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Takardun Bayani na LED LTS-3401LJF - Tsawon Lamba 0.8-inch - Kalar Yellow Orange - Ƙarfin Wutar Gaba 2.6V - Ragewar Wutar 70mW - Takardun Fasaha na Turanci

Takardun bayani na fasaha don LTS-3401LJF, nuni mai lamba daya 0.8-inch, mai karancin wutar lantarki, nuni na LED mai sassa bakwai na AlInGaP mai fitar da haske rawaya-lemu, mai cikakken bayani na lantarki, na gani, da na injiniya.
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Gida » Takaddun » Takardun Bayani na LED LTS-3401LJF - Tsawon Lamba 0.8-inch - Kalar Yellow Orange - Ƙarfin Wutar Gaba 2.6V - Ragewar Wutar 70mW - Takardun Fasaha na Turanci

Teburin Abubuwan Ciki

1. Bayyani Game da Samfur

LTS-3401LJF nuni ne na LED mai lamba daya, mai sassa bakwai, wanda aka tsara don aikace-aikacen da ke buƙatar nuna lambobi a sarari da ƙarancin wutar lantarki. Fasahar sa ta asali ta dogara ne akan kayan semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP), wanda aka sani da samar da haske mai inganci a cikin bakan launin amber zuwa ja-lemu. Wannan na'urar musamman tana fitar da launin rawaya-lemu. Nuni yana da fuskar launin toka da sassa farare, wanda ke haɓaka bambanci da karantawa a ƙarƙashin yanayin haske daban-daban. Babban manufar ƙira na wannan sashi shine ƙarancin amfani da wutar lantarki, kyakkyawan bayyanar haruffa tare da haske mai daidaitaccen sashi, da amincin ƙwaƙƙwaran jiki, wanda ya sa ya dace da nau'ikan na'urorin lantarki na mabukaci da na masana'antu inda ake buƙatar gabatar da bayanan lambobi a sarari da inganci.

1.1 Fa'idodi na Asali

2. Zurfin Binciken Ƙayyadaddun Fasaha

Wannan sashe yana ba da cikakken bincike na gaskiya game da mahimman ma'auni na lantarki, na gani, da na jiki da aka ayyana a cikin takardun bayani.

2.1 Halayen Lantarki

Ma'auni na lantarki suna ayyana iyakokin aiki da yanayi don nuni.

2.2 Halayen Gani

Ma'auni na gani suna ƙididdige fitowar haske da kaddarorin launi na nuni.

. Binning System Explanation

The datasheet indicates that the devices are \"Categorized for Luminous Intensity.\" This refers to a post-production sorting (binning) process.

. Performance Curve Analysis

While the provided PDF excerpt mentions \"Typical Electrical / Optical Characteristic Curves,\" the specific graphs are not included in the text. Typically, such curves would include:

Designers should always refer to the complete datasheet with graphs to understand these relationships fully for robust circuit design.

. Mechanical and Package Information

.1 Physical Dimensions

The device is described as a 0.8-inch digit height display, which corresponds to 20.32 mm for the height of the numeric character itself. The package dimensions drawing (referenced but not detailed in text) would specify the overall length, width, and height of the plastic package, lead spacing, and segment placement. Tolerances are typically ±0.25 mm unless otherwise noted. Precise mechanical drawings are essential for PCB footprint design and ensuring proper fit within an enclosure.

.2 Pin Configuration and Internal Circuit

The LTS-3401LJF is acommon anodedisplay. This means the anodes of all LED segments (and the decimal points) are connected internally and brought out to common pins (4, 6, 12, 17). Individual segment cathodes (A-G, and left/right decimal points) have their own pins. To illuminate a segment, its corresponding cathode pin must be driven low (connected to ground or a current sink) while the common anode pin is held high (connected to VCCthrough a current-limiting resistor). The pinout table is critical for correct PCB layout and software drive routine development. Several pins (1, 8, 9, 16, 18) are listed as \"NO PIN,\" meaning they are physically present but not electrically connected (N/C).

. Soldering and Assembly Guidelines

The datasheet provides a key soldering parameter: the package can withstand a solder temperature of 260°C for 3 seconds, measured 1/16 inch (1.6 mm) below the seating plane. This is a standard reference for wave soldering. For reflow soldering, a standard lead-free profile with a peak temperature around 260°C would be applicable, but the time above liquidus should be controlled. It is recommended to follow standard JEDEC/IPC guidelines for handling moisture-sensitive devices (if applicable) and to avoid mechanical stress on the leads during assembly. Storage should be within the specified -35°C to +85°C temperature range in a dry environment.

. Application Recommendations

.1 Typical Application Scenarios

.2 Design Considerations

. Technical Comparison and Differentiation

The primary differentiator of the LTS-3401LJF is its use ofAlInGaPtechnology for yellow-orange emission. Compared to older technologies like standard GaAsP (Gallium Arsenide Phosphide) LEDs, AlInGaP offers significantly higher luminous efficiency, resulting in brighter output for the same drive current or lower power consumption for the same brightness. It also generally provides better stability and color consistency over temperature and lifetime. Compared to white LEDs (which are typically blue LEDs with a phosphor coating), this monochromatic device offers higher efficacy for applications where a specific amber/orange color is desired, such as in low-light or night-vision compatible settings.

. Frequently Asked Questions (Based on Technical Parameters)

. Design and Usage Case Study

Scenario: Designing a Simple Digital Voltmeter Readout.

A designer is creating a 3-digit DC voltmeter display using the LTS-3401LJF. They use a microcontroller with an analog-to-digital converter (ADC) to measure voltage. Three displays are used. The microcontroller pins are insufficient to drive all segments (3 digits * 8 segments = 24 lines) directly, so a multiplexing design is chosen. A single 8-bit shift register with constant current sink outputs (e.g., 74HC595 with external transistors or a dedicated LED driver IC) is used to control all segment cathodes (A-G, DP) for all digits. Three microcontroller I/O pins are used to selectively enable the common anode of each digit via small PNP transistors or MOSFETs. The software rapidly cycles through enabling each digit (1, 2, 3) while shifting out the corresponding segment pattern for that digit to the shift register. The persistence of vision makes all digits appear continuously lit. The designer calculates current-limiting resistors for the common anode lines based on a 5V supply, a VFof 2.6V, and a desired average segment current of 10mA, adjusting for the 1/3 duty cycle of multiplexing three digits.

. Technology Principle Introduction

The LTS-3401LJF is based on the electroluminescence principle in a semiconductor PN junction made of AlInGaP (Aluminum Indium Gallium Phosphide). When a forward voltage is applied, electrons from the N-type material recombine with holes from the P-type material in the active region, releasing energy in the form of photons (light). The specific composition of the AlInGaP alloy determines the bandgap energy of the semiconductor, which directly dictates the wavelength (color) of the emitted light—in this case, yellow-orange (~605 nm dominant wavelength). The use of a non-transparent GaAs substrate helps improve contrast by absorbing stray light, contributing to the display's excellent character appearance. The seven individual segments are formed by multiple tiny AlInGaP LED chips arranged in a pattern, each electrically isolated and addressable.

. Technology Trends

While seven-segment LED displays remain a robust and cost-effective solution for numeric readouts, the broader display technology landscape is evolving. There is a trend towards higher integration, such as displays with built-in controllers (I2C or SPI interface) that drastically reduce the required microcontroller I/O and software complexity. In terms of materials, AlInGaP technology is mature and highly efficient for amber/red colors. For full-color or white applications, InGaN (Indium Gallium Nitride) based blue/green/white LEDs dominate. Future trends may include even lower operating voltages, higher efficiency (more light per watt), and the integration of displays into flexible or transparent substrates, although these are more relevant to newer display types than traditional segmented numeric devices. The core advantages of LEDs—reliability, longevity, and low-voltage operation—ensure their continued use in applications where these factors are paramount.

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.