UC3870DW-2 TI Power Management IC | Phase-Shifted PWM Controller | 0-100% Duty Cycle, 1MHz

Product Overview

The UC3870DW-2 from Texas Instruments is a high-performance phase-shifted PWM controller designed for full-bridge resonant converters. It integrates all necessary functions for zero-voltage switching (ZVS) and zero-current switching (ZCS) topologies, enabling high efficiency and reduced electromagnetic interference (EMI). The device operates from a 10V to 20V supply and provides precise control of output voltage with a 0% to 100% duty cycle range. Its 1MHz oscillator frequency allows for compact magnetic designs, making it ideal for high-density power supplies.

Detailed Technical Specifications

Key Features

• Phase-shifted PWM control for ZVS/ZCS operation
• Programmable soft-start and overcurrent protection
• 1MHz oscillator with synchronization capability
• Under-voltage lockout (UVLO) with hysteresis
• Low startup current (150µA typical)
• Wide duty cycle range for flexible output regulation

Target Applications

• Telecom power supplies (e.g., 5G base station rectifiers)
• Industrial DC-DC converters (e.g., server power supplies)
• Automotive battery chargers (e.g., electric vehicle onboard chargers)
• LED lighting drivers (e.g., high-bay LED drivers)
• Medical equipment power (e.g., MRI system power modules)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC3870DW-2. 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

UC3870DW-2 是德州儀器推出的一款高性能相移PWM控制器，專為全橋諧振轉換器設計。它集成了零電壓開關（ZVS）和零電流開關（ZCS）拓撲所需的所有功能，可實現高效率並降低電磁干擾（EMI）。該器件在10V至20V電源下工作，提供0%至100%的佔空比範圍，精確控制輸出電壓。其1MHz振盪器頻率允許緊湊的磁性設計，非常適合高密度電源。

詳細技術參數

核心特性

• 相移PWM控制，實現ZVS/ZCS操作
• 可編程軟啟動和過流保護
• 1MHz振盪器，支持同步
• 帶滯回的欠壓鎖定（UVLO）
• 低啟動電流（典型值150µA）
• 寬佔空比範圍，實現靈活的輸出調節

典型應用場景

• 電信電源（例如5G基站整流器）
• 工業DC-DC轉換器（例如服務器電源）
• 汽車電池充電器（例如電動汽車車載充電器）
• LED照明驅動器（例如高棚LED驅動器）
• 醫療設備電源（例如MRI系統電源模塊）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC3870DW-2 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]