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Product Overview
The UC2841DW from Texas Instruments is a high-performance current-mode PWM controller designed for off-line and DC-to-DC converter applications. It features a wide input voltage range, low startup current, and high-frequency operation up to 500 kHz. The device is housed in an 18-pin SOIC package, offering a compact solution for power supply designs.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
8.5V to 14.5V |
| Output Current |
1A (peak) |
| Switching Frequency |
Up to 500 kHz |
| Operating Temperature |
-40°C to +85°C |
| Package |
18-SOIC |
| Topology |
Current Mode PWM |
| Duty Cycle |
0% to 100% |
| Undervoltage Lockout |
8.5V (start), 7.5V (stop) |
Key Features
- Current-mode control for improved transient response
- Low startup current (typically 0.5 mA)
- High-frequency operation up to 500 kHz
- Internal soft-start and shutdown control
- Programmable slope compensation
- Under-voltage lockout with hysteresis
- Totem-pole output driver for high current capability
Target Applications
- AC-DC power supplies for 5G base stations (e.g., Huawei 5G RRU)
- DC-DC converters for automotive dashboard displays
- Industrial power supplies for PLCs and motor drives
- Battery chargers for electric vehicles
- LED lighting drivers for streetlights
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
UC2841DW. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
UC2841DW 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。它具有寬輸入電壓範圍、低啟動電流和最高 500 kHz 的高頻操作能力。器件採用 18 引腳 SOIC 封裝,為電源設計提供緊湊的解決方案。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
8.5V 至 14.5V |
| 輸出電流 |
1A(峰值) |
| 開關頻率 |
最高 500 kHz |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
18-SOIC |
| 拓撲結構 |
電流模式 PWM |
| 佔空比 |
0% 至 100% |
| 欠壓鎖定 |
8.5V(啟動),7.5V(停止) |
核心特性
- 電流模式控制,改善瞬態響應
- 低啟動電流(典型值 0.5 mA)
- 高頻操作,最高 500 kHz
- 內部軟啟動和關斷控制
- 可編程斜率補償
- 帶滯回的欠壓鎖定
- 推挽輸出驅動器,提供高電流能力
典型應用場景
- 5G 基站(如華為 5G RRU)的 AC-DC 電源
- 汽車儀表盤顯示器的 DC-DC 轉換器
- 工業 PLC 和電機驅動的電源
- 電動汽車電池充電器
- 路燈 LED 照明驅動器
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 UC2841DW 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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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。
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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。
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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。
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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。
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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。
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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。
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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。
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