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Bayanin Fasaha na LTS-5325CKR-P LED Display - Tsayin Lamba 0.56-inch - Super Red - Farashin Gaba 2.6V - Ragewar Wutar Lantarki 70mW - Takardun Fasaha na Hausa

Cikakken bayanin fasaha na LTS-5325CKR-P, mai nuni na lamba daya na SMD LED mai tsayin 0.56-inch tare da guntu na AlInGaP Super Red, yana dauke da halaye na lantarki/na gani, girman fakitin, da jagororin gudanarwa.
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Teburin Abubuwan Ciki

1. Bayanin Samfur

LTS-5325CKR-P na'urar da aka tsara don zama nuni na lamba daya ta hanyar haɗawa da saman (SMD). Aikinta na farko shine samar da bayanan lambobi masu tsabta da bayyane a cikin aikace-aikacen lantarki daban-daban. Fasahar cibiyar tana amfani da AlInGaP (Aluminum Indium Gallium Phosphide) na saman da aka girma akan tushen GaAs don samar da fitarwa mai haske Super Red. Wannan tsarin kayan sananne ne saboda ingantaccen aiki da kyakkyawan haske a ƙananan igiyoyin tuƙi. Na'urar tana da fuskar launin toka tare da sassan fari, wanda ke haɓaka bambanci da inganta karantawa a ƙarƙashin yanayin haske daban-daban. An rarrabe shi don ƙarfin haske, yana tabbatar da daidaiton matakan haske a cikin rukunin samarwa, kuma an gina shi da kayan da ba su da gubar da suka dace da umarnin RoHS.

1.1 Siffofi da Fa'idodi Masu Muhimmanci

Nunin yana ba da fa'idodi daban-daban don haɗawa cikin ƙirar lantarki na zamani:

. Technical Specifications Deep Dive

This section provides a detailed, objective analysis of the device's electrical and optical parameters as defined in the datasheet.

.1 Absolute Maximum Ratings

These ratings define the stress limits beyond which permanent damage to the device may occur. Operation outside these limits is not advised.

.2 Electrical & Optical Characteristics (Ta=25°C)

These are the typical performance parameters under specified test conditions.

.3 Binning System Explanation

The datasheet states the device is \"categorized for luminous intensity.\" This implies a binning process where manufactured units are sorted based on their measured light output at a standard test current (likely 1mA or 10mA). Designers can specify a bin code to ensure all displays in an assembly have matched brightness, preventing uneven illumination. The specific bin code ranges and labels are not detailed in this excerpt but would typically be part of the ordering information.

. Performance Curve Analysis

While the specific graphs are not reproduced in text, the datasheet includes typical curves. Based on standard LED behavior and the provided parameters, these curves would typically illustrate:

. Mechanical & Package Information

.1 Package Dimensions

The device is housed in an SMD package. Key dimensional notes include: all dimensions are in millimeters with a general tolerance of ±0.25mm. Specific quality controls are noted, such as limits on foreign material (≤10 mil), ink contamination (≤20 mils), bubbles in segments (≤10 mil), bending (≤1% of reflector length), and plastic pin burr (max 0.14mm).

.2 Pin Connection and Circuit Diagram

The display has a common cathode configuration with two common cathode pins (Pin 3 and Pin 8). This configuration is often preferred in multiplexed driving schemes. The pinout is as follows: Pin 1 (Anode E), Pin 2 (Anode D), Pin 3 (Common Cathode), Pin 4 (Anode C), Pin 5 (Anode DP - Decimal Point), Pin 6 (Anode B), Pin 7 (Anode A), Pin 8 (Common Cathode), Pin 9 (Anode F), Pin 10 (Anode G). The internal circuit diagram shows the ten individual LED segments (a, b, c, d, e, f, g, and the right-hand decimal point DP) with their anodes connected to the respective pins and their cathodes tied together to the common cathode pins.

.3 Recommended Soldering Pattern

A land pattern (footprint) is provided for PCB design. Adhering to this pattern is essential for reliable solder joint formation, proper alignment, and thermal management during reflow.

. Soldering & Assembly Guidelines

.1 SMT Soldering Instructions

Critical instructions are provided to prevent damage during assembly:

.2 Moisture Sensitivity and Storage

The device is shipped in moisture-proof packaging. It must be stored at ≤30°C and ≤60% Relative Humidity (RH). Once the sealed bag is opened, the components begin to absorb moisture from the atmosphere. If they are not used immediately and are exposed to ambient conditions beyond the specified limits, they must be baked before reflow to prevent \"popcorning\" or delamination caused by rapid vapor expansion during soldering. Baking conditions are specified: 60°C for ≥48 hours when in reel, or 100°C for ≥4 hours / 125°C for ≥2 hours when in bulk. Baking should be performed only once.

. Packaging & Ordering Information

.1 Packing Specifications

The device is supplied on embossed carrier tape and reels, compatible with automated pick-and-place equipment. Key packing details include:

. Application Suggestions & Design Considerations

.1 Typical Application Scenarios

The LTS-5325CKR-P is well-suited for applications requiring a compact, reliable, and bright numeric display. Examples include:

.2 Design Considerations

. Technical Comparison & Differentiation

Compared to older technologies like standard GaP red LEDs, the AlInGaP-based LTS-5325CKR-P offers significantly higher luminous efficiency, resulting in brighter output at the same current or equivalent brightness at lower power. Compared to some white-light LED backlit LCDs, this direct LED segment display offers wider viewing angles, higher contrast, and better performance in bright ambient light. Its SMD package provides greater mechanical robustness and easier automated assembly than through-hole LED displays.

. Frequently Asked Questions (FAQ)

Q1: What is the difference between peak wavelength (639nm) and dominant wavelength (631nm)?

A1: Peak wavelength is the physical point of maximum spectral emission. Dominant wavelength is the perceptual \"color\" as seen by the human eye, calculated from the full spectrum. They often differ slightly.

Q2: Can I drive this display with a 3.3V microcontroller GPIO pin directly?

A2: Not directly. The GPIO pin must source current through a current-limiting resistor. With a 3.3V supply and a VFof 2.6V, the voltage drop across the resistor is only 0.7V. To achieve a 10mA current, you would need a 70Ω resistor (R = 0.7V / 0.01A). However, ensure the microcontroller pin can safely source 10mA continuously.

Q3: Why is the reverse current specification important if I should not apply reverse voltage?

A3: It is a quality and leakage test parameter. A high reverse current can indicate a defect in the LED chip junction. The specification assures the integrity of the device.

Q4: How do I interpret the \"2:1\" luminous intensity matching ratio?

A4: It means that within a single device, the measured intensity of the brightest segment should not be more than twice the intensity of the dimmest segment when tested under identical conditions (IF=1mA). This ensures visual uniformity.

. Practical Use Case Example

Scenario: Designing a simple digital timer display.

The timer needs to show minutes and seconds (four digits). Four LTS-5325CKR-P displays would be used. A microcontroller with sufficient I/O pins would be employed in a multiplexed driving scheme. All segment anodes for the same segment letter (e.g., all \"A\" segments) across the four digits would be connected together and driven by a single microcontroller pin via a current-limiting resistor. Each digit's common cathode would be connected to a separate microcontroller pin acting as a digit select switch. The microcontroller would rapidly cycle through illuminating one digit at a time (e.g., for 2.5ms each in a 10ms total cycle), relying on persistence of vision to make all digits appear lit simultaneously. This method drastically reduces the number of required driver pins from 40 (4 digits * 10 pins) to 14 (7 segment anodes + 1 DP + 4 common cathodes + 2 unused). The design must ensure the peak current per segment during its brief on-time does not exceed the absolute maximum rating, while the average current provides the desired brightness.

. Operating Principle

The device operates on the principle of electroluminescence in a semiconductor p-n junction. When a forward voltage exceeding the junction's built-in potential is applied, electrons from the n-type AlInGaP layer recombine with holes from the p-type layer. This recombination event releases energy in the form of photons (light). The specific composition of the AlInGaP alloy determines the bandgap energy, which in turn defines the wavelength (color) of the emitted light—in this case, Super Red. The light is emitted from the active region, shaped by the package's reflector cup and epoxy lens to form the visible segments.

. Technology Trends

AlInGaP technology represents a mature and highly efficient solution for red, orange, and yellow LEDs. Current trends in display technology include the development of even higher efficiency materials, such as those based on gallium nitride (GaN) for broader spectrum coverage, and the integration of micro-LEDs for ultra-high-resolution direct-view displays. For single-digit and small alphanumeric displays, the trend continues towards miniaturization, higher brightness, lower power consumption, and improved compatibility with lead-free, high-temperature reflow processes required for RoHS compliance and modern SMT assembly lines. The use of advanced plastics and encapsulation materials also improves long-term reliability and resistance to environmental factors like humidity and UV exposure.

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.