L4981X中文資料意法半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書
| 廠商型號 |
L4981X |
| 功能描述 | POWER FACTOR CORRECTOR |
| 文件大小 |
228.04 Kbytes |
| 頁面數(shù)量 |
17 頁 |
| 生產(chǎn)廠商 | STMicroelectronics |
| 企業(yè)簡稱 |
STMICROELECTRONICS【意法半導(dǎo)體】 |
| 中文名稱 | 意法半導(dǎo)體集團(tuán)官網(wǎng) |
| 原廠標(biāo)識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時(shí)間 | 2025-4-4 23:00:00 |
| 人工找貨 | L4981X價(jià)格和庫存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
相關(guān)芯片規(guī)格書
更多L4981X規(guī)格書詳情
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
產(chǎn)品屬性
- 型號：
L4981X
- 制造商：
STMICROELECTRONICS
- 制造商全稱：
STMicroelectronics
- 功能描述：
POWER FACTOR CORRECTOR
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ST/意法 |
23+ |
NA/ |
8911 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號開票 |
詢價(jià) | ||
ST |
2016+ |
SOP20 |
5661 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
詢價(jià) | ||
ST |
2020+ |
SSOP-10 |
80000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
詢價(jià) | ||
ST |
24+ |
SOP20 |
20000 |
全新原廠原裝，進(jìn)口正品現(xiàn)貨，正規(guī)渠道可含稅?。?/div> |
詢價(jià) | ||
ST |
24+ |
SOP20 |
90000 |
一級代理商進(jìn)口原裝現(xiàn)貨、假一罰十價(jià)格合理 |
詢價(jià) | ||
STMicroelectronics |
23+ |
10-SOP |
3800 |
特惠實(shí)單價(jià)格秒出原裝正品假一罰萬 |
詢價(jià) | ||
ST/意法 |
23+ |
SOP20 |
32732 |
原裝正品代理渠道價(jià)格優(yōu)勢 |
詢價(jià) | ||
ST/意法 |
24+ |
SOP20 |
17400 |
原裝現(xiàn)貨假一賠十 |
詢價(jià) | ||
ST |
22+ |
SOP20 |
25000 |
只做原裝進(jìn)口現(xiàn)貨,專注配單 |
詢價(jià) | ||
ST |
20+ |
SOP20 |
5661 |
終端可以免費(fèi)供樣,支持BOM配單! |
詢價(jià) |
