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Product Overview
The UCC28511DWR from Texas Instruments is a high-performance power factor correction (PFC) controller designed for medium-power AC-DC applications. It integrates a boost PFC stage with a PWM controller, enabling efficient and compact power supply designs. The device operates in continuous conduction mode (CCM) and provides a programmable switching frequency up to 250 kHz. With a wide input voltage range of 85 VAC to 265 VAC, it is suitable for universal offline power supplies. The 20-SOIC package ensures a small footprint for space-constrained designs.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
85 VAC – 265 VAC |
| Output Power |
Up to 250 W |
| Switching Frequency |
50 kHz – 250 kHz (programmable) |
| PFC Topology |
Boost, Continuous Conduction Mode (CCM) |
| PWM Topology |
Current Mode Control |
| Start-up Current |
50 µA (typical) |
| Operating Temperature |
-40°C to +125°C |
| Package |
20-SOIC |
| Protection Features |
Overvoltage, Overcurrent, Brownout, Thermal Shutdown |
Key Features
- Integrated PFC and PWM controller reduces external component count
- Programmable switching frequency optimizes efficiency and size
- Low start-up current (50 µA) enables efficient standby power
- Comprehensive protection: overvoltage, overcurrent, brownout, and thermal shutdown
- Wide input voltage range for universal AC input
- Small 20-SOIC package for compact designs
Target Applications
- AC-DC power supplies for 5G base stations (e.g., rectifier modules)
- Industrial power supplies for automation equipment
- LED lighting drivers for commercial and street lighting
- Home appliance power supplies (e.g., air conditioners, refrigerators)
- Telecom and networking equipment power supplies
Global Supply Chain & Wholesale Solutions
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UCC28511DWR. Our core advantages include:
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environmental and safety standards.
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and seals to ensure ESD protection and physical integrity.
產品概述
UCC28511DWR 是德州儀器(TI)推出的一款高性能功率因數校正(PFC)控制器,專為中等功率 AC-DC 應用設計。它整合了升壓 PFC 級和 PWM 控制器,實現高效緊湊的電源設計。該器件工作在連續導通模式(CCM),並提供高達 250 kHz 的可編程開關頻率。輸入電壓範圍為 85 VAC 至 265 VAC,適用於通用離線電源。20-SOIC 封裝確保了在空間受限設計中的小尺寸。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
85 VAC – 265 VAC |
| 輸出功率 |
最高 250 W |
| 開關頻率 |
50 kHz – 250 kHz(可編程) |
| PFC 拓撲 |
升壓,連續導通模式(CCM) |
| PWM 拓撲 |
電流模式控制 |
| 啟動電流 |
50 µA(典型值) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
20-SOIC |
| 保護功能 |
過壓、過流、欠壓、熱關斷 |
核心特性
- 集成 PFC 和 PWM 控制器,減少外部元件數量
- 可編程開關頻率,優化效率和尺寸
- 低啟動電流(50 µA),實現高效待機
- 全面保護:過壓、過流、欠壓和熱關斷
- 寬輸入電壓範圍,適用於通用交流輸入
- 小型 20-SOIC 封裝,適合緊湊設計
典型應用場景
- 5G 基站 AC-DC 電源(例如整流模塊)
- 工業自動化設備電源
- 商業和街道 LED 照明驅動器
- 家用電器電源(例如空調、冰箱)
- 電信和網絡設備電源
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