Takardar Bayani na Fasaha ta LTC-2723JS - Tsawon Lamba 0.28-inch - LED Mai Ruwan Zuma AlInGaP - Tsarin Katod Gama-gari - Hausa

1. Bayyani Game da Samfur

LTC-2723JS na'urar nunin lamba ce mai lamba hudu da sassa bakwai, wacce aka tsara don aikace-aikacen da ke bukatar karanta lambobi a fili da haske. Babban aikinta shi ne nuna bayanan lambobi a ido. Fasahar cikinta tana amfani da kayan semiconductor na Aluminium Indium Gallium Phosphide (AlInGaP) don guntu na LED, wadanda aka dora a kan wani abu marar gani na Gallium Arsenide (GaAs). An tsara wannan hadin musamman don samar da haske mai haske mai ruwan zuma. Na'urar tana da fuskar launin toka tare da alamomin sassa farare, wanda ke kara bambanci da karantawa a karkashin yanayin haske daban-daban. Tana amfani da tsarin katod gama-gari, wanda shine tsari na yau da kullun don nunin lambobi da yawa don rage yawan fil ɗin turawa da ake bukata.

1.1 Fa'idodi na Ciki da Aikace-aikacen Manufa

Nunin yana ba da fa'idodi masu mahimmanci da yawa waɗanda suka sa ya dace da kewayon kayan aikin lantarki da samfuran mabukaci. Ƙarancin wutar lantarki da ake bukata fa'ida ce mai mahimmanci ga na'urorin da ake amfani da baturi ko masu ingancin makamashi. Kyakkyawan bayyanar haruffa, babban haske, da babban bambanci suna tabbatar da karantawa daga nesa da kuma cikin hasken muhalli. Faɗin kusurwar kallo yana ba da damar karanta nunin daga matsayi daban-daban ba tare da asarar ƙarfi ko tsabta ba. Amintaccen ingancin fasahar LED yana ba da tsawon rayuwar aiki da juriya ga girgiza da rawar jiki idan aka kwatanta da sauran fasahohin nuni kamar na'urar haske mai ruwan tabarau ko na'urar haske. Kasuwannin manufa na yau da kullun sun haɗa da kayan aikin gwaji da aunawa, kwamfutocin sarrafa masana'antu, na'urorin siyarwa, dashbodin motoci (don nunin bayan kasuwa ko na biyu), da kayan aikin gida inda ake buƙatar nuna lambobi a fili.

2. Bincike Mai zurfi na Sigogi na Fasaha

Wannan sashe yana ba da fassarar cikakke, mai ma'ana game da sigogin lantarki, na gani, da na zafi da aka ƙayyade a cikin takardar bayani. Fahimtar waɗannan sigogi yana da mahimmanci don tsarin da'ira daidai da kuma tabbatar da amincin dogon lokaci.

2.1 Matsakaicin Matsakaicin Matsayi

Waɗannan ƙididdiga suna ayyana iyakokin damuwa wanda sama da su za a iya haifar da lalacewa na dindindin ga na'urar. Ba a ba da garantin aiki a ƙarƙashin ko a waɗannan iyakokin ba kuma ya kamata a guje su a cikin amfani na yau da kullun.

• Rushewar Wutar Lantarki kowane Sashi:70 mW. Wannan shine matsakaicin wutar lantarki da za a iya watsar da ita azaman zafi ta hanyar sashin da aka haskaka guda ɗaya. Wuce wannan zai iya haifar da zafi mai yawa da lalacewar guntun LED cikin sauri.
• Matsakaicin Halin Gaba kowane Sashi:60 mA (a cikin 1/10 aikin aiki, faɗin bugun jini 0.1ms). Wannan ƙimar don aikin bugun jini ne, wanda aka saba amfani da shi a cikin tsare-tsaren turawa da yawa. Yana ba da damar mafi girman halin yanzu na lokaci don cimma mafi girman haske mai kololuwa ba tare da wuce matsakaicin iyakar matsakaicin wutar lantarki ba.
• Ci gaba da Halin Gaba kowane Sashi:25 mA (an rage shi layi daga 25°C a 0.33 mA/°C). Wannan shine matsakaicin halin yanzu na DC don haskakawa ci gaba. Ma'aunin raguwa yana nuna cewa halin yanzu da aka yarda yana raguwa yayin da yanayin yanayi (Ta) ya karu sama da 25°C don hana guduwar zafi.
• Karfinsa Baya kowane Sashi:5 V. Yin amfani da ƙarfin baya fiye da wannan zai iya rushe haɗin PN na LED.
• Yanayin Aiki & Ma'ajiyar Zafin Jiki:-35°C zuwa +85°C. An ƙididdige na'urar don yin aiki kuma a adana ta a cikin wannan kewayon zafin jiki.
• Zafin Solder:260°C na dakika 3 a 1/16 inch (kusan 1.6mm) ƙasa da filin zama. Wannan yana ayyana bayanan gudanar da solder don hana lalacewa ga kunshin filastik da haɗin wayoyi na ciki.

2.2 Halaye na Lantarki & Na Gani

Waɗannan su ne sigogin aiki na yau da kullun da aka auna a ƙarƙashin ƙayyadaddun yanayin gwaji (Ta=25°C). Suna ayyana halayen aiki na yau da kullun na na'urar.

• Matsakaicin Ƙarfin Hasken Gani (I_V):200-600 µcd a I_F=1mA. Wannan shine ma'aunin fitowar haske da ake iya gani. Faɗin kewayon (200 min, 600 typ) yana nuna cewa an rarraba ko an shirya na'urar don ƙarfi. Dole ne masu zane su yi la'akari da wannan bambancin.
• Matsakaicin Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon 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Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsaw_p): nm (typical). This is the wavelength at which the spectral power distribution is maximum, defining the yellow color.
• Spectral Line Half-Width (Δλ): nm (typical). This indicates the spectral purity or the spread of wavelengths emitted. A smaller value indicates a more monochromatic color.
• Dominant Wavelength (λ_d): nm (typical). This is the single wavelength perceived by the human eye to match the color of the source, closely related to the peak wavelength for LEDs.
• Forward Voltage per Segment (V_F):.05V (min), 2.6V (typical) at I_F=20mA. This is the voltage drop across the LED when conducting. It is crucial for designing the current-limiting circuitry.
• Reverse Current per Segment (I_R): µA (max) at V_R=5V. This is the small leakage current when the LED is reverse-biased within its maximum rating.
• Luminous Intensity Matching Ratio (I_V-m)::1 (max). This specifies the maximum allowable ratio between the brightest and dimmest segment/digit under identical drive conditions, ensuring uniform appearance.

. Binning System Explanation

The datasheet explicitly states the device is \"categorized for luminous intensity.\" This refers to a binning or sorting process post-manufacturing.

• Luminous Intensity Binning:Due to inherent variations in the semiconductor epitaxial growth and chip fabrication process, the light output of LEDs can vary. Devices are tested and sorted into different intensity bins (e.g., a bin for 200-300 µcd, another for 300-400 µcd, etc.). The specified range of 200-600 µcd covers multiple bins. For applications requiring consistent brightness across multiple displays or production runs, specifying a tighter bin or purchasing from a single bin lot is necessary.
• Wavelength/Color Binning:While not explicitly mentioned with min/max values beyond typical, AlInGaP LEDs are also commonly binned for dominant wavelength to ensure color consistency, which is critical for user interface aesthetics.
• Forward Voltage Binning:Less common for displays but sometimes done for LEDs used in parallel configurations to ensure current sharing.

. Performance Curve Analysis

The datasheet references \"Typical Electrical/Optical Characteristic Curves.\" While the specific graphs are not provided in the text, we can infer their standard content and importance.

• Current vs. Forward Voltage (I-V Curve):This graph shows the non-linear relationship between forward current (I_F) and forward voltage (V_F). It is essential for determining the required supply voltage and for designing constant-current drivers, which are preferred over constant-voltage with series resistors for better stability and longevity.
• Luminous Intensity vs. Forward Current (I_Vvs. I_F):This curve shows how light output increases with current. It is typically linear over a range but will saturate at high currents due to thermal and efficiency droop. This helps designers choose an operating current that balances brightness and efficiency/lifetime.
• Luminous Intensity vs. Ambient Temperature:The light output of LEDs decreases as junction temperature increases. This curve is critical for applications operating in high-temperature environments to ensure sufficient brightness is maintained.
• Spectral Distribution:A plot of relative intensity vs. wavelength, showing the peak at ~588nm and the half-width. This defines the color point on the CIE chromaticity diagram.

. Mechanical & Package Information

The device's physical construction and dimensions are defined for PCB layout and mechanical integration.

• Digit Height:.28 inches (7.0 mm). This is the height of a single character.
• Package Dimensions:The datasheet includes a detailed dimensional drawing (not reproduced in text). Key features would include the overall length, width, and height of the module, the spacing between digits, the segment size, and the location and diameter of the mounting holes or pins. Tolerances are typically ±0.25 mm.
• Pinout and Polarity Identification:The pin connection table is provided. The device uses a 16-pin configuration. Pins 1, 8, 11, and 14 are the common cathodes for digits 1, 4, 3, and 2 respectively. Pin 12 is a common cathode for the left-side colon segments (L1, L2, L3). The remaining pins are anodes for specific segments (A, B, C, D, E, F, G, DP) and are shared across digits in the multiplexed design. \"No Connection\" (NC) pins should be left unconnected. Correct polarity (cathode vs. anode) is mandatory to prevent damage.

. Soldering & Assembly Guidelines

Proper handling during assembly is critical to reliability.

• Reflow Soldering Parameters:As per the absolute maximum rating: peak temperature of 260°C for 3 seconds, measured 1.6mm below the package body. This aligns with a standard lead-free reflow profile. The package is likely not suitable for wave soldering due to its plastic construction.
• Precautions:Avoid mechanical stress on the pins. Use appropriate ESD (Electrostatic Discharge) precautions during handling, as the LED chips are sensitive to static electricity. Ensure the PCB layout provides adequate clearance around the display to avoid shadowing or light piping issues.
• Storage Conditions:Store within the specified temperature range (-35°C to +85°C) in a low-humidity, anti-static environment to prevent moisture absorption (which can cause \"popcorning\" during reflow) and electrostatic damage.

. Application Recommendations

.1 Typical Application Circuits

The multiplexed common cathode design requires a specific driving strategy. A microcontroller or dedicated display driver IC is typically used. The anodes for each segment type (e.g., all 'A' segments) are connected together and driven through a current-limiting resistor or constant-current source. The common cathode for each digit is connected to a transistor (NPN BJT or N-channel MOSFET) that acts as a low-side switch. The microcontroller rapidly cycles through turning on one digit's cathode transistor while outputting the pattern for that digit's segments on the anode lines. The persistence of vision makes all digits appear continuously lit. The right-hand decimal point (DP) has a dedicated anode (pin 3).

.2 Design Considerations

• Current Limiting:Always use a current-limiting resistor in series with each segment anode or a constant-current driver. Calculate the resistor value based on the supply voltage (V_CC), the LED forward voltage (V_F), and the desired forward current (I_F). For multiplexing, if the duty cycle is 1/4 (for 4 digits), the instantaneous current can be up to 4 times the desired average current to maintain brightness.
• Driver Selection:Ensure the microcontroller or driver IC can sink enough current for the common cathode switches and source enough current for the segment anodes. The total peak current can be significant (e.g., digit with all 7 segments + DP lit).
• Refresh Rate:The multiplexing refresh rate should be high enough to avoid visible flicker, typically above 60 Hz per digit, resulting in a total cycle frequency >240 Hz.
• Viewing Angle:Position the display considering its wide viewing angle to maximize usability for the end-user.

. Technical Comparison & Differentiation

Compared to other seven-segment display technologies:

• vs. Red GaAsP/GaP LEDs:AlInGaP yellow offers higher luminous efficiency and brightness. The yellow color may offer better contrast and perceived brightness in certain environments compared to red.
• vs. LCDs:LEDs are emissive, providing their own light, making them clearly visible in dark conditions without a backlight. They have a much wider operating temperature range and faster response time. However, they generally consume more power than reflective LCDs.
• vs. Larger Digit Displays:The 0.28\" digit height is a compact size, suitable for portable or space-constrained equipment where larger displays (0.5\\

  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.