Ṣe atilẹyin ọrọ asọye BOM Tuntun Iṣepọ Isopọpọ Atilẹba LP8867QPWPRQ1
Ọja eroja
| ORISI | Apejuwe | Yan |
| Ẹka | Awọn iyika Iṣọkan (ICs) |
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| Mfr | Texas Instruments |
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| jara | Oko, AEC-Q100 |
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| Package | Teepu & Reel (TR) Teepu Ge (CT) Digi-Reel® |
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| Ipo ọja | Ti nṣiṣe lọwọ |
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| Iru | DC DC Alakoso |
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| Topology | SEPIC, Igbesoke (Imudara) |
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| Yipada (awọn) inu | Bẹẹni |
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| Nọmba ti Ijade | 3 |
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| Foliteji - Ipese (min) | 4.5V |
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| Foliteji - Ipese (Max) | 45V |
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| Foliteji - O wu | 6V ~ 45V |
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| Lọwọlọwọ - Ijade / ikanni | 120mA |
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| Igbohunsafẹfẹ | 300kHz ~ 2.2MHz |
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| Dimming | PWM |
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| Awọn ohun elo | Mọto, Backlight |
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| Awọn iwọn otutu ti nṣiṣẹ | -40°C ~ 125°C (TA) |
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| Iṣagbesori Iru | Oke Oke |
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| Package / Ọran | 20-PowerTSSOP (0.173 ", 4.40mm Ìbú) |
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| Package Device Olupese | 20-HTSSOP |
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| Nọmba Ọja mimọ | LP8867 | |
| SPQ | 2000PCS |
Awọn ẹya ara ẹrọ fun LP8867-Q1
- AEC-Q100 Ti o yẹ fun awọn ohun elo adaṣe:
- Iwọn otutu ẹrọ 1:
- -40°C si +125°C, TA
- Ailewu iṣẹ-ṣiṣe ti o lagbara
- Iwe ti o wa lati ṣe iranlọwọ apẹrẹ eto aabo iṣẹ
- 3-, 4-ikanni 120-mA lọwọlọwọ ifọwọ
- Iwọn dimming giga ti 10 000: 1 ni 100 Hz
- Ibamu lọwọlọwọ 1% (aṣoju)
- Okun LED lọwọlọwọ to 120 mA fun ikanni kan
- Awọn abajade le ni idapo ni ita fun lọwọlọwọ giga fun okun
- Igbega iṣọpọ ati oluyipada SEPIC fun agbara okun LED
- Iwọn ọna foliteji ti nwọle 4.5 V si 40 V
- Foliteji ti njade soke si 45 V
- Ese 3.3-A Yipada FET
- Yipada igbohunsafẹfẹ 300 kHz to 2,2 MHz
- Yiyipada titẹ sii amuṣiṣẹpọ
- Itan julọ.Oniranran fun EMI kekere
- Wiwa aṣiṣe ati aabo
- Ijade aṣiṣe
- OVP titẹ sii, UVLO ati OCP
- Igbelaruge Àkọsílẹ SW OVP ki o si wu OVP
- LED ìmọ ati kukuru aṣiṣe erin
- Agbara-Laini FET iṣakoso fun aabo bosi batiri
- Idinku lọwọlọwọ LED aifọwọyi pẹlu sensọ iwọn otutu ita
- Tiipa igbona
Apejuwe fun LP8867-Q1
LP8867-Q1, LP8869-Q1 jẹ adaṣe adaṣe-giga, EMI kekere, rọrun-lati-lo awakọ LED pẹlu oluyipada DC-DC.Oluyipada DC-DC ṣe atilẹyin igbelaruge mejeeji ati iṣẹ ipo SEPIC.Awọn ẹrọ ni o ni mẹrin tabi mẹta ga-konge lọwọlọwọ ifọwọ ti o le wa ni idapo fun awọn ti o ga lọwọlọwọ agbara.
Oluyipada DC-DC ni iṣakoso foliteji adaṣe adaṣe ti o da lori awọn foliteji iwaju LED.Ẹya yii dinku agbara agbara nipasẹ satunṣe foliteji si ipele ti o kere julọ ni gbogbo awọn ipo.Fun idinku EMI DC-DC n ṣe atilẹyin spekitiriumu kaakiri fun iyipada igbohunsafẹfẹ ati amuṣiṣẹpọ ita pẹlu pin igbẹhin.Igbohunsafẹfẹ adijositabulu jakejado gba LP886x-Q1 lati yago fun idamu fun ẹgbẹ igbohunsafẹfẹ ifura.
Iwọn foliteji titẹ sii fun LP886x-Q1 jẹ lati 4.5 V si 40 V lati ṣe atilẹyin iduro-idaduro adaṣe ati ipo idalẹnu fifuye.LP886x-Q1 ṣepọ awọn ẹya wiwa aṣiṣe lọpọlọpọ.
