Takardar Bayanin Fasaha na TO-220-2L SiC Schottky Diode - 650V 10A - Girmansa 15.6x9.99x4.5mm

1. Bayanin Samfur

Wannan takarda ta yi cikakken bayani game da ƙayyadaddun bayanai na babban aikin Silicon Carbide (SiC) Schottky Barrier Diode (SBD) wanda aka sanya a cikin kunshe na TO-220-2L. An ƙera na'urar don aikace-aikacen canza wutar lantarki mai girma, mai yawan mitoci inda inganci, sarrafa zafi, da saurin sauyawa suke da muhimmanci. Fasahar SiC tana ba da fa'idodi masu mahimmanci idan aka kwatanta da diode na silicon na gargajiya, musamman saboda kyawawan kaddarorin kayan aiki.

Babban aikin wannan diode shine ba da damar kwarara ta wata hanya guda (daga anode zuwa cathode) tare da ƙarancin faɗuwar ƙarfin lantarki na gaba kuma ta hana manyan ƙarfin lantarki na baya tare da ƙaramin ƙarar kwararar ruwa. Babban abin da ya bambanta shi ne kusan sifili na cajin dawowa baya, wanda shine babban iyaka na diode na haɗin PN na silicon. Wannan halayyar ta sa ya zama mai dacewa sosai don da'irori da ke aiki a manyan mitocin sauyawa.

1.1 Fa'idodi na Asali da Kasuwar da Ake Nufi

Babban fa'idodin wannan SiC Schottky diode ya samo asali ne daga kaddarorin kayan aiki da tsarinsa. Ƙarancin ƙarfin lantarki na gaba (VF) yana rage asarar gudanarwa, yana inganta ingancin tsarin kai tsaye. Rashin adadi mai yawa na ma'ajiyar 'yan ƙasa yana kawar da asarar dawowa baya, yana ba da damar sauyawa cikin sauri ba tare da asarar sauyawa da ke da alaƙa da kuma tsangwama na lantarki (EMI) na diode na dawowa da sauri na silicon ba. Wannan yana ba da damar ƙirar ƙananan tsarin wutar lantarki, masu sauƙi, da inganci ta hanyar ba da damar yin aiki da manyan mitoci, wanda hakan kuma yana rage girman abubuwan da ba su da ƙarfi kamar inductors da transformers.

Babban ƙarfin kwararar igiyar ruwa da matsakaicin zafin haɗin gwiwa na 175°C suna haɓaka ƙarfin tsari da amincinsa. Na'urar kuma tana bin ka'idojin muhalli (Ba ta da gubar, Ba ta da Halogen, RoHS). Waɗannan fasalin sun sa ya dace musamman don aikace-aikace masu wahala a cikin na'urorin lantarki na zamani. Kasuwannin da ake nufi sun haɗa da wadatar wutar lantarki na masana'antu, tsarin makamashi mai sabuntawa, da sarrafa wutar lantarki na muhimman abubuwan more rayuwa.

2. Bincike Mai zurfi na Ma'auni na Fasaha

Cikakkiyar fahimtar ma'auni na lantarki da na zafi yana da mahimmanci don ƙirar da'ira mai aminci da tabbatar da cewa na'urar tana aiki a cikin yankinta na aiki mai aminci (SOA).

2.1 Matsakaicin Matsakaicin Matsayi

Waɗannan ƙimar suna ayyana iyakokin damuwa waɗanda, idan an wuce su, na iya haifar da lalacewa na dindindin ga na'urar. Ba a nufin su don yanayin aiki na yau da kullun ba.

• Matsakaicin Ƙarfin Lantarki na Baya Maimaitawa (VRRM):650V. Wannan shine matsakaicin ƙarfin lantarki na baya da za a iya amfani da shi akai-akai.
• Ci gaba da Kwararar Gaba (IF):10A. Wannan shine matsakaicin DC na yanzu da na'urar za ta iya ɗauka akai-akai, wanda aka iyakance ta hanyar juriyar zafi da matsakaicin zafin haɗin gwiwa.
• Kwararar Gaba Ba Maimaitawa (IFSM):30A (TC=25°C, tp=10ms, sine rabin kalaman). Wannan ƙimar tana nuna ikon diode na jure ƙananan lokutan kwararar ruwa, kamar waɗanda ake fuskanta yayin farawa ko yanayin kuskure.
• Zafin Haɗin gwiwa (TJ):Matsakaicin 175°C. Yin amfani da na'urar a wannan iyaka ko kusa da shi zai rage amincinta na dogon lokaci.
• Jimlar Ragewar Wutar Lantarki (PD):88W (TC=25°C). An samo wannan ƙimar daga juriyar zafi da matsakaicin izinin hawan zafi.

2.2 Halaye na Lantarki

Waɗannan sune ma'auni na yau da kullun da matsakaici/ƙarami na aiki a ƙarƙashin ƙayyadaddun yanayin gwaji.

• Ƙarfin Lantarki na Gaba (VF):1.48V na yau da kullun, matsakaicin 1.85V a IF=10A, TJ=25°C. Wannan ma'auni yana ƙaruwa da zafin jiki, yana kaiwa kusan 1.9V a TJ=175°C. Ƙarancin VF shine babban fa'ida don rage asarar gudanarwa.
• Kwararar Baya (IR):2µA na yau da kullun, matsakaicin 60µA a VR=520V, TJ=25°C. Kwararar ruwa tana ƙaruwa sosai da zafin jiki (20µA na yau da kullun a 175°C), wanda dole ne a yi la'akari da shi a cikin ƙirar zafi.
• Jimlar Cajin Capacitive (QC):15nC na yau da kullun a VR=400V, TJ=25°C. Wannan ma'auni ne mai mahimmanci don lissafin asarar sauyawa a aikace-aikacen mitoci masu yawa. Ƙananan ƙimar QC yana tabbatar da ƙananan asarar sauyawa da ke da alaƙa da wannan na'urar Schottky.
• Jimlar Capacitance (Ct):Wannan ya dogara da ƙarfin lantarki. Ƙimar yau da kullun sune 256pF a VR=1V, 29pF a VR=200V, da 23pF a VR=400V (f=1MHz). Rage capacitance tare da ƙara ƙarfin lantarki na baya halayyar capacitance ne na haɗin gwiwa.

2.3 Halaye na Zafi

Ingantaccen kawar da zafi yana da mahimmanci don kiyaye aiki da aminci.

• Juriyar Zafi, Haɗin gwiwa-zuwa-Harsashi (RθJC):1.7°C/W na yau da kullun. Wannan ƙaramin ƙimar yana nuna ingantaccen canja wurin zafi daga haɗin gwiwar semiconductor zuwa tab ɗin ƙarfe (harsashi) na kunshe na TO-220. Dole ne a haɗa harsashin da kyau zuwa heatsink don amfani da wannan halayyar gaba ɗaya. Ba a ƙayyade matsakaicin ƙimar ba, don haka masu ƙira yakamata su yi amfani da ƙimar yau da kullun tare da madaidaicin abubuwan rage ƙima.

3. Binciken Lanƙwan Aiki

Takardar bayanin tana ba da wakilci na hoto da yawa na halayen na'urar, waɗanda ke da mahimmanci don cikakken binciken ƙira fiye da maki bayanan da aka jera.

3.1 Halayen VF-IF

Wannan lanƙwasa yana nuna alaƙar tsakanin ƙarfin lantarki na gaba da kwararar gaba a daban-daban zafin haɗin gwiwa. Yana nuna kyakkyawan ma'aunin zafi na VF a zahiri. Wannan halayyar tana da amfani don raba kwarara lokacin da aka haɗa diode da yawa a layi daya, saboda yana ba da matakin daidaita kai kuma yana taimakawa hana guduwar zafi.

3.2 Halayen VR-IR

Wannan jadawali yana jera kwararar ruwa ta baya akan ƙarfin lantarki na baya, yawanci a yanayin zafi da yawa. Yana nuna haɓakar haɓakar kwararar ruwa tare da ƙarfin lantarki da zafin jiki, yana sanar da masu ƙira game da asarar kashewa da kwanciyar hankali na zafi a ƙarƙashin babban ƙarfin lantarki na toshewa.

3.3 Matsakaicin Ip – Halayen TC

Wannan lanƙwasa na rage ƙima yana nuna yadda matsakaicin izinin ci gaba da kwararar gaba (Ip) yana raguwa yayin da zafin harsashi (TC) ya ƙaru. Aikace-aikace ne kai tsaye na ragewar wutar lantarki da iyakokin juriyar zafi. Dole ne masu ƙira su yi amfani da wannan jadawali don zaɓar heatsink mai dacewa dangane da yanayin yanayin aiki da kwararar da ake buƙata.

3.4 Juriyar Zafi na Wucin Gadi

Lanƙwasa na juriyar zafi na wucin gadi da faɗin bugun jini (ZθJC) yana da mahimmanci don kimanta hawan zafi yayin ƙananan bugun jini na gajeren lokaci, kamar waɗanda ke cikin aikace-aikacen sauyawa. Yana nuna cewa don ƙananan bugun jini, ingantaccen juriyar zafi ya fi ƙimar kwanciyar hankali ƙasa, yana ba da damar na'urar ta ɗauki babban ƙarfin wutar lantarki na tsawon lokaci.

4. Bayanin Injiniya da Kunshe

Na'urar tana amfani da daidaitaccen kunshe na TO-220-2L, wanda aka ƙera don hawa ta cikin rami tare da haɗa ƙusa zuwa heatsink.

4.1 Girman Kunshe da Tsari

Cikakken zanen injiniya yana ba da duk mahimman girmansu a cikin milimita. Manyan girmansu na jikin kunshe sun kai kusan 15.6mm (D) x 9.99mm (E) x 4.5mm (A). Tsakanin jagora (nisa tsakanin cibiyoyin fil) shine 5.08mm (e1). Hakanan an ƙayyade girman ramin hawa da girman tab don tabbatar da ingantaccen haɗin injiniya da zafi tare da heatsink.

4.2 Tsarin Fil da Gano Polarity

Na'urar tana da jagora biyu (2L). Fil 1 shine Cathode (K), kuma Fil 2 shine Anode (A). Muhimmanci, tab ɗin ƙarfe ko harsashi na kunshe na TO-220 an haɗa shi da lantarki zuwa Cathode. Dole ne a yi la'akari da wannan yayin haɗawa don hana gajerun hanyoyin sadarwa, saboda heatsink yawanci yana cikin yuwuwar ƙasa. Ana buƙatar rufi mai dacewa (misali, insulator na mica ko silicone tare da kushin zafi) idan heatsink ba ya cikin yuwuwar cathode.

4.3 Tsarin Ƙasar PCB da Ake Shawarar

An ba da shirin kushin da aka ba da shawara don hawa saman jagora (bayan ƙirƙira). Wannan yana taimakawa wajen ƙirar PCB don hanyoyin siyar da igiyar ruwa ko sake kunnawa, yana tabbatar da haɗin gwiwar siyar da ingantaccen tallafi na injiniya.

5. Jagororin Aikace-aikace da Abubuwan Ƙira

5.1 Da'irorin Aikace-aikacen Yau da Kullun

Wannan diode yana da fa'ida musamman a cikin mahimman hanyoyin canza wutar lantarki da yawa:

• Gyaran Factor na Wutar Lantarki (PFC):A cikin matakan haɓaka PFC, saurin sauyawa da ƙananan asarar dawowa na diode suna da mahimmanci don inganci mai yawa a manyan mitocin layi, yana taimakawa cimma ƙaƙƙarfan ƙa'idodin inganci kamar 80 PLUS.
• Masu Juyawa na Rana:Ana amfani da su a matakin haɓaka ko a matsayin diode masu tafiya kyauta, suna rage asara, suna ƙara yawan girbin makamashi daga allunan hoto.
• Kayayyakin Wutar Lantarki marasa Katsewa (UPS) & Motoci:A cikin matakan juyawa na fitarwa ko a matsayin diode na matsewa/tashi kyauta, suna rage asarar sauyawa, suna ba da damar yin sauyawa da yawa wanda zai iya haifar da ƙananan abubuwan maganadisu da ingantaccen ingancin siffar fitarwa.
• Kayayyakin Wutar Lantarki na Cibiyar Bayanai:Inganci mai yawa yana da mahimmanci don rage farashin aiki (wutar lantarki) da buƙatun sanyaya. Wannan diode yana ba da gudummawa kai tsaye don cimma babban yawan wutar lantarki da inganci a cikin wadatar wutar lantarki na uwar garken.

5.2 Muhimman Abubuwan Ƙira

• Heatsinking:Ƙaramin RθJC yana da tasiri ne kawai tare da isasshen heatsink. An ƙayyade ƙarfin juzu'i don ƙusa (M3 ko 6-32) a matsayin 8.8 N·m (kusan 78 lbf-in) don tabbatar da ingantaccen tuntuɓar zafi ba tare da lalata kunshe ba.
• Aiki A Layi Daya:Kyakkyawan ma'aunin zafi na VF yana sauƙaƙe haɗin layi ɗaya don babban ikon kwarara. Duk da haka, ana ba da shawarar kulawa mai kyau ga daidaiton shimfidar wuri (daidaitattun alamun tsawon) da raba heatsinking har yanzu don tabbatar da daidaiton raba kwarara.
• Damuwa na Ƙarfin Lantarki:A cikin da'irori tare da nauyin inductive ko inductance na parasitic, ƙarfin lantarki na iya faruwa yayin kashewa. Da'irorin Snubber ko RC dampers na iya zama dole don matse waɗannan ƙyallen kuma su kare diode.
• ESD da Gudanarwa:Duk da cewa ya fi ƙarfin wasu semiconductors, Schottky diodes na iya zama masu hankali ga zubar da lantarki na electrostatic. Yakamata a kiyaye matakan kariya na ESD na yau da kullun yayin sarrafawa da haɗawa.

6. Kwatancen Fasaha da Trends

6.1 Kwatanta da Diode na Silicon

Idan aka kwatanta da diode na dawowa da sauri na silicon (FRD) mai kama da ƙarfin lantarki da ƙimar kwarara, wannan SiC Schottky diode yana ba da: 1) Ƙananan cajin dawowa baya (Qrr) da lokaci (trr) sosai, yana kawar da asarar dawowa baya da hayaniyar da ke da alaƙa. 2) Babban matsakaicin yanayin aiki na haɗin gwiwa (175°C idan aka kwatanta da yawanci 150°C na silicon). 3) Ƙaramin faɗuwar ƙarfin lantarki na gaba, amma wannan sau da yawa yana fiye da ceton asarar sauyawa a mitoci sama da ~30kHz. Fa'idodin matakin tsarin sun haɗa da ƙananan heatsinks, ƙananan maganadisu, da mafi girman inganci gabaɗaya.

6.2 Ka'idar Aiki da Trends

An kafa Schottky diode ta hanyar haɗin gwiwar ƙarfe-semiconductor, sabanin haɗin PN. Wannan na'urar mai ɗaukar mafi yawa ba ta da ma'ajiyar 'yan ƙasa, wanda shine tushen saurin sauyawa. Silicon Carbide (SiC) a matsayin kayan semiconductor yana ba da mafi faɗin bandgap fiye da silicon, yana haifar da mafi ƙarfin ƙarfin rushewa, mafi girman yawan wutar lantarki, da mafi girman matsakaicin yanayin aiki. Trends a cikin na'urorin lantarki yana ƙwarai zuwa ga semiconductors masu faɗin bandgap kamar SiC da Gallium Nitride (GaN) don tura iyakokin inganci, mitoci, da yawan wutar lantarki. Wannan diode yana wakiltar cikakken kayan aiki da aka karɓa sosai a cikin wannan yanayin, musamman don aikace-aikacen ƙarfin lantarki inda fa'idodin SiC suka fi bayyana.

7. Tambayoyin da ake yawan yi (FAQ)

Q: Shin za a iya amfani da wannan diode kai tsaye a matsayin maye gurbin diode na dawowa da sauri na silicon a cikin ƙirar da ke akwai?

A: Ba kai tsaye ba tare da kimantawa. Duk da yake pinout na iya dacewa, bambance-bambance a cikin ƙarfin lantarki na gaba, halayyar sauyawa, da buƙatar heatsink keɓantacce na cathode (idan ainihin ƙirar tana da tab ɗin da aka haɗa zuwa wani ƙarfin lantarki wanda ba na cathode ba) dole ne a sake duba su sosai. Ana ba da shawarar kwaikwayon da'ira da gwaji sosai.

Q: Menene mahimmancin ma'aunin QC (Jimlar Cajin Capacitive)?

A> QC yana wakiltar cajin da ke da alaƙa da capacitance na haɗin gwiwa. Yayin sauyawa mai yawan mitoci, dole ne a caje wannan capacitance kuma a cire shi kowane zagayowar, yana haifar da asarar sauyawa na capacitive daidai da QC * V * f. Ƙananan ƙimar QC na wannan SiC diode yana rage waɗannan asarar, waɗanda suka zama mahimmanci a manyan mitoci.

Q: Ta yaya kyakkyawan ma'aunin zafi na VF yana hana guduwar zafi a cikin tsararrun layi ɗaya?

A: Idan ɗaya diode a cikin nau'i-nau'i biyu ya fara ɗaukar ƙarin kwarara, yana dumama. VF ɗinsa yana ƙaruwa saboda kyakkyawan ma'aunin zafi, wanda hakan kuma yana rage bambancin ƙarfin lantarki da ke motsa kwarara ta gare shi idan aka kwatanta da diode mai sanyi. Wannan hanyar amsawa ta halitta tana ƙarfafa kwarara ta koma diode mai sanyi, tana haɓaka daidaito.

Q: Menene buƙatun ajiya da sarrafawa?

A: Yakamata a adana na'urar a cikin jakar anti-static a cikin yanayi mai kewayon zafin jiki na -55°C zuwa +175°C da ƙarancin zafi. Yakamata a bi jagororin IPC/JEDEC na yau da kullun don sarrafa abubuwan da ke da damuwa na danshi (idan ya dace) da na'urori masu hankali na ESD.