UC3846Q TI PWM Controller | 20-PLCC (9x9) | Current Mode, 500kHz

Product Overview

The UC3846Q from Texas Instruments is a high-performance current-mode PWM controller designed for off-line and DC-to-DC converter applications. Housed in a compact 20-PLCC (9x9 mm) package, it offers improved line and load regulation, enhanced dynamic response, and simplified control loop compensation. The device operates at switching frequencies up to 500 kHz and features a 1A totem-pole output stage for driving power MOSFETs or IGBTs.

Detailed Technical Specifications

Key Features

• Current-mode control for superior line and load regulation
• Automatic feedforward compensation
• Programmable pulse-by-pulse current limiting
• Under-voltage lockout (UVLO) with hysteresis
• Soft-start capability
• Low startup current (1 mA typical)
• Totem-pole output stage with high sink/source current

Target Applications

• 5G base station power supplies
• Telecom and datacom DC-DC converters
• Industrial power systems
• Battery chargers
• LED lighting drivers
• Automotive dashboard power modules

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC3846Q. 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

UC3846Q 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。採用緊湊的 20-PLCC（9x9 mm）封裝，具有優異的線性和負載調節率、增強的動態響應以及簡化的控制環路補償。該器件支持高達 500 kHz 的開關頻率，並配備 1A 推挽輸出級，用於驅動功率 MOSFET 或 IGBT。

詳細技術參數

核心特性

• 電流模式控制，實現優異的線性和負載調節
• 自動前饋補償
• 可編程逐脈衝電流限制
• 帶滯後的欠壓鎖定 (UVLO)
• 軟啟動功能
• 低啟動電流（典型值 1 mA）
• 推挽輸出級，具有高灌/拉電流能力

典型應用場景

• 5G 基站電源
• 電信和數據通信 DC-DC 轉換器
• 工業電源系統
• 電池充電器
• LED 照明驅動器
• 汽車儀表板電源模塊

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC3846Q 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]