UCC28C45DGKR TI PWM Controller | 8-VSSOP | 1MHz, 50% Duty Cycle

Product Overview

The UCC28C45DGKR is a high-performance current-mode PWM controller from Texas Instruments, designed for off-line and DC-to-DC power supply applications. It features a 1MHz oscillator, 50% maximum duty cycle, and operates from a supply voltage range of 7V to 15V. Housed in an 8-VSSOP package, this device offers low startup current (0.5mA typical) and a precision reference (2.5V ±1%). The UCC28C45DGKR is ideal for isolated and non-isolated power converters requiring high efficiency and compact size.

Detailed Technical Specifications

Key Features

• Current-mode control for improved transient response and simplified loop compensation
• 1MHz oscillator with programmable frequency via external resistor and capacitor
• Low startup current (0.5mA) for efficient power-up
• Precision 2.5V reference with ±1% accuracy
• Under-voltage lockout (UVLO) with hysteresis
• Pulse-by-pulse current limiting
• Soft-start capability
• Totem-pole output driver with ±1A peak drive current

Target Applications

• 5G base station power supplies (e.g., isolated DC-DC converters for remote radio units)
• Automotive dashboard power modules (e.g., 12V to 3.3V converters for infotainment systems)
• Industrial power adapters (e.g., 24V to 5V converters for PLCs)
• Telecom power systems (e.g., -48V to 12V converters for line cards)
• LED lighting drivers (e.g., constant current boost converters for street lights)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UCC28C45DGKR. 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

UCC28C45DGKR 是德州儀器 (TI) 推出的一款高性能電流模式 PWM 控制器，專為離線和 DC-DC 電源應用設計。它具有 1MHz 振盪器、50% 最大佔空比，並可在 7V 至 15V 的電源電壓範圍內工作。採用 8-VSSOP 封裝，該器件具有低啟動電流（典型值 0.5mA）和精密參考電壓（2.5V ±1%）。UCC28C45DGKR 非常適合需要高效率和小尺寸的隔離及非隔離電源轉換器。

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迴路補償
• 1MHz 振盪器，可通過外部電阻和電容編程頻率
• 低啟動電流（0.5mA），實現高效啟動
• 精密 2.5V 參考電壓，精度 ±1%
• 欠壓鎖定 (UVLO) 帶遲滯
• 逐脈衝電流限制
• 軟啟動功能
• 推挽輸出驅動器，峰值驅動電流 ±1A

典型應用場景

• 5G 基站電源（例如，用於遠端射頻單元的隔離 DC-DC 轉換器）
• 汽車儀表板電源模組（例如，用於資訊娛樂系統的 12V 轉 3.3V 轉換器）
• 工業電源適配器（例如，用於 PLC 的 24V 轉 5V 轉換器）
• 電信電源系統（例如，用於線路卡的 -48V 轉 12V 轉換器）
• LED 照明驅動器（例如，用於路燈的恆流升壓轉換器）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UCC28C45DGKR 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]