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L4981B中文資料
L4981B數(shù)據(jù)手冊規(guī)格書PDF詳情
DESCRIPTION
The L4981 I.C. provides the necessary features to achieve a very high power factor up to 0.99.
Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line current con
sumption.
The L4981 can be easily used in systems with mains voltages between 85V to 265V without any
line switch. This new PFC offers the possibility to work at fixed frequency (L4981A) or modulated
frequency (L4981B) optimizing the size of the in put filter; both the operating frequency modes
working with an average current mode PWM controller, maintaining sinusoidal line current without
slope compensation.
■ CONTROL BOOST PWM UP TO 0.99P.F.
■ LIMIT LINE CURRENT DISTORTION TO < 5
■ UNIVERSAL INPUT MAINS
■ FEED FORWARD LINE AND LOAD REGULATION
■ AVERAGE CURRENT MODE PWM FOR MINIMUM NOISE SENSITIVITY
■ HIGH CURRENT BIPOLAR AND DMOS TOTEM POLE OUTPUT
■ LOW START-UP CURRENT (0.3mA TYP.)
■ UNDER VOLTAGE LOCKOUT WITH HYSTERESIS AND PROGRAMMABLE TURN ON THRESHOLD
■ OVERVOLTAGE, OVERCURRENT PROTECTION
■ PRECISE 2 ON CHIP REFERENCE EXTERNALLY AVAILABLE
■ SOFT START
L4981B產(chǎn)品屬性
- 類型
描述
- 型號
L4981B
- 功能描述
功率因數(shù)校正 IC Very High Power
- RoHS
否
- 制造商
Fairchild Semiconductor
- 開關(guān)頻率
300 KHz
- 最大工作溫度
+ 125 C
- 安裝風(fēng)格
SMD/SMT
- 封裝/箱體
SOIC-8
- 封裝
Reel
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
STMicroelectronics |
24+ |
20-DIP |
36500 |
一級代理/放心采購 |
|||
ST/意法 |
22+ |
1000000 |
|||||
ST/意法 |
25+ |
SOP20 |
12496 |
ST/意法原裝正品L4981BD即刻詢購立享優(yōu)惠#長期有貨 |
|||
ST |
23+ |
SOP7.2mm |
12560 |
受權(quán)代理!全新原裝現(xiàn)貨特價(jià)熱賣! |
|||
ST |
24+ |
SOP20 |
8000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
|||
ST/意法 |
22+ |
SOP-2 |
12500 |
原廠原裝現(xiàn)貨 |
|||
ST |
25+ |
SOP-20 |
5000 |
原裝正品!!!公司現(xiàn)貨優(yōu)勢庫存!0755-83210901 |
|||
ST(意法) |
25+ |
5000 |
只做原裝 假一罰百 可開票 可售樣 |
||||
ST |
21+ |
SOP20 |
9800 |
只做原裝正品假一賠十!正規(guī)渠道訂貨! |
|||
ST |
22+ |
SOP20 |
21055 |
原裝正品，實(shí)單請聯(lián)系 |
L4981BD013TR 價(jià)格
參考價(jià)格：￥8.0765
L4981B 資料下載更多...
L4981B 芯片相關(guān)型號
- 315-028-521-212
- 387-007-544-101
- 387-007-544-102
- 387-007-544-103
- 387-007-544-104
- 387-007-544-158
- 40N20
- 40N25
- 58508-1
- 58509-1
- 58510-1
- 58524
- 58526
- 58571
- ADC1006S055
- ADC1006S070
- FKBB3151
- L4981A
- L4981AD013TR
- L4981BD013TR
- MAX4255EUK+T
- NJW4111
- NJW4128
- NJW4132
- NJW4140
- NJW4141
- PTN10-C11CB20
- PTN10-C11CC10
- PTN10-C11CC20
STMICROELECTRONICS相關(guān)芯片制造商
Datasheet數(shù)據(jù)表PDF頁碼索引
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STMicroelectronics 意法半導(dǎo)體集團(tuán)
中文資料: 162323條
意法半導(dǎo)體 (STMicroelectronics) 成立于1987年，總部位于瑞士日內(nèi)瓦和法國巴黎，是一家全球領(lǐng)先的半導(dǎo)體公司。意法半導(dǎo)體專注于設(shè)計(jì)、制造和銷售各種半導(dǎo)體解決方案，產(chǎn)品廣泛應(yīng)用于汽車、工業(yè)、消費(fèi)電子、通信等領(lǐng)域。 意法半導(dǎo)體的產(chǎn)品包括微控制器、模擬集成電路、功率半導(dǎo)體、傳感器等。公司擁有多個(gè)研發(fā)中心和生產(chǎn)基地，致力于技術(shù)創(chuàng)新和研發(fā)投入。意法半導(dǎo)體在全球范圍內(nèi)擁有廣泛的客戶群和合作伙伴，為客戶提供高品質(zhì)的產(chǎn)品和解決方案。 公司的使命是通過半導(dǎo)體技術(shù)推動(dòng)智能化和可持續(xù)發(fā)展，助力客戶取得成功。意法半導(dǎo)體不僅注重商業(yè)成功，還注重社會(huì)責(zé)任、環(huán)境保護(hù)和可持續(xù)經(jīng)營。企業(yè)價(jià)值觀包括創(chuàng)新、尊重
