Sekela ikhotheshini ye-BOM Entsha Yoqobo Edidiyelwe Circuit LP8867QPWPRQ1

Sekela ikhotheshini ye-BOM Entsha Yoqobo Ehlanganisiwe Yesekethe LP8867QPWPRQ1 Isithombe Esifakiwe

incazelo emfushane:

I-LP8867-Q1, LP8869-Q1 iyinhlangano yezimoto ehlanganiswe kakhulu, ephansi-EMI, kulula ukuyisebenzisa umshayeli we-LED ene-DC-DC converter.Isiguquli se-DC-DC sisekela kokubili ukusebenza kwemodi ye-boost kanye ne-SEPIC.Idivayisi inamasinki amanje amane noma amathathu anemba okuphezulu angahlanganiswa ukuze akwazi ukusebenza manje.

Isiguquli se-DC-DC sinokulawula okuphumayo okuguquguqukayo okusekelwe kuma-voltage aya phambili e-LED.Lesi sici sinciphisa ukusetshenziswa kwamandla ngokulungisa i-voltage ibe ileveli ephansi eyanele kuzo zonke izimo.Ukuze kuncishiswe i-EMI i-DC-DC isekela i-spectrum yokusabalala yokushintsha imvamisa nokuvumelanisa kwangaphandle ngephinikhodi ezinikele.Ifrikhwensi yobubanzi obulungisekayo ivumela i-LP886x-Q1 ukuthi igweme ukuphazamiseka kwebhendi yefrikhwensi ebucayi.

Ibanga lamandla kagesi okufakwayo we-LP886x-Q1 lisuka ku-4.5 V ukuya ku-40 V ukuze lisekele ukuqalisa kokuma kwezimoto nesimo sokulahla umthwalo.I-LP886x-Q1 ihlanganisa izici eziningi zokutholwa kwamaphutha.

Thumela i-imeyili kithi Landa i-Datesheet

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimfanelo Zomkhiqizo

UHLOBO	DESCRIPTION	KHETHA
Isigaba	Izifunda Ezihlanganisiwe (ICs) I-PMIC Abashayeli be-LED
Mfr	Texas Instruments
Uchungechunge	Ezezimoto, AEC-Q100
Iphakheji	I-Tape & Reel (TR) Cut Tape (CT) I-Digi-Reel®
Isimo somkhiqizo	Iyasebenza
Uhlobo	I-DC DC Regulator
I-Topology	I-SEPIC, Step-Up (Boost)
I(izi)shitshi zangaphakathi	Yebo
Inombolo Yemiphumela	3
I-Voltage - Supply (Min)	4.5V
I-Voltage - Supply (Ubukhulu)	45V
I-Voltage - Okukhiphayo	6V ~ 45V
Okwamanje - Okukhiphayo / Isiteshi	120mA
Imvamisa	300kHz ~ 2.2MHz
Ukufiphala	I-PWM
Izinhlelo zokusebenza	Izimoto, I-Backlight
Izinga Lokushisa Lokusebenza	-40°C ~ 125°C (TA)
Uhlobo Lokukhweza	INtaba Engaphezulu
Iphakheji / Ikesi	20-PowerTSSOP (0.173", 4.40mm Ububanzi)
Iphakheji Yedivayisi Yomhlinzeki	20-HTSSOP
Inombolo Yomkhiqizo Eyisisekelo	I-LP8867
SPQ	2000PCS

Imifanekiso ye-LP8867-Q1

I-AEC-Q100 Ifanelekele izicelo zezimoto:
- Izinga lokushisa ledivayisi grade 1:
- -40°C kuya +125°C, T_A
Ukuphepha okusebenzayo okunekhono
- Amadokhumenti atholakalayo ukusiza ukwakheka kwesistimu yokuphepha esebenzayo
3-, 4-Channel 120-mA osinki bamanje
- Isilinganiso esiphezulu sokufiphalisa esingu-10 000:1 ku-100 Hz
- Okufanayo kwamanje 1% (okujwayelekile)
- Intambo ye-LED yamanje ifika ku-120 mA isiteshi ngasinye
- Okukhiphayo kungahlanganiswa ngaphandle ukuze uthole amanani aphezulu ngeyunithi yezinhlamvu ngayinye
I-boost ehlanganisiwe nesiguquli se-SEPIC samandla eyunithi yezinhlamvu ze-LED
- Ububanzi bokusebenza kagesi wokufaka 4.5 V ukuya ku-40 V
- Amandla okukhipha amandla afika ku-45 V
- Kuhlanganiswe i-3.3-A Switch FET
- Ishintsha imvamisa ku-300 kHz iye ku-2.2 MHz
- Ishintsha okokufaka kokuvumelanisa
- Sabalalisa i-spectrum ye-EMI ephansi
Ukutholwa kwamaphutha nokuvikelwa
- Okukhipha iphutha
- I-voltage yokufaka i-OVP, i-UVLO ne-OCP
- Khulisa i-block SW OVP kanye ne-OVP ephumayo
- Ukutholwa kwephutha kwe-LED evulekile nefushane
- Ukulawula i-Power-Line FET yokuvikela ibhasi yebhethri
- Ukwehliswa kwamanje kwe-LED okuzenzakalelayo ngenzwa yangaphandle yokushisa
- Ukuvalwa kwe-thermal