L4981X中文資料意法半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)
| 廠商型號(hào) |
L4981X |
| 功能描述 | POWER FACTOR CORRECTOR |
| 文件大小 |
228.04 Kbytes |
| 頁(yè)面數(shù)量 |
17 頁(yè) |
| 生產(chǎn)廠商 | STMicroelectronics |
| 企業(yè)簡(jiǎn)稱(chēng) |
STMICROELECTRONICS【意法半導(dǎo)體】 |
| 中文名稱(chēng) | 意法半導(dǎo)體集團(tuán)官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-7-31 19:00:00 |
| 人工找貨 | L4981X價(jià)格和庫(kù)存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
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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(hào)：
L4981X
- 制造商：
STMICROELECTRONICS
- 制造商全稱(chēng)：
STMicroelectronics
- 功能描述：
POWER FACTOR CORRECTOR
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
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！！ |
詢(xún)價(jià) | ||
ST |
22+ |
SOP20 |
25000 |
只做原裝進(jìn)口現(xiàn)貨,專(zhuān)注配單 |
詢(xún)價(jià) | ||
ST |
14+ |
SSOP10 |
30 |
一級(jí)代理,專(zhuān)注軍工、汽車(chē)、醫(yī)療、工業(yè)、新能源、電力 |
詢(xún)價(jià) | ||
STMicr |
25+ |
25000 |
原廠原包 深圳現(xiàn)貨 主打品牌 假一賠百 可開(kāi)票! |
詢(xún)價(jià) | |||
ST(意法) |
23+ |
NA |
20094 |
正納10年以上分銷(xiāo)經(jīng)驗(yàn)原裝進(jìn)口正品做服務(wù)做口碑有支持 |
詢(xún)價(jià) | ||
ST |
23+ |
SOP10 |
64 |
原裝現(xiàn)貨假一賠十 |
詢(xún)價(jià) | ||
ST/意法 |
24+ |
SOP20 |
17400 |
原裝現(xiàn)貨假一賠十 |
詢(xún)價(jià) | ||
ST |
2511 |
原廠原封 |
16900 |
電子元器件采購(gòu)降本 30%!盈慧通原廠直采,砍掉中間差價(jià) |
詢(xún)價(jià) | ||
ST/意法 |
23+ |
SOP-20 |
89630 |
當(dāng)天發(fā)貨全新原裝現(xiàn)貨 |
詢(xún)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(wàn) |
詢(xún)價(jià) |
