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L4985BTR中文資料意法半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書

L4985BTR
廠商型號(hào)

L4985BTR

功能描述

CCM PFC controller with high voltage startupv

絲印標(biāo)識(shí)

L4985B

封裝外殼

SO-8

文件大小

1.2952 Mbytes

頁面數(shù)量

27

生產(chǎn)廠商 STMicroelectronics
企業(yè)簡(jiǎn)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(shí)
數(shù)據(jù)手冊(cè)

下載地址一下載地址二到原廠下載

更新時(shí)間

2025-2-1 20:00:00

L4985BTR規(guī)格書詳情

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

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫(kù)存 備注 價(jià)格
ST/意法
23+
NA/
312
優(yōu)勢(shì)代理渠道,原裝正品,可全系列訂貨開增值稅票
詢價(jià)
ST(意法半導(dǎo)體)
23+
SSOP10
6000
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詢價(jià)
ST
22+
NA
10000
原裝正品支持實(shí)單
詢價(jià)
STM
23+
TO-252
12800
正規(guī)渠道,只有原裝!
詢價(jià)
STMicroelectronics
23+
10-SOP
4500
只做原裝,假一賠十
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ST
22+
PPAK
5000
原裝現(xiàn)貨庫(kù)存.價(jià)格優(yōu)勢(shì)!!
詢價(jià)
STMicroelectronics
23+/24+
TO-252-5
8600
只供原裝進(jìn)口公司現(xiàn)貨+可訂貨
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ST
24+
PPAK
2920
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ST
24+
P-PAK
4219
原裝現(xiàn)貨
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STMicroelectronics
18+
ICREGLDO12V0.2APPAK
6800
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