UC3845AN TI PWM Controller | 8-PDIP | 8.4V-30V, 1A Peak Gate Drive

Product Overview

The UC3845AN 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-PDIP package, offering a compact solution for power supply designs. The device operates with a supply voltage range of 8.4V to 30V and provides a 1A peak gate drive current, making it suitable for driving power MOSFETs and IGBTs. With its low startup current (typically 1mA) and high-frequency operation up to 500kHz, the UC3845AN enables efficient and reliable power conversion in various industrial and consumer electronics.

Detailed Technical Specifications

Key Features

• Current-mode control for improved transient response and simplified loop compensation
• Low startup current (1mA) for efficient power-up
• High-frequency operation up to 500kHz for reduced transformer size
• 1A peak gate drive for driving power MOSFETs and IGBTs
• Internal 5V reference with ±2% accuracy
• Undervoltage lockout with hysteresis for reliable startup
• Pulse-by-pulse current limiting for overcurrent protection
• 8-PDIP package for easy prototyping and through-hole assembly

Target Applications

• Off-line AC-DC power supplies for 5G base stations (e.g., rectifier modules)
• DC-DC converters for automotive dashboard power systems
• Battery chargers for industrial equipment
• LED lighting drivers for commercial lighting
• Telecom power supplies for network switches

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC3845AN. 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

UC3845AN 是德州儀器（TI）推出的一款高性能電流模式 PWM 控制器，專為離線式和 DC-DC 轉換器應用設計。它採用 8-PDIP 封裝，為電源設計提供緊湊的解決方案。該器件的工作電源電壓範圍為 8.4V 至 30V，提供 1A 峰值柵極驅動電流，適用於驅動功率 MOSFET 和 IGBT。憑藉低啟動電流（典型值 1mA）和高達 500kHz 的高頻工作能力，UC3845AN 可在各種工業和消費電子產品中實現高效可靠的電源轉換。

詳細技術參數

核心特性

• 電流模式控制，改善瞬態響應並簡化環路補償
• 低啟動電流 (1mA)，實現高效啟動
• 高達 500kHz 的高頻工作，減小變壓器尺寸
• 1A 峰值柵極驅動，適用於驅動功率 MOSFET 和 IGBT
• 內部 5V 參考電壓，精度 ±2%
• 帶滯回的欠壓鎖定，確保可靠啟動
• 逐脈衝電流限制，提供過流保護
• 8-PDIP 封裝，便於原型設計和通孔組裝

典型應用場景

• 5G 基站離線式 AC-DC 電源（例如整流模塊）
• 汽車儀表盤電源系統的 DC-DC 轉換器
• 工業設備電池充電器
• 商業照明 LED 驅動器
• 網絡交換機的電信電源

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC3845AN 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]