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L4985中文資料
L4985數(shù)據(jù)手冊(cè)規(guī)格書PDF詳情
Features
Peak current mode CCM-operated
800 V high voltage startup with integrated input voltage sensing
Active input filter capacitor discharge
Proprietary multiplier “emulator” with minimum THD of line current in all
operating conditions (CCM and DCM)
Extremely few external components
Protections: feedback loop failure, OVP, OCP, inductor saturation, brown-in,
brownout (compliant to medical SMPS standards)
Inductor current sense
Disable and low consumption function
In-rush current monitoring
Soft-start for smooth startup
1.2 (@ Tj = 25 °C) internal reference voltage
65 kHz (A version) and 130 kHz (B version) switching frequency
SO8 package
Application
PFC pre-regulators for:
– IEC61000-3-2 and JEIDA-MITI compliant SMPS in excess of 1 kW
– Desktop PC, server, web server, game console
– High power LED luminaries
Description
The L4985 is a peak current-mode PFC controller for boost converter with a
proprietary multiplier “emulator” which in addition to the innovative THD optimizers
guarantee very low Total Harmonic Distortion (THD) performance in all operating
conditions. The device comes in a pin SO package and offers a high performance/
low-component count solution for CCM-operated boost PFC pre-regulators in
EN61000-3-2 and JEIDA-MITI compliant applications, in a power range that spans
from few hundred W to some kW.
The device, thanks to a proprietary off-time modulator, operates in quasi-fixed
frequency in all operating conditions. Two options are available, 65 kHz for A and
130 kHz for B.
The 800V high voltage start-up block includes also the circuitry to discharge the
X-capacitors of the EMI filter to a safe level. This allows the unit to meet safety
regulation (such as IEC 61010-1 or IEC 62368-1) without using the traditional
discharge resistor in parallel to the X-capacitors.
The device features low consumption and disable functions allowing usage in
applications supposed to comply even with the latest energy saving requirements
issued by Energy Star, the Department of Energy (DoE) in the United States, the
European Code of Conduct, the European Union’s Ecodesign Directive, and other
guidelines.
– Industrial and medical SMPS according to IEC 60601-1-2
L4985產(chǎn)品屬性
- 類型
描述
- 型號(hào)
L4985
- 功能描述
Voltage-Mode SMPS Controller
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
STMicroelectronics |
2024 |
2500 |
全新、原裝 |
||||
STMICROELECTRONICS |
24+ |
con |
348603 |
優(yōu)勢(shì)庫(kù)存,原裝正品 |
|||
STMicroelectronics |
23+/24+ |
TO-252-5 |
8600 |
只供原裝進(jìn)口公司現(xiàn)貨+可訂貨 |
|||
STMicroelectronics |
25+ |
TO-252-5 DPak(4 引線 + 接片 |
9350 |
獨(dú)立分銷商 公司只做原裝 誠(chéng)心經(jīng)營(yíng) 免費(fèi)試樣正品保證 |
|||
STMicroelectronics |
18+ |
ICREGLDO12V0.2APPAK |
6800 |
公司原裝現(xiàn)貨 |
|||
STMicroelectronics |
23+ |
10-SOP |
4500 |
只做原裝,假一賠十 |
|||
ST(意法半導(dǎo)體) |
24+ |
SOP-8 |
907 |
特價(jià)優(yōu)勢(shì)庫(kù)存質(zhì)量保證穩(wěn)定供貨 |
|||
ST(意法半導(dǎo)體) |
24+ |
SOP-8 |
5063 |
百分百原裝正品,可原型號(hào)開票 |
|||
ST/意法 |
25+ |
SMD |
202459 |
明嘉萊只做原裝正品現(xiàn)貨 |
|||
ST |
24+ |
DIP |
35200 |
一級(jí)代理分銷/放心采購(gòu) |
L4985 資料下載更多...
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STMICROELECTRONICS相關(guān)芯片制造商
Datasheet數(shù)據(jù)表PDF頁(yè)碼索引
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STMicroelectronics 意法半導(dǎo)體集團(tuán)
中文資料: 162551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(guó)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(yíng)。企業(yè)價(jià)值觀包括創(chuàng)新、尊重
