UC2855ADWTR TI Power Factor Correction IC | 20-SOIC | 12V/500mA Gate Drive, 250kHz

Product Overview

The UC2855ADWTR is a high-performance power factor correction (PFC) controller from Texas Instruments, designed to achieve near-unity power factor and low total harmonic distortion (THD) in AC-DC power supplies. It operates in average current mode control with a wide input voltage range, making it suitable for applications requiring high efficiency and compliance with international harmonic standards such as IEC 61000-3-2. The device integrates a 12V/500mA gate driver, a 1.5% accurate voltage reference, and protection features including overvoltage, undervoltage lockout, and cycle-by-cycle current limiting. Housed in a 20-pin SOIC package, the UC2855ADWTR offers a compact solution for power supplies up to several kilowatts.

Detailed Technical Specifications

Key Features

• Average current mode control for stable PFC operation
• Low startup current (100µA typical)
• Programmable switching frequency up to 250kHz
• Overvoltage and undervoltage protection
• Cycle-by-cycle current limiting
• 1.5% accurate voltage reference
• Soft-start capability

Target Applications

• 5G base station power supplies (e.g., 48V rectifiers)
• Automotive dashboard power modules
• Industrial motor drives and inverters
• LED lighting drivers (high-power street lighting)
• Telecom and server power supplies

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC2855ADWTR. 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

UC2855ADWTR 是德州儀器（TI）推出的一款高性能功率因數校正（PFC）控制器，專為 AC-DC 電源設計，可實現接近 1 的功率因數和低總諧波失真（THD）。它採用平均電流模式控制，支援寬輸入電壓範圍，適用於需要高效率並符合 IEC 61000-3-2 等國際諧波標準的應用。該器件整合了 12V/500mA 閘極驅動器、1.5% 精度的電壓參考以及過壓、欠壓鎖定和逐週期電流限制等保護功能。UC2855ADWTR 採用 20 引腳 SOIC 封裝，為高達數千瓦的電源提供緊湊解決方案。

詳細技術參數

核心特性

• 平均電流模式控制，實現穩定 PFC 操作
• 低啟動電流（典型值 100µA）
• 可程式開關頻率，最高 250kHz
• 過壓和欠壓保護
• 逐週期電流限制
• 1.5% 精度電壓參考
• 軟啟動功能

典型應用場景

• 5G 基地台電源（例如 48V 整流器）
• 汽車儀表板電源模組
• 工業馬達驅動器和逆變器
• LED 照明驅動器（高功率路燈）
• 電信和伺服器電源

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC2855ADWTR 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]