UC3843D TI Current Mode PWM Controller | 14-SOIC | 8.4V to 30V, 275kHz

Product Overview

The UC3843D from Texas Instruments is a high-performance current mode PWM controller designed for off-line and DC-to-DC converter applications. It features an 8.4V to 30V supply voltage range, a 275kHz oscillator frequency, and a 14-SOIC package. The device provides essential control and protection functions for efficient power conversion.

Detailed Technical Specifications

Key Features

• Current mode control for improved transient response
• Automatic feedforward compensation
• Pulse-by-pulse current limiting
• Under-voltage lockout with hysteresis
• Low startup current (0.5 mA typical)
• High frequency operation up to 275 kHz

Target Applications

The UC3843D is ideal for power supplies in 5G base stations, automotive dashboards, industrial control systems, and telecom equipment. Specific examples include DC-DC converters for 5G remote radio units, power management for infotainment systems, and isolated power supplies for motor drives.

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC3843D. 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

UC3843D 是德州儀器 (TI) 的高性能電流模式 PWM 控制器，專為離線式和 DC-DC 轉換器應用設計。其特點包括 8.4V 至 30V 的電源電壓範圍、275kHz 的振盪器頻率以及 14-SOIC 封裝。該器件提供必要的控制和保護功能，實現高效電源轉換。

詳細技術參數

核心特性

• 電流模式控制，改善瞬態響應
• 自動前饋補償
• 逐脈衝電流限制
• 帶滯後的欠壓鎖定
• 低啟動電流 (典型值 0.5 mA)
• 高頻工作可達 275 kHz

典型應用場景

UC3843D 適用於 5G 基站、汽車儀表板、工業控制系統和電信設備中的電源。具體應用包括 5G 遠端射頻單元的 DC-DC 轉換器、資訊娛樂系統的電源管理以及馬達驅動的隔離電源。

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC3843D 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]