.01. This precise binning allows designers to select LEDs with nearly identical color points for multi-LED arrays or status indicators where color matching is critical.

. Typical Performance Curves

The datasheet includes a section for typical performance curves, which graphically represent the relationship between various parameters under different conditions. These curves are essential for in-depth design analysis. While the specific curves are not detailed in the provided text, they typically include:

Consulting these curves helps optimize drive circuitry, manage thermal performance, and predict behavior under non-standard operating conditions.

. User Guide and Assembly Information

.1 Cleaning Instructions

Post-assembly cleaning must be performed with care. Only use ethyl alcohol or isopropyl alcohol at normal room temperature. The LED should be immersed for less than one minute. The use of unspecified chemical cleaners can damage the LED package material, epoxy lens, or internal connections.

.2 Recommended PCB Land Pattern

A recommended footprint (land pattern) for the PCB is provided to ensure proper solder joint formation, mechanical stability, and thermal management during reflow. Following this pattern is crucial for achieving reliable surface mount attachment.

.3 Tape and Reel Packaging Dimensions

The device is supplied in a standard 12mm wide embossed carrier tape wound onto 7-inch (178mm) diameter reels. The datasheet includes detailed dimensions of the tape pockets, cover tape, and reel hub to facilitate compatibility with automated assembly equipment feeders.

. Design Considerations and Application Notes

.1 Current Limiting

As with all LEDs, the forward current must be limited using a series resistor or a constant-current driver. The value should be calculated based on the supply voltage, the forward voltage (VF) of the specific color chip at the desired current, and the maximum DC forward current rating (30mA). Operating at or below the typical test currents (25mA Green, 20mA Red, 15mA Blue) is recommended for long-term reliability.

.2 Thermal Management

While the power dissipation is relatively low, proper thermal design on the PCB is important, especially in high ambient temperature environments or when driving multiple LEDs. The PCB's copper area acts as a heat sink. Ensuring a good thermal path from the LED's solder pads to a larger copper plane can help maintain lower junction temperatures, preserving luminous output and operational life.

.3 Optical Design with Diffused Lens

The white diffused lens provides a wide, uniform viewing angle (130° typical) by scattering the light from the small, bright chip sources. This makes the LED ideal for status indicators that need to be visible from a wide range of angles. It reduces glare and hotspots, creating a soft, even illumination suitable for panel backlighting. Designers should account for this diffusion when modeling light output for their specific application.

.4 Independent Color Control

With separate anode/cathode pairs for each color chip, the LTST-008GEBW offers full independent control. This allows for static indication of three different states (Green, Red, Blue) or, by using pulse-width modulation (PWM) on the individual channels, the creation of a multitude of mixed colors. Careful circuit design is needed to manage three separate current-limiting paths.

. Comparison and Selection Guidance

The LTST-008GEBW occupies a specific niche. Key differentiators include its integrated RGB capability in a single, standard SMD package and its diffused lens for wide-angle viewing. When selecting an LED, engineers should compare:

. Frequently Asked Questions (FAQ)

Q: Can I drive all three colors simultaneously at their maximum DC current?

A: No. The absolute maximum power dissipation for the package must not be exceeded. Simultaneously driving Green (102mW), Red (72mW), and Blue (102mW) at their max ratings would far exceed the package's thermal capacity. Derate currents or use multiplexing/PWM to manage total power.

Q: What is the purpose of the JEDEC Level 3 preconditioning?

A: It indicates the device's moisture sensitivity. Level 3 means the package can be exposed to factory floor conditions (≤30°C/60% RH) for up to 168 hours before it must be baked prior to reflow soldering to prevent "popcorning" (package cracking due to vaporized moisture).

Q: How do I interpret the CIE bin code table?

A: Each bin code (e.g., H2) defines a small quadrilateral region on the CIE 1931 chromaticity diagram. The four (x,y) coordinate pairs in the table are the corners of that region. An LED whose measured color coordinates fall within that region is assigned that bin code.

Q: Is a reverse protection diode necessary?

A> While the device can withstand a 5V reverse voltage for test purposes, it is not designed for operation in reverse bias. In circuits where reverse voltage transients are possible (e.g., inductive loads, hot-plugging), external protection such as a series diode or a TVS diode across the LED is strongly recommended to prevent damage.

. Technical Principles and Trends

.1 Operating Principle

Light emission in LEDs is based on electroluminescence in semiconductor materials. When a forward voltage is applied across the p-n junction, electrons and holes recombine, releasing energy in the form of photons. The specific semiconductor compounds (InGaN for green/blue, AlInGaP for red) determine the bandgap energy and thus the wavelength (color) of the emitted light. The white diffused lens is typically made of epoxy or silicone with scattering particles (e.g., titanium dioxide) added to diffuse the point-source light from the chip.

.2 Industry Trends

The SMD LED market continues to evolve towards higher efficiency (more lumens per watt), improved color rendering, and greater miniaturization. Multi-chip packages like the LTST-008GEBW represent a trend toward functional integration, reducing component count and assembly complexity. Furthermore, there is a growing emphasis on tighter binning tolerances for both flux and color to meet the demands of applications like full-color displays and architectural lighting where consistency is paramount. The drive for higher reliability in automotive and industrial applications also pushes advancements in package materials and thermal performance.

Kalmomin Ƙayyadaddun LED

Cikakken bayanin kalmomin fasaha na LED

Aikin Hasken Wutar Lantarki

Kalma Naúrar/Wakilci Bayanin Sauri Me yasa yake da muhimmanci
Ingancin Hasken Wuta lm/W (lumen kowace watt) Fitowar haske kowace watt na wutar lantarki, mafi girma yana nufin mafi ingancin kuzari. Kai tsaye yana ƙayyade matakin ingancin kuzari da farashin wutar lantarki.
Gudun Hasken Wuta lm (lumen) Jimillar hasken da tushe ke fitarwa, ana kiransa "haske". Yana ƙayyade ko hasken yana da haske sosai.
Kusurwar Dubawa ° (digiri), misali 120° Kusurwar da ƙarfin haske ya ragu zuwa rabi, yana ƙayyade faɗin haske. Yana shafar kewar haskakawa da daidaito.
Zafin Launi (CCT) K (Kelvin), misali 2700K/6500K Zafi/sanyin haske, ƙananan ƙimomi rawaya/zafi, mafi girma fari/sanyi. Yana ƙayyade yanayin haskakawa da yanayin da suka dace.
CI / Ra Ba naúrar, 0–100 Ikon ba da launukan abubuwa daidai, Ra≥80 yana da kyau. Yana shafar sahihancin launi, ana amfani dashi a wurare masu buƙatu kamar shaguna, gidajen tarihi.
SDCM Matakan ellipse MacAdam, misali "5-mataki" Ma'aunin daidaiton launi, ƙananan matakai suna nufin mafi daidaiton launi. Yana tabbatar da daidaiton launi a cikin rukunin LED iri ɗaya.
Matsakaicin Tsawon Raɗaɗin Hasken nm (nanomita), misali 620nm (ja) Tsawon raɗaɗin haske daidai da launin LED masu launi. Yana ƙayyade launin ja, rawaya, kore LED masu launi ɗaya.
Rarraba Bakan Hasken Layin tsawon raɗaɗi da ƙarfi Yana nuna rarraba ƙarfi a cikin tsawon raɗaɗin haske. Yana shafar ba da launi da ingancin launi.

Ma'auni na Lantarki

Kalma Alamar Bayanin Sauri Abubuwan ƙira
Ƙarfin lantarki na gaba Vf Mafi ƙarancin ƙarfin lantarki don kunna LED, kamar "maƙallan farawa". Ƙarfin lantarki na injin dole ya zama ≥Vf, ƙarfin lantarki yana ƙara don LED a jere.
Ƙarfin lantarki na gaba If Ƙimar ƙarfin lantarki don aikin LED na yau da kullun. Yawanci tuƙi mai ƙarfi akai-akai, ƙarfin lantarki yana ƙayyade haske da tsawon rai.
Matsakaicin Ƙarfin lantarki na bugun jini Ifp Matsakaicin ƙarfin lantarki mai jurewa na ɗan lokaci, ana amfani dashi don duhu ko walƙiya. Fadin bugun jini da sake zagayowar aiki dole ne a sarrafa su sosai don guje wa lalacewa.
Ƙarfin lantarki na baya Vr Matsakaicin ƙarfin lantarki na baya da LED zai iya jurewa, wanda ya wuce zai iya haifar da rushewa. Dangane dole ne ya hana haɗin baya ko ƙarfin lantarki.
Juriya na zafi Rth (°C/W) Juriya ga canja wurin zafi daga guntu zuwa solder, ƙasa yana da kyau. Babban juriya na zafi yana buƙatar zubar da zafi mai ƙarfi.
Rigakafin ESD V (HBM), misali 1000V Ikon jurewa zubar da wutar lantarki, mafi girma yana nufin ƙasa mai rauni. Ana buƙatar matakan hana wutar lantarki a cikin samarwa, musamman ga LED masu hankali.

Gudanar da Zafi & Amincewa

Kalma Ma'aunin maɓalli Bayanin Sauri Tasiri
Zazzabin Haɗin gwiwa Tj (°C) Ainihin yanayin aiki a cikin guntun LED. Kowane raguwa 10°C na iya ninka tsawon rai; yayi yawa yana haifar da lalacewar haske, canjin launi.
Ragewar Lumen L70 / L80 (sa'o'i) Lokacin da haske ya ragu zuwa 70% ko 80% na farko. Kai tsaye yana ayyana "tsawon sabis" na LED.
Kula da Lumen % (misali 70%) Kashi na hasken da aka riƙe bayan lokaci. Yana nuna riƙon haske akan amfani na dogon lokaci.
Canjin Launi Δu′v′ ko ellipse MacAdam Matsakaicin canjin launi yayin amfani. Yana shafar daidaiton launi a cikin yanayin haskakawa.
Tsufa na Zafi Lalacewar kayan aiki Lalacewa saboda yanayin zafi na dogon lokaci. Zai iya haifar da raguwar haske, canjin launi, ko gazawar buɗe kewaye.

Tufafi & Kayan Aiki

Kalma Nau'ikan gama gari Bayanin Sauri Siffofi & Aikace-aikace
Nau'in Kunshin EMC, PPA, Yumbu Kayan gida masu kare guntu, samar da hanyar sadarwa ta gani/zafi. EMC: juriya mai kyau na zafi, farashi mai rahusa; Yumbu: mafi kyawun zubar da zafi, tsawon rai.
Tsarin Guntu Gaba, Guntu Juyawa Tsarin na'urorin lantarki na guntu. Juyawar guntu: mafi kyawun zubar da zafi, inganci mafi girma, don ƙarfi mai ƙarfi.
Rufin Phosphor YAG, Silicate, Nitride Yana rufe guntu shuɗi, yana canza wasu zuwa rawaya/ja, yana haɗa su zuwa fari. Phosphor daban-daban suna shafar inganci, CCT, da CRI.
Ruwan tabarau/Optics Lefi, Microlens, TIR Tsarin gani a saman yana sarrafa rarraba haske. Yana ƙayyade kusurwar dubawa da layin rarraba haske.

Kula da Inganci & Rarraba

Kalma Abun rarraba Bayanin Sauri Manufa
Kwalin Gudun Hasken Lambar misali 2G, 2H An tattara su ta hanyar haske, kowace ƙungiya tana da ƙananan/matsakaicin ƙimar lumen. Yana tabbatar da daidaiton haske a cikin jeri ɗaya.
Kwalin Ƙarfin lantarki Lambar misali 6W, 6X An tattara su ta hanyar kewayon ƙarfin lantarki na gaba. Yana sauƙaƙe daidaitawar tuƙi, yana inganta ingancin tsarin.
Kwalin Launi Ellipse MacAdam 5-mataki An tattara su ta hanyar daidaitattun launi, yana tabbatar da ƙuntataccen kewayon. Yana ba da garantin daidaiton launi, yana guje wa launi mara daidaituwa a cikin kayan aikin.
Kwalin CCT 2700K, 3000K da sauransu An tattara su ta hanyar CCT, kowanne yana da madaidaicin kewayon daidaitawa. Yana cika buƙatun CCT na yanayi daban-daban.

Gwaji & Takaddun Shaida

Kalma Matsakaicin/Gwaji Bayanin Sauri Muhimmanci
LM-80 Gwajin kula da lumen Haskakawa na dogon lokaci a yanayin zafi akai-akai, yana rikodin lalacewar haske. Ana amfani dashi don kimanta rayuwar LED (tare da TM-21).
TM-21 Matsakaicin kimanta rayuwa Yana kimanta rayuwa a ƙarƙashin yanayi na ainihi bisa bayanan LM-80. Yana ba da hasashen kimiyya na rayuwa.
IESNA Ƙungiyar Injiniyoyin Haskakawa Yana rufe hanyoyin gwajin gani, lantarki, zafi. Tushen gwaji da masana'antu suka amince.
RoHS / REACH Tabbatarwar muhalli Yana tabbatar da babu abubuwa masu cutarwa (darma, mercury). Bukatar shiga kasuwa a duniya.
ENERGY STAR / DLC Tabbatarwar ingancin kuzari Tabbatarwar ingancin kuzari da aiki don samfuran haskakawa. Ana amfani dashi a cikin sayayyan gwamnati, shirye-shiryen tallafi, yana haɓaka gasa.