LTR-5888DH Phototransistor Data Sheet - Kwalin Kore Kore Mai Kauri - 30V Collector-Emitter Voltage - Takardun Fasaha na Hausa

1. Bayanin Samfur

LTR-5888DH babban infrared (IR) phototransistor ne wanda aka tsara don aikace-aikacen hankali inda ake buƙatar ingantaccen gano hasken infrared. Babban aikinsa shine canza hasken infrared da ke faruwa zuwa wutar lantarki. Na'urar tana cikin wani kwalin roba na musamman mai launin kore mai duhu, wani muhimmin siffa wanda ke rage karfin hankalinsa ga haske mai gani sosai. Wannan tasirin tacewa yana rage tsangwama daga tushen haske na gani na yanayi, yana haɓaka rabon sigina zuwa amo da aminci a cikin tsarin hankali na infrared na keɓaɓɓu. Ana siffanta kayan da faɗin kewayon aiki don igiyar taro, babban hankali ga hasken IR, da saurin lokutan sauyawa, wanda ya sa ya dace da aikace-aikacen da ke buƙatar amsa mai sauri.

2. Bincike Mai Zurfi na Sigogi na Fasaha

2.1 Matsakaicin Matsayin Cikakke

An ƙididdige na'urar don aiki a ƙarƙashin takamaiman matsakaicin yanayi don tabbatar da aminci da hana lalacewa. Matsakaicin ɓarnawar wutar lantarki shine 100 mW. Ƙarfin lantarki na taro-emitter (V_CEO) zai iya jurewa har zuwa 30V, yayin da ƙarfin lantarki na emitter-collector (V_ECO) yana iyakance zuwa 5V. Kewayon zafin aiki daga -40°C zuwa +85°C, kuma ana iya adana shi a cikin yanayi daga -55°C zuwa +100°C. Don solder, igiyoyin za su iya jure zafin 260°C na tsawon dakika 5 idan aka auna 1.6mm daga jikin kayan.

2.2 Halaye na Lantarki da na Gani

An ƙayyade cikakkun sigogi na aiki a zafin yanayi (T_A) na 25°C. Matsakaicin ƙarfin lantarki na taro-emitter (V_(BR)CEO) yawanci 30V ne a igiyar taro (I_C) na 1mA ba tare da irradiance ba. Matsakaicin ƙarfin lantarki na taro-emitter (V_CE(SAT)) ya kasance daga 0.1V zuwa 0.4V lokacin da igiyar taro ta kasance 100μA a ƙarƙashin irradiance na 1 mW/cm². An ayyana saurin sauyawa ta hanyar lokacin tashi (T_r) da lokacin faɗuwa (T_f), an ƙayyade su a matsayin 15 μs da 18 μs bi da bi a ƙarƙashin yanayin gwaji na V_CC=5V, I_C=1mA, da juriya na kaya (R_L) na 1 kΩ. Igilar taro mai duhu (I_CEO), wanda shine igiyar zubewa lokacin da babu haske, yana tsakanin 0.1 nA da 100 nA a V_CE=10V.

3. Bayanin Tsarin Binning

LTR-5888DH yana amfani da tsarin binning don rarraba na'urori bisa ga Igilar Taro na Yanayin Kunna (I_C(ON)). Wannan siga shine matsakaicin igiyar da phototransistor ke samarwa a ƙarƙashin daidaitattun yanayi (V_CE= 5V, E_e= 1 mW/cm²). Takardar bayanai tana ba da saitin tebur na binning guda biyu: ɗaya don "Saitin Samarwa" da wani kuma don tabbataccen "Kewayon Igilar Taro na Yanayin Kunna."

Kowane kwandon (A zuwa H) yayi daidai da takamaiman kewayon I_C(ON)kuma ana gano shi ta hanyar alamar launi akan kayan. Misali, Bin A (mai alamar Ja) a cikin saitin samarwa yana da I_C(ON)kewayon 0.20 mA zuwa 0.26 mA, yayin da tabbataccen kewayonsa shine 0.16 mA zuwa 0.31 mA. Wannan binning yana ba masu zane damar zaɓar abubuwan da ke da madaidaicin hankali don takamaiman buƙatun da'irarsu, yana tabbatar da aikin da ake iya tsinkaya a cikin samar da girma. Kwandon suna ci gaba daga ƙananan hankali (Bin A) zuwa mafi girman hankali (Bin H).

4. Bincike na Lankwara na Aiki

Takardar bayanai ta haɗa da lankwara na halaye da yawa waɗanda ke nuna halayen na'urar a ƙarƙashin yanayi daban-daban.

4.1 Collector Dark Current vs. Yanayin Yanayi

Hoto na 1 yana nuna cewa igilar taro mai duhu (I_CEO) yana ƙaruwa da yawa tare da hawan zafin yanayi. Wannan muhimmin abin la'akari ne don aikace-aikacen zafi mai girma, saboda ƙaruwar igiyar zubewa na iya shafar matakin sigina na kashe-kashe da ƙarar amo na da'irar hankali.

4.2 Collector Power Dissipation vs. Yanayin Yanayi

Hoto na 2 yana nuna lankwaran rage ƙima don matsakaicin ƙarfin wutar lantarki na taro (P_C). Yayin da zafin yanayi ke ƙaruwa, matsakaicin ƙarfin wutar lantarki mai aminci yana raguwa a layi daya. Wannan jadawalin yana da mahimmanci don sarrafa zafi da tabbatar da na'urar tana aiki a cikin yankinta na aiki mai aminci (SOA).

4.3 Lokacin Tashi da Faɗuwa vs. Resistance na Kaya

Hoto na 3 yana nuna alaƙa tsakanin saurin sauyawa (lokacin tashi T_rda lokacin faɗuwa T_f) da juriya na kaya (R_L). Duka T_rda T_fsuna ƙaruwa tare da mafi girman juriya na kaya. Masu zane za su iya amfani da wannan lankwara don inganta ciniki tsakanin saurin sauyawa da jujjuyawar ƙarfin lantarki ta hanyar zaɓar R_L value.

4.4 Relative Collector Current vs. Irradiance

Hoto na 4 yana tsara igilar taro na dangi akan irradiance na infrared (E_e). Lankwaran yana nuna alaƙar ƙasa-layin, inda ƙimar haɓakar igiyar taro ke raguwa a matakan irradiance mafi girma. Wannan halayen yana ayyana hankalin phototransistor da kewayon motsi.

5. Bayanin Injiniya da Kunshin

Kayan yana amfani da daidaitaccen kunshin phototransistor. Muhimman bayanan girma sun haɗa da: duk girma suna cikin millimeters, tare da juriya na gabaɗaya na ±0.25mm sai dai idan an ƙayyade akasin haka. Matsakaicin tsinkaya na guduro a ƙarƙashin flange shine 1.5mm. Ana auna tazarar jagora a wurin da jagororin suka fita daga jikin kunshin. An zaɓi kayan roba mai launin kore mai duhu musamman don kaddarorin tace gani.

6. Jagororin Solder da Haɗawa

Za a iya solder igiyoyin a matsakaicin zafin 260°C na tsawon lokacin da bai wuce dakika 5 ba. Ya kamata a auna wannan a nisan 1.6mm (0.063 inci) daga jikin kunshin don hana lalacewar zafi ga die semiconductor a ciki. Ana iya amfani da daidaitattun hanyoyin solder na igiyar ruwa ko reflow waɗanda suka dace da wannan bayanin zafi. Ya kamata a kula don guje wa matsanancin damuwa na injiniya akan igiyoyin yayin sarrafawa da sanyawa.

7. Shawarwarin Aikace-aikace

7.1 Yanayin Aikace-aikace na Al'ada

LTR-5888DH ya dace da aikace-aikacen gano infrared daban-daban, gami da gano abu da ƙidaya, na'urori masu auna rami (misali, a cikin firinta ko injinan sayar da kayan), hankali na kusanci, da kuma sarrafa masana'antu inda ake amfani da ka'idar katse katako. Kunshinsa mai launin kore mai duhu ya sa ya dace musamman da yanayin da ke da haske mai gani na yanayi, kamar a ƙarƙashin hasken rana ko hasken cikin gida mai haske.

7.2 Abubuwan Tunani na Zane

Lokacin zana da'ira, ƙimar resistor na kaya (R_L) yana da mahimmanci. Ƙananan R_Lyana ba da saurin sauyawa (kamar yadda aka gani a Hoto na 3) amma yana haifar da ƙaramin jujjuyawar ƙarfin lantarki don takamaiman photocurrent. Babban R_Lyana ba da babban jujjuyawar ƙarfin lantarki amma amsa mai jinkiri. Ƙarfin lantarki na aiki bai kamata ya wuce matsakaicin matsakaicin matsakaicin ba. Zaɓin binning ya kamata ya yi daidai da buƙatun hankali don ƙarfin siginar IR da ake tsammani na aikace-aikacen. Don aiki mai ƙarfi, yi la'akari da dogaro da zafin jiki na igiyar duhu, musamman a cikin yanayin zafi mai girma.

8. Kwatancen Fasaha da Bambanci

Babban siffa na banbanta na LTR-5888DH shine kunshinsa mai launin kore mai duhu. Idan aka kwatanta da daidaitattun fakitin bayyananne ko marasa launi, wannan kunshin yana aiki azaman tace haske mai gani na cikin gida. Wannan yana kawar ko rage buƙatar tace gani na waje, yana sauƙaƙa haɗawa, rage adadin abubuwan, da yuwuwar rage farashi. Haɗinsa na babban hankali, saurin sauyawa, da faɗin kewayon igiyar taro ya sa ya zama zaɓi mai yawa a cikin phototransistors na infrared.

9. Tambayoyin da ake yawan yi (FAQ)

Q: Menene manufar kunshin kore mai duhu?
A: Roba mai launin kore mai duhu yana tace wani ɓangare mai mahimmanci na haske mai gani, yana ba da damar hasken infrared kawai ya isa yankin mai hankali na phototransistor. Wannan yana inganta aiki a cikin yanayi mai haske mai haske ta hanyar rage kaddarorin ƙarya ko amo.

Q: Ta yaya zan zaɓi daidaitaccen kwandon don aikace-aikacena?
A: Zaɓi kwandon bisa ga ƙarfin siginar infrared da ake tsammani a cikin aikace-aikacenku. Idan tushen IR yana da rauni ko nesa, kwandon mafi girman hankali (misali, H, Orange) na iya zama dole. Don sigina mai ƙarfi, ƙananan kwandon hankali (misali, A, Ja) na iya isa kuma zai iya ba da fa'idodi kamar ƙananan igiyar duhu. Koyaushe ku tuntubi kewayon igiyar da aka tabbatar, ba kawai kewayon saitin samarwa ba.

Q: Me yasa saurin sauyawa ya dogara da resistor na kaya?
A> Resistor na kaya da ƙarfin lantarki na ciki na phototransistor suna samar da da'irar RC. Babban resistor yana ƙara ƙimar lokacin RC, yana rage saurin caji da cire wannan ƙarfin lantarki yayin abubuwan sauyawa, don haka yana ƙara lokutan tashi da faɗuwa.

10. Lamarin Aikace-aikace na Aiki

Harka: Gano Takarda a cikin Firinta na Ofis
A cikin firinta na firinta na takarda, an sanya LED infrared a gefe ɗaya na hanyar takarda, kuma an sanya LTR-5888DH a gaba daidai. Lokacin da takarda ta kasance, tana toshe katakon IR, yana haifar da raguwar igiyar phototransistor. Kunshin kore mai duhu yana da mahimmanci a nan saboda ana amfani da firinta sau da yawa a cikin ofisoshi masu haske. Yana hana hasken filasha ko hasken LED na ɗaki daga fassara kuskure a matsayin siginar IR daga LED, yana tabbatar da ingantaccen gano takarda. Za a zaɓi kwandon matsakaicin hankali (misali, C ko D) a al'ada, kuma za a zaɓi ƙimar resistor na kaya don samar da tsaftataccen siginar dijital zuwa microcontroller na firinta tare da daidaitaccen lokacin amsa don motsin takarda.

11. Ka'idar Aiki

Phototransistor yana aiki daidai da daidaitaccen transistor na haɗin gwiwa na bipolar (BJT) amma tare da yanki na tushe mai hankali ga haske. Maimakon igiyar tushe, photons masu faruwa (ɓangarorin haske) suna samar da nau'ikan rami na electron a cikin haɗin gwiwar taro-taro lokacin da ƙarfinsu ya isa. Waɗannan masu ɗaukar hoto suna aiki azaman igiyar tushe, wanda aka ƙara ta hanyar ribar igiyar transistor (beta, β). Wannan yana haifar da igiyar taro wacce ta fi girman photocurrent na asali, yana ba da babban hankali. An inganta LTR-5888DH don amsa ga photons a cikin kewayon tsawon raƙuman infrared.

12. Trends na Fasaha

Trend a cikin na'urori masu auna gani daban-daban kamar phototransistors yana zuwa ga haɗin kai mafi girma, ƙananan fakitin, da ingantaccen aiki. Yayin da abubuwa daban-daban suke da mahimmanci don aikace-aikacen da ke da hankali ga farashi ko takamaiman aiki, akwai motsi zuwa ga mafita haɗin kai waɗanda ke haɗa mai gano hoto, amplifier, da wani lokacin hanyar sadarwa ta dijital (kamar I2C) zuwa kunshi ɗaya. Waɗannan na'urori masu auna haɗin kai suna ba da fitarwa na dijital da aka daidaita kuma suna iya zama mai sauƙin amfani amma suna iya zuwa da farashi mafi girma. Don buƙatun tsantsa, sauri, ko na analog, phototransistors daban-daban kamar LTR-5888DH suna ci gaba da zama ingantacciyar mafita mai inganci. Amfani da kayan kunshin na musamman don tace gani, kamar yadda aka gani a nan, hanya ce mai mahimmanci don inganta aiki ba tare da ƙara rikitaccen da'ira ba.