Datasheet > L4986

L4986

更新时间： 2024-11-07 14:57:59

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		控制器高压功率因数校正
页数	文件大小	规格书
31页	2532K
描述
连续导通模式（CCM）PFC控制器具有高压启动和“电源正常”功能

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中文翻译

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数据手册

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L4986 数据手册

L4986

Datasheet

CCM PFC controller with high voltage startup

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

PGOOD_OUT and adjustable PGOOD_IN

SSOP10 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

Product status link

L4986

Industrial and medical SMPS according to IEC 60601-1-2

L4986A

L4986B

Description

L4986ATR

L4986BTR

The L4986 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.

Product summary

Order

codes

Package

Packaging

L4986A

L4986B

Tube

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.

Tape and

reel

SSOP10

L4986ATR

L4986BTR

The 800 V 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.

Tape and

reel

DS13768 - Rev 3 - January 2022

For further information contact your local STMicroelectronics sales office.

www.st.com

12 3 4 5 6 7...31

中文翻译

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与L4986相关器件

型号	品牌	获取价格	描述	数据表
L4987	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CPT120	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CPT120TR	STMICROELECTRONICS	获取价格	12V FIXED POSITIVE LDO REGULATOR, 0.7V DROPOUT, PSSO4, LEAD FREE, PPAK-5
L4987CPT30	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CPT30TR	STMICROELECTRONICS	获取价格	3V FIXED POSITIVE LDO REGULATOR, 0.7V DROPOUT, PSSO4, LEAD FREE, PPAK-5
L4987CPT33	STMICROELECTRONICS	获取价格	3.3V FIXED POSITIVE LDO REGULATOR, 0.7V DROPOUT, PSSO4, PPAK-5
L4987CPT50	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CPT87	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
L4987CPT87TR	STMICROELECTRONICS	获取价格	8.7V FIXED POSITIVE LDO REGULATOR, 0.7V DROPOUT, PSSO4, LEAD FREE, PPAK-5
L4987CXX120	ETC	获取价格	VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG

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