L4984D ST Power Factor Correction Controller | 10-SOP | 10V-22.5V Supply, 250kHz

Product Overview

The L4984D is a high-performance Power Factor Correction (PFC) controller from STMicroelectronics, designed for transition-mode (TM) operation. It integrates advanced features to achieve high power factor and low harmonic distortion in AC-DC converters. The device operates from a supply voltage range of 10V to 22.5V and features a switching frequency up to 250kHz. Housed in a compact 10-SOP package, it is ideal for space-constrained applications requiring efficient power management.

Detailed Technical Specifications

Key Features

• Transition-mode PFC controller with high accuracy
• Low start-up current (30 µA typical)
• Programmable output voltage via feedback pin
• Overvoltage protection (OVP) and undervoltage lockout (UVLO)
• Boost inductor demagnetization detection
• Internal 250 kHz oscillator with frequency modulation for EMI reduction

Target Applications

• 5G base station power supplies
• LED drivers for street lighting
• AC-DC adapters for laptops and monitors
• Industrial power supplies for automation equipment
• Server and telecom power systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for L4984D. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

L4984D是意法半導體（ST）推出的高性能功率因數校正（PFC）控制器，專為過渡模式（TM）操作設計。它集成了先進功能，可在AC-DC轉換器中實現高功率因數和低諧波失真。該器件的工作電源電壓範圍為10V至22.5V，開關頻率高達250kHz。採用緊湊的10-SOP封裝，非常適合需要高效電源管理的空間受限應用。

詳細技術參數

核心特性

• 過渡模式PFC控制器，精度高
• 低啟動電流（典型值30 µA）
• 通過反饋引腳可編程輸出電壓
• 過壓保護（OVP）和欠壓鎖定（UVLO）
• 升壓電感去磁檢測
• 內部250 kHz振盪器，帶頻率調製以降低EMI

典型應用場景

• 5G基站電源
• 路燈LED驅動器
• 筆記本電腦和顯示器的AC-DC適配器
• 自動化設備的工業電源
• 服務器和電信電源系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 L4984D 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]