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L4981X中文資料
L4981X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
L4981X產品屬性
- 類型
描述
- 型號
L4981X
- 制造商
STMICROELECTRONICS
- 制造商全稱
STMicroelectronics
- 功能描述
POWER FACTOR CORRECTOR
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
STMicroelectronics |
24+ |
10-SSOP |
36500 |
一級代理/放心采購 |
|||
STMicroelectronics |
23+ |
10-SOP |
3800 |
特惠實單價格秒出原裝正品假一罰萬 |
|||
STMicroelectronics |
2024 |
3522 |
全新、原裝 |
||||
ST/意法 |
24+ |
SOP20 |
5661 |
原裝優(yōu)勢公司現(xiàn)貨! |
|||
ST |
25+ |
原廠原封 |
16900 |
原裝，請咨詢 |
|||
ST |
2511 |
原廠原封 |
16900 |
電子元器件采購降本 30%!盈慧通原廠直采,砍掉中間差價 |
|||
ST |
2016+ |
SOP20 |
5661 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
|||
ST |
24+ |
SOP20 |
90000 |
一級代理商進口原裝現(xiàn)貨、假一罰十價格合理 |
|||
ST |
24+ |
SOP20 |
20000 |
全新原廠原裝，進口正品現(xiàn)貨，正規(guī)渠道可含稅?。?/div> |
|||
ST/意法 |
23+ |
SOP20 |
32732 |
原裝正品代理渠道價格優(yōu)勢 |
L4981X 資料下載更多...
L4981X 芯片相關型號
STMICROELECTRONICS相關芯片制造商
Datasheet數(shù)據(jù)表PDF頁碼索引
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STMicroelectronics 意法半導體集團
中文資料: 161735條
意法半導體 (STMicroelectronics) 成立于1987年，總部位于瑞士日內瓦和法國巴黎，是一家全球領先的半導體公司。意法半導體專注于設計、制造和銷售各種半導體解決方案，產品廣泛應用于汽車、工業(yè)、消費電子、通信等領域。 意法半導體的產品包括微控制器、模擬集成電路、功率半導體、傳感器等。公司擁有多個研發(fā)中心和生產基地，致力于技術創(chuàng)新和研發(fā)投入。意法半導體在全球范圍內擁有廣泛的客戶群和合作伙伴，為客戶提供高品質的產品和解決方案。 公司的使命是通過半導體技術推動智能化和可持續(xù)發(fā)展，助力客戶取得成功。意法半導體不僅注重商業(yè)成功，還注重社會責任、環(huán)境保護和可持續(xù)經營。企業(yè)價值觀包括創(chuàng)新、尊重
