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Bayanin Fasaha na LED SMD LTST-N683GBEW - LED Mai Launuka Da Yawa (Ja/Kore/Shuɗi) - 20mA/30mA Na Gaba - 80mW Watsawar Wutar Lantarki - Takardun Fasaha na Hausa

Cikakken bayanin fasaha na LED SMD LTST-N683GBEW, mai launuka da yawa (Ja, Kore, Shuɗi), halaye na lantarki/na gani, tsarin rarrabawa, girman fakitin, da jagororin aikace-aikace.
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Gida » Takaddun » Bayanin Fasaha na LED SMD LTST-N683GBEW - LED Mai Launuka Da Yawa (Ja/Kore/Shuɗi) - 20mA/30mA Na Gaba - 80mW Watsawar Wutar Lantarki - Takardun Fasaha na Hausa

1. Bayanin Samfur

Wannan takarda tana ba da cikakken bayanin fasaha na LTST-N683GBEW, wata LED na'urar da ake hawa a saman (SMD). An tsara wannan kayan don haɗa allon da'ira da aka buga (PCB) ta atomatik kuma ya dace da aikace-aikacen da ke da ƙarancin sarari. Fakitin LED ne mai launuka da yawa wanda ya ƙunshi guntuwar LED Ja, Kore, da Shuɗi daban-daban a cikin gida ɗaya, wanda ke ba da damar nuna launi iri-iri ko aikace-aikacen haɗa launuka.

1.1 Siffofi

1.2 Aikace-aikace

An tsara LTST-N683GBEW don ɗimbin kayan lantarki inda ake buƙatar ingantaccen nuni na yanayi mai launuka da yawa a cikin tsari mai ƙarancin girma. Sashen aikace-aikace na yau da kullun sun haɗa da:

2. Ma'auni na Fasaha: Cikakken Fassarar Manufa

Wannan sashe yana ba da cikakken bincike na haƙiƙa game da mahimman ma'auni na aikin LED kamar yadda aka ayyana a cikin takardar bayani.

2.1 Matsakaicin Matsakaicin Ƙimar

Waɗannan ƙimar suna ayyana iyakokin da za su iya haifar da lalacewa na dindindin ga na'urar. Ba a ba da garantin aiki a ƙarƙashin waɗannan sharuɗɗan ba kuma ya kamata a guji su a cikin ƙirar da'ira.

2.2 Halaye na Lantarki & Na Gani

Waɗannan su ne ma'auni na aikin yau da kullun da aka auna a yanayin yanayi na 25°C da ƙarfin gaba na 20mA, sai dai idan an faɗi.

. Binning System Explanation

To ensure color and brightness consistency in production, LEDs are sorted into "bins" based on measured parameters. The LTST-N683GBEW uses a two-dimensional binning system for Luminous Intensity and Dominant Wavelength.

.1 Luminous Intensity (IV) Binning

Each color has specific intensity bins with an 11% tolerance on each bin.

.2 Dominant Wavelength (λd) Binning

Each color has specific wavelength bins with a +/- 1nm tolerance.

.3 Combined Bin Code on Tag

The datasheet provides a cross-reference table that combines intensity and (for Blue/Green) wavelength bins into a single alphanumeric "Bin Code on Tag." This code, printed on the product reel or packaging, allows manufacturers to select LEDs with tightly matched performance characteristics for their application. For example, code "C4" corresponds to a Blue LED from intensity bin T1, a Green LED from intensity bin V2, and a Red LED from intensity bin T2.

. Performance Curve Analysis

While specific graphical data is referenced in the datasheet (e.g., Fig.1, Fig.6), typical curves for such LEDs would include:

. Mechanical & Package Information

.1 Package Dimensions and Pin Assignment

The LED uses a standard SMD package. Key dimensional tolerances are ±0.2 mm unless otherwise noted. The pin assignment for the multi-color package is clearly defined:

Critical Design Note:The common cathode configuration is typical for such packages, but the datasheet must be consulted for the exact schematic. Each anode must be driven independently with its own current-limiting resistor or constant-current driver.

.2 Recommended PCB Attachment Pad

A land pattern (footprint) diagram is provided to ensure proper solder joint formation and mechanical stability during and after reflow soldering. Adhering to this recommended pattern is essential for reliable assembly.

. Soldering & Assembly Guidelines

.1 IR Reflow Soldering Profile

The datasheet includes a suggested IR reflow profile compliant with J-STD-020B for lead-free (Pb-free) solder processes. This profile typically defines key parameters:

.2 Cleaning

If post-solder cleaning is necessary, the only recommended agents are ethyl alcohol or isopropyl alcohol. The LED should be immersed at normal room temperature for less than one minute. Unspecified chemical cleaners may damage the LED's plastic lens or package.

.3 Storage Conditions

To preserve solderability and device integrity, the LEDs should be stored in their sealed, moisture-barrier bags at conditions of 30°C or less and 70% relative humidity or less. Once the bag is opened, the "floor life" based on the JEDEC MSL 3 rating applies.

. Packaging and Ordering Information

.1 Tape and Reel Specifications

The product is supplied in industry-standard embossed carrier tape for automated handling.

. Application Suggestions & Design Considerations

.1 Typical Application Circuits

Each LED chip (Red, Green, Blue) requires an independent current-limiting circuit. The simplest method is a series resistor for each anode, calculated as R = (Vsupply- VF) / IF. For better consistency across temperature and unit-to-unit VFvariation, a constant current driver (e.g., a dedicated LED driver IC or transistor-based circuit) is recommended, especially for the higher-current Red LED or if precise brightness matching is critical.

.2 Thermal Management

Although power dissipation is low, proper thermal design extends LED life and maintains stable light output. Ensure the PCB pad design provides adequate thermal relief according to the datasheet recommendation. Avoid operating the LED at absolute maximum ratings for extended periods.

.3 Optical Design

The 120-degree viewing angle provides wide visibility. For applications requiring a more focused beam, external secondary optics (lenses) can be used. The diffused lens helps in achieving a uniform appearance when viewed off-axis.

. Technical Comparison & Differentiation

The primary differentiating factor of the LTST-N683GBEW is its integration of three distinct LED chips (Red, Green, Blue) into a single, compact SMD package. This offers significant advantages over using three separate single-color LEDs:

. Frequently Asked Questions (Based on Technical Parameters)

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

A: No. The power dissipation ratings (80/72 mW) and thermal design of the package must be considered. Driving all three at max current (20mA Blue/Green + 30mA Red) simultaneously may exceed the total thermal capacity of the package if the forward voltages are at the high end of their range. Derating or pulsed operation is advised for full-color, full-brightness use.

Q: What does the Bin Code on the tag mean for my design?

A: For applications where color or brightness consistency is critical (e.g., multi-device panels, displays), you should specify and use LEDs from the same bin code. This ensures minimal variation from one unit to the next. For less critical status indicators, any standard bin may be acceptable.

Q: Can I use this LED for reverse voltage protection or as a rectifier?

A: Absolutely not. The datasheet explicitly states the device is not designed for reverse operation. Applying a reverse bias exceeding 5V may cause immediate failure.

Q: How do I achieve white light or other colors with this LED?

A: This is an RGB LED. By independently controlling the intensity of the Red, Green, and Blue chips using PWM (Pulse Width Modulation) or analog dimming, a wide range of colors can be created through additive color mixing. For example, activating Red and Green at similar intensities yields yellow, while activating all three at full intensity produces a form of white light (the quality of white depends on the specific spectral output of each chip).

. Practical Design and Usage Case

Case: Designing a Multi-Status Indicator for a Network Switch

A designer needs three statuses: Power (Green), Activity (Flashing Green), and Fault (Red). A fourth "Standby" state (Blue) is also desired. Using a single LTST-N683GBEW simplifies the design:

  1. PCB Layout:Only one component footprint is needed, saving space.
  2. Microcontroller Interface:Three GPIO pins from the system's microcontroller are connected to the Red, Green, and Blue anodes (each via a suitable current-limiting resistor, e.g., 150Ω for Green/Blue @ 3.3V, 75Ω for Red @ 3.3V). The common cathode is connected to ground.
  3. Firmware Control:The MCU firmware can easily set the states:
    • Power ON: Green LED pin = HIGH.
    • Activity: Toggle Green LED pin with a timer.
    • Fault: Red LED pin = HIGH.
    • Standby: Blue LED pin = HIGH.
    • Combined states (e.g., Fault during activity) are also possible by driving multiple pins.
  4. Manufacturing:The automated pick-and-place machine handles one part instead of three, increasing assembly speed and reducing potential placement errors.

. Principle Introduction

Light Emitting Diodes (LEDs) are semiconductor devices that emit light when an electric current passes through them. This phenomenon, called electroluminescence, occurs when electrons recombine with electron holes within the device, releasing energy in the form of photons. The color of the emitted light is determined by the energy band gap of the semiconductor material used:

The LTST-N683GBEW integrates three such semiconductor junctions into a single package with a common cathode connection and a diffused plastic lens that shapes the light output and provides mechanical and environmental protection.

. Development Trends

The evolution of multi-chip SMD LEDs like the LTST-N683GBEW follows broader trends in optoelectronics:

These trends aim to provide designers with more versatile, efficient, and reliable lighting solutions for an expanding range of applications.

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.