Takardar Bayani na TO-247-2L 650V SiC Schottky Diode - Girmansa 16.26x20.0x4.7mm - Ƙarfin Wutar Lantarki 650V - Halin Yanzu 20A - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

Wannan takarda ta bayyana cikakken bayani game da ƙayyadaddun bayanai na babban SiC Schottky Barrier Diode (SBD) wanda aka sanya a cikin kunshin TO-247-2L. An ƙera wannan na'urar don amfani da mafi kyawun kaddarorin kayan Silicon Carbide, yana ba da fa'idodi masu mahimmanci fiye da tsoffin diodes na silicon a cikin da'irori na canza wutar lantarki mai girma da inganci. Babban aikinsa shine yin aiki azaman mai gyara wutar lantarki tare da ƙarancin asarar sauyawa da cajin dawowa baya.

1.1 Fa'idodi na Asali da Kasuwar Da Ake Nufi

Fa'idodin asali na wannan SiC Schottky diode sun samo asali ne daga halayensa na asali na kayan. Rashin adana 'yan ƙaramin mai ɗaukar kaya yana kawar da halin yanzu na dawowa baya, wanda shine babban tushen asarar sauyawa da katsalandan na lantarki (EMI) a cikin diodes na silicon masu saurin dawowa (FRDs) ko diodes masu saurin dawowa sosai (UFRDs). Wannan yana haifar da fa'idodi da yawa a matakin tsarin: yana ba da damar yin sauyawa mai girma (wanda ke rage girman abubuwan da ba su da ƙarfi kamar inductors da capacitors), inganta ingancin tsarin gaba ɗaya, da rage buƙatun sarrafa zafi (ƙananan masu sanyaya zafi). Kasuwannin da ake nufi su ne aikace-aikacen da ke buƙatar inganci mai girma, yawan ƙarfin wutar lantarki, da aminci, waɗanda suka haɗa da amma ba'a iyakance su ba ga da'irorin Gyara Factor na Wutar Lantarki (PFC) a cikin na'urorin wutar lantarki masu sauyawa (SMPS), masu jujjuyawar hasken rana, na'urorin wutar lantarki marasa katsewa (UPS), injinan mota, da kayan aikin wutar lantarki na cibiyar bayanai.

2. Bincike Mai Zurfi na Ma'auni na Fasaha

Sasannin masu zuwa suna ba da cikakken bayani, fassarar haƙiƙa ta mahimman ma'auni na lantarki da na zafi da aka ƙayyade a cikin takardar bayani. Fahimtar waɗannan ma'auni yana da mahimmanci don zaɓin na'urar da ƙirar da'ira da ya dace.

2.1 Halayen Lantarki

Halayen lantarki suna bayyana aikin diode a ƙarƙashin yanayi daban-daban na aiki.

• Matsakaicin Ƙarfin Wutar Lantarki na Baya Maimaitawa (VRRM): 650V- Wannan shine matsakaicin ƙarfin wutar lantarki na baya na nan take wanda za'a iya amfani da shi akai-akai. Yana bayyana ƙimar ƙarfin wutar lantarki na na'urar. Don aiki mai aminci, matsakaicin ƙarfin wutar lantarki na aiki a aikace-aikacen ya kamata ya haɗa da gefen aminci a ƙasa da wannan ƙimar, yawanci 80-90% na VRRM, ya danganta da ƙarfin wutar lantarki da sauye-sauye na aikace-aikacen.
• Halin Yanzu na Gaba Ci gaba (IF): 20A- Wannan shine matsakaicin matsakaicin halin yanzu na gaba wanda diode zai iya gudanar da shi ci gaba a takamaiman yanayin zafi na akwati (TC=25°C). A aikace-aikacen duniya ta gaske, ainihin halin yanzu da aka halatta yana raguwa yayin da zafin haɗuwa (TJ) ya tashi. Dole ne masu ƙira su koma ga lanƙwasa rage ƙima (kamar Halayen Matsakaicin Ip – TC) don tantance halin yanzu na aiki mai aminci a takamaiman yanayin zafinsu.
• Ƙarfin Wutar Lantarki na Gaba (VF): 1.5V (Typ) @ IF=20A, TJ=25°C- Wannan ma'auni yana nuna raguwar ƙarfin wutar lantarki a kan diode lokacin gudanarwa. Ƙaramin VF yana rage asarar gudanarwa (Pcond = VF * IF). Yana da mahimmanci a lura cewa VF yana da ma'auni mara kyau na zafin jiki don diodes na Schottky, ma'ana yana raguwa kaɗan yayin da zafin jiki ya karu (misali, typ. 1.9V @ 175°C bisa ga takardar bayani). Wannan halayen yana taimakawa wajen aiki tare, saboda na'urar mai zafi za ta ja ɗan ƙaramin halin yanzu, yana rage haɗarin guduwar zafi.
• Halin Yanzu na Baya (IR): 4µA (Typ) @ VR=520V, TJ=25°C- Wannan shine halin yanzu na ɓarna lokacin da diode ke da karkataccen ƙarfin wutar lantarki. Duk da yawanci yana da ƙasa sosai don SiC, yana ƙaruwa da sauri tare da zafin jiki (typ. 40µA @ 175°C). Wannan ɓarna yana ba da gudummawa ga asarar kashewa, waɗanda gabaɗaya ba su da mahimmanci idan aka kwatanta da asarar sauyawa da gudanarwa.
• Jimlar Cajin Capacitive (QC): 30nC (Typ) @ VR=400V- Wannan ma'auni ne mai mahimmanci don sauyawa mai girma. QC yana wakiltar cajin da ke da alaƙa da capacitance na haɗuwa na diode (Cj). Yayin sauyawa, dole ne a samar da wannan cajin ko a cire shi, yana ba da gudummawa ga asarar sauyawa. Ƙananan ƙimar QC na 30nC shine babbar fa'ida ta diodes na SiC Schottky, yana ba da damar aiki mai girma tare da ƙananan asarar sauyawa na capacitive idan aka kwatanta da takwarorinsu na silicon.
• Halin Yanzu na Gaba na Ƙarfi Ba Maimaitawa (IFSM): 51A- Wannan ƙima tana bayyana ikon diode na jure wa abu ɗaya, babban halin yanzu mai yawa na ɗan gajeren lokaci (10ms sine rabin igiyar ruwa). Wannan yana da mahimmanci don sarrafa halin yanzu na shiga ko yanayin kuskure a aikace-aikacen.

2.2 Halayen Zafi

Sarrafa zafi yana da mahimmanci ga aminci da aiki.

• Zafin Haɗuwa (TJ,max): 175°C- Matsakaicin zafin jiki wanda haɗuwar semiconductor zai iya jurewa. Ci gaba da aiki a ko kusa da wannan iyaka zai rage rayuwar na'urar sosai. Al'adar ƙira ta gama gari ita ce iyakance matsakaicin zafin haɗuwa na aiki zuwa 125-150°C don inganta aminci na dogon lokaci.
• Juriya na Zafi, Haɗuwa-zuwa-Akwati (RθJC): 2.0°C/W (Typ)- Wannan ma'auni yana ƙididdige juriya na zafi tsakanin die na semiconductor (haɗuwa) da waje na kunshin. Ƙananan ƙima yana nuna ingantaccen canja wurin zafi daga die zuwa mai sanyaya zafi. Jimlar juriya na zafi daga haɗuwa zuwa yanayi (RθJA) shine jimlar RθJC, juriyar kayan hulɗar zafi, da juriyar mai sanyaya zafi. Ana amfani da RθJC don ƙididdige hawan zafin haɗuwa sama da zafin akwati: ΔTJ = PD * RθJC, inda PD shine ƙarfin wutar lantarki da aka ɓata a cikin diode.
• Jimlar Ƙarfin Wutar Lantarki da Ake ɓata (PD): 75W @ TC=25°C- Wannan shine matsakaicin ƙarfin wutar lantarki da na'urar za ta iya ɓata lokacin da akwati yana riƙe a 25°C. A aikace, wannan shine iyaka na ka'idar da ake amfani da shi tare da RθJC don ƙididdige aikin zafi. Dole ne a ƙididdige ainihin ƙarfin wutar lantarki da aka ɓata bisa yanayin aikace-aikacen (asarar gudanarwa da sauyawa).

3. Bincike na Lanƙwasa Aiki

Takardar bayani tana ba da lanƙwasa halaye da yawa masu mahimmanci don ƙira.

3.1 Halayen VF-IF

Wannan jadawalin yana nuna alaƙar tsakanin raguwar ƙarfin wutar lantarki na gaba da halin yanzu na gaba a zafin haɗuwa daban-daban. Yana tabbatar da ma'auni mara kyau na zafin jiki na VF ta gani. Masu ƙira suna amfani da wannan don ƙididdige asarar gudanarwa daidai a takamaiman halin yanzu na aiki da zafin jiki.

3.2 Halayen VR-IR

Wannan lanƙwasa yana jera halin yanzu na ɓarna na baya akan ƙarfin wutar lantarki na baya, yawanci a zafin jiki da yawa. Yana nuna haɓakar halin yanzu na ɓarna da sauri tare da ƙarfin wutar lantarki da zafin jiki, wanda ke da mahimmanci don kimanta asarar kashewa a cikin yanayi mai zafi.

3.3 Matsakaicin Halin Yanzu na Gaba vs. Zafin Akwati

Wannan lanƙwasa rage ƙima ɗaya ne daga mafi mahimmanci don ƙira. Yana nuna yadda matsakaicin halin yanzu na gaba da aka halatta yana raguwa yayin da zafin akwati ya karu. Dole ne mai ƙira ya tabbatar cewa halin yanzu na aiki na aikace-aikacen, bayan yin la'akari da duk asara da juriya na zafi, ya faɗi ƙasa da wannan lanƙwasa a matsakaicin zafin akwati da ake tsammani.

3.4 Juriyar Zafi na Wucin Gadi vs. Faɗin Bugun Jini

Wannan jadawali (ZθJC vs. Faɗin Bugun Jini) yana da mahimmanci don kimanta aikin zafi yayin bugun jini na ɗan gajeren lokaci, waɗanda suka zama ruwan dare a aikace-aikacen sauyawa. Juriyar zafi na wucin gadi yana da ƙasa fiye da RθJC na tsayayye don gajerun bugun jini, ma'ana hawan zafin haɗuwa don takamaiman bugun jini na ƙarfin wutar lantarki ya yi ƙasa da abin da RθJC na tsayayye zai yi hasashe. Wannan yana ba da damar mafi girma halin yanzu a cikin aikin bugun jini.

4. Bayanin Injiniya da Kunshi

4.1 Girman Kunshi da Tsari

Na'urar tana amfani da daidaitaccen kunshin TO-247-2L na masana'antu. Mahimman girmansa daga zanen tsari sun haɗa da jimlar tsawon kunshi kusan 20.0 mm, faɗin 16.26 mm (ciki har da igiyoyi), da tsayin 4.7 mm (ban da igiyoyi). Igiyoyin suna da diamita na 1.0 mm. An ba da daidaitattun girmansa a cikin zanen tsarin kunshi don ƙirar sawun PCB.

4.2 Saitin Fil da Gano Polarity

Kunshin TO-247-2L yana da igiyoyi biyu da wani shafin ƙarfe mai haɗin lantarki (akwati).
Fil 1:Cathode (K).
Fil 2:Anode (A).
Akwati:Wannan yana da haɗin lantarki zuwa Cathode (Fil 1). Wannan haɗin yana da mahimmanci ga ƙirar zafi da lantarki. Dole ne a ware shafin da aka haɗa da cathode daga mai sanyaya zafi idan mai sanyaya zafi yana da ƙarfin wutar lantarki daban (misali, ƙasa). Yawanci ana samun wannan ta amfani da kushin zafi mai rufewa da washers na kafada don dunƙulewar saka.

4.3 Tsarin Kushin PCB da Aka Shawarta

An ba da tsarin kushin da aka shawarata don saka saman (mai yiwuwa yana nufin sawun rami tare da taimakon zafi). Wannan ya haɗa da diamita ramuka don igiyoyi (misali, 1.2 mm da aka shawarata) da girmansu na kushin tagulla a kusa da ramuka don tabbatar da ingantattun filayen solder da ƙarfin injiniya.

5. Jagororin Tari da Sarrafawa

5.1 Ƙarfin Juyawa na Saka

Ƙayyadadden ƙarfin juyawa na dunƙulewar da ke ƙulla na'urar zuwa mai sanyaya zafi shine0.8 zuwa 1.0 N·m (ko 8.8 lbf·in)don dunƙulewar M3 ko 6-32. Yin amfani da daidaitaccen ƙarfin juyawa yana da mahimmanci: ƙarancin ƙarfin juyawa yana haifar da juriya mai girma na zafi, yayin da ƙarfin juyawa mai yawa zai iya lalata kunshi ko die na semiconductor.

5.2 Yanayin Ajiya

Ana iya adana na'urar a cikin kewayon zafin jiki na-55°C zuwa +175°C. Ana shawarar adana abubuwan a cikin yanayi mai bushewa, maras lantarki don hana shan danshi (wanda zai iya haifar da "popcorning" yayin dawowa) da lalacewar fitar da lantarki (ESD), ko da yake diodes na Schottky gabaɗaya sun fi ƙarfi ga ESD fiye da MOSFETs.

6. Bayanin Aikace-aikace da Abubuwan Ƙira

6.1 Da'irorin Aikace-aikace na Yau da Kullun

Babban aikace-aikacen da aka haskaka sune:
Gyara Factor na Wutar Lantarki (PFC):Ana amfani da shi a matsayin diode na haɓaka. Saurin sauyawa da ƙananan Qc suna rage asarar sauyawa a girma mai girma (misali, >100 kHz), yana inganta matakin ingancin PFC.
Mai Jujjuyawar Hasken Rana / UPS:Ana amfani da shi a cikin gyaran shigarwa ko matsayin diode na dawowa na fitarwa mai jujjuyawa. Babban inganci yana rage asarar makamashi da buƙatun sanyaya.
Injinan Mota:Ana amfani da su azaman diodes na dawowa a kan masu sauyawar mai jujjuyawa ko a cikin da'irorin birki. Babban ƙarfin ɗaukar ƙarfi (IFSM) yana da amfani don sarrafa bugun jini na inductive.

6.2 Mahimman Abubuwan Ƙira

• Ƙirar Zafi:Ƙididdige jimlar ƙarfin wutar lantarki da ake ɓata (Pcond + Psw) daidai. Yi amfani da RθJC da lanƙwasa rage ƙima da aka bayar don zaɓar mai sanyaya zafi da ya dace kuma a tabbatar TJ ya kasance cikin iyakoki masu aminci (misali,<150°C). Ka tuna don yin la'akari da juriyar kayan hulɗar zafi.
• Aiki Tare:Ma'auni mara kyau na zafin jiki na VF yana sauƙaƙe raba halin yanzu a cikin tsari tare, yana rage haɗarin guduwar zafi. Duk da haka, ana shawarar daidaiton tsari mai hankali da yuwuwar ƙananan resistors na ƙofar ko inductors masu raba halin yanzu don mafi kyawun raba halin yanzu mai ƙarfi.
• Da'irorin Snubber:Duk da yake diodes na SiC ba su da dawowa baya, capacitance ɗin haɗuwarsu da abubuwan da ba su dace ba na da'ira na iya haifar da hawan ƙarfin wutar lantarki yayin kashewa. Da'irar RC snubber a kan diode na iya zama dole don rage girgiza da rage EMI, musamman a cikin da'irori masu girma-di/dt.
• La'akari da Turawar Ƙofar (don masu sauyawa masu alaƙa):Ƙananan Qc na diode yana rage asarar sauyawa na maɓalli mai aiki na gaba (misali, MOSFET, IGBT) a cikin tsarin rabin gada ko haɓaka, yana ba da damar turawar ƙofar mafi sauƙi ko sauri.

7. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da diode na silicon PN junction mai saurin dawowa (FRD) mai kama da ƙarfin wutar lantarki da ƙimar halin yanzu, wannan SiC Schottky diode yana ba da fa'idodi masu yanke hukunci:
1. Sifili Dawowa Baya (Qrr):Bambanci mafi mahimmanci. Silicon FRD yana da babban cajin dawowa baya (Qrr), yana haifar da asarar sauyawa mai girma, ƙara damuwa akan maɓallin sauyawa na gaba, da babban EMI. SiC SBD yana da Qrr ≈ 0.
2. Ƙaramin Ƙarfin Wutar Lantarki na Gaba a Babban Zafin Jiki:Yayin da VF na diode na silicon ke ƙaruwa tare da zafin jiki, VF na SiC SBD yana raguwa, yana taimakawa kwanciyar hankali na zafi.
3. Matsakaicin Zafin Jiki na Aiki:Kayan SiC yana ba da damar mafi girma matsakaicin zafin haɗuwa (175°C vs. yawanci 150°C don silicon), yana ba da ƙarin sararin ƙira.
Ciniki yawanci ɗan ƙaramin farashi na farko ne da ɗan ƙaramin ƙarfin wutar lantarki na gaba a zafin ɗaki idan aka kwatanta da wasu diodes na silicon. Duk da haka, ceton matakin tsarin a cikin inganci, girman mai sanyaya zafi, da na'urori na maganadisu sau da yawa suna tabbatar da farashin.

8. Tambayoyin da Ake Yawan Yi (FAQs)

Q: Shin wannan diode yana buƙatar snubber na dawowa baya?
A: A'a don manufar ɗaure halin yanzu na dawowa baya, saboda ba shi da mahimmanci. Duk da haka, RC snubber na iya zama dole don rage ƙarar sauti mai girma wanda capacitance na haɗuwa na diode ke haifarwa tare da inductance na ɓatacce na da'ira.

Q: Zan iya amfani da wannan diode kai tsaye azaman maye gurbin silicon FRD a cikin da'irata ta yanzu?
A: A lantarki, dangane da ƙarfin wutar lantarki da ƙimar halin yanzu, i. Duk da haka, kuna iya ƙara mitar sauyawa don rage girman abubuwan da ba su da ƙarfi. Hakanan, duba kowane da'irorin snubber da aka ƙera don Qrr na FRD; za a iya rage su ko kawar da su. Ya kamata a sake kimanta aikin zafi yayin da abun da ke cikin asara ya canza.

Q: Me yasa akwati yake haɗe da cathode?
A: Wannan tsari ne na gama gari. Yana sauƙaƙe warewa a cikin da'irori da yawa (kamar matakan haɓaka PFC) inda cathode sau da yawa ke haɗawa da babban bas na DC, wanda za a iya ware shi daga ƙasar duniya. Idan anode ya haɗa da akwati, sau da yawa yana kan yuwuwar kumburin sauyawa, yana sa warewa ya fi rikitarwa.

Q: Ta yaya zan iya ƙididdige asarar sauyawa don wannan diode?
A: Tare da Qrr ≈ 0, babban ɓangaren asarar sauyawa shine capacitive. Asarar kowane zagayowar sauyawa za a iya ƙididdige shi azaman (1/2) * Cj(VR) * VR² * fsw, inda Cj shine capacitance na haɗuwa mai dogaro da ƙarfin wutar lantarki, VR shine ƙarfin wutar lantarki na baya da yake canzawa zuwa, kuma fsw shine mitar sauyawa. Takardar bayani tana ba da Cj a takamaiman ƙarfin wutar lantarki da jimlar makamashin capacitive (EC) lanƙwasa don ƙarin daidaitaccen kimantawa.

9. Ka'idar Aiki

An kafa diode na Schottky ta hanyar haɗuwar ƙarfe-semiconductor, sabanin daidaitaccen diode na haɗuwar PN. A cikin diode na Silicon Carbide Schottky, semiconductor shine SiC. Shingen Schottky da aka kafa a wurin haɗuwar ƙarfe-SiC yana ba da damar gudanar da mai ɗaukar kaya kawai (electrons a cikin SiC na N-type). Wannan shine ainihin dalilin rashin adana 'yan ƙaramin mai ɗaukar kaya kuma, saboda haka, rashin halin yanzu na dawowa baya. Lokacin da aka yi karkata zuwa gaba, ana cusa electrons daga semiconductor zuwa cikin ƙarfe. Lokacin da aka yi karkata zuwa baya, shingen Schottky yana hana babban kwararar halin yanzu, ban da ɗan ƙaramin halin yanzu na ɓarna. Amfani da SiC azaman kayan semiconductor yana ba da mafi faɗin bandgap fiye da silicon, yana haifar da mafi girma ƙarfin filin rushewa, mafi girma thermal conductivity, da ikon yin aiki a yanayin zafi mai girma.

10. Trends na Masana'antu

Karɓar semiconductors masu faɗin bandgap (WBG) kamar Silicon Carbide (SiC) da Gallium Nitride (GaN) babban al'ada ne a cikin kayan lantarki na wutar lantarki, wanda buƙatun duniya na mafi girman ingancin makamashi da yawan ƙarfin wutar lantarki ke motsa shi. Na'urorin SiC, gami da diodes na Schottky da MOSFETs, suna ganin raguwar farashi da sauri da ingantaccen aiki. Trends sun haɗa da haɓaka mafi girma ƙimar ƙarfin wutar lantarki (misali, 1.2kV, 1.7kV) don aikace-aikacen mota da masana'antu, ƙananan juriya akan da raguwar ƙarfin wutar lantarki na gaba, ingantattun bayanan aminci, da haɗa diodes na SiC tare da MOSFETs na SiC a cikin kayan aikin wutar lantarki. Kasuwa tana tafiya zuwa ƙarin ingantattun kunshi da takamaiman aikace-aikacen fiye da daidaitaccen TO-247, kamar kunshi masu ƙarancin inductance kamar TO-247-4L (tare da keɓantaccen haɗin tushen Kelvin don MOSFETs) da kuma nau'ikan kunshi na saka saman don ƙirar ƙanƙanta.