UCC3895DW
Compact SOIC package makes it ideal for space-constrained applications such as LED drivers and DC/DC convertersUCC3895DW
Compact SOIC package makes it ideal for space-constrained applications such as LED drivers and DC/DC converters
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製造商零件號 # : UCC3895DW
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包裝/封裝: SOIC (DW)-20
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製造商: Texas Instruments
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產品分類 : DC DC Switching Controllers
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UCC3895DW 數據表
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目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!
詳細說明
The UCC3895DW is a highly capable PWM controller IC that delivers a comprehensive set of features for power supply and motor control applications. Its wide operating voltage range, maximum switching frequency, and multiple outputs make it a versatile choice for various designs. With programmable soft-start and overcurrent protection, precise duty cycle control, and adjustable dead-time control, the UCC3895DW offers advanced functionality to enhance power conversion efficiency and system reliability. Its SOIC-16 package further enhances its appeal by enabling easy integration into electronic systems
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主要特徵
- Voltage-mode control option available
- Peak current-mode and average current-mode controls
- Duty-cycle adjustable from 0% to 100%
- Synchronized clock divider for external synchronization
應用
- Efficient power factor correction
- High-power handling capabilities
- Industrial-grade reliability
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Topology | Phase-shifted full bridge | Control mode | Current |
Duty cycle (max) (%) | 100 | Switching frequency (max) (kHz) | 1000 |
Features | Adjustable switching frequency, Current limiting, Error amplifier, Multi-topology, Soft start, Soft switching, Synchronization pin | UVLO thresholds on/off (V) | 11/9 |
Operating temperature range (°C) | 0 to 70 | Rating | Catalog |
Gate drive (typ) (A) | 0.1 | Vin (max) (V) | 16.5 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is UCC3895DW?
The UCC3895DW is a phase-shifted full-bridge PWM controller designed by Texas Instruments. It is used in high-performance power supply applications to regulate the operation of full-bridge power converters, providing efficient power management and control.
How Does UCC3895DW Work?
The UCC3895DW operates by generating the necessary control signals to drive the power switches in a full-bridge power converter. It utilizes a phase-shifted PWM control scheme to regulate the power flow and maximize efficiency. The controller features integrated high-voltage drivers and protection circuits for safe and reliable operation.
How Many Pins does UCC3895DW have and What are the Functions of the Pinout Configuration?
The UCC3895DW is housed in a 20-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VREF: Voltage reference pin.
- COMP, SS: Compensation and soft start pins for control loop stability.
- RT, CT: External timing components for oscillator frequency and dead time control.
- LO, HO: Low side and high side gate drive outputs, respectively.
- SD, FB: Shutdown and feedback control pins.
- CS, OCSET: Current sense and overcurrent protection pins.
What are the Pros and Cons of UCC3895DW?
Pros:
- High Performance: Designed for high-performance power supply applications with precise control.
- Integrated Features: Includes integrated high-voltage gate drivers and protection features for simplified system design.
- Efficiency: Utilizes phase-shifted PWM control to optimize power conversion efficiency.
- Flexible Control: Offers soft-start and current sense functions for flexible power regulation.
- Reliability: Designed for safe and reliable operation in demanding power converter applications.
Cons:
- Complexity: May require careful consideration of layout and external components for optimal performance.
- Cost: High-performance controllers like the UCC3895DW may have a higher cost compared to standard PWM controllers.
- Application Specific: Tailored for high-power applications, may not be suitable for low-power designs.
Are There Any Equivalents/Alternatives to UCC3895DW for Recommendation?
- The UCC28950 from Texas Instruments offers similar full-bridge PWM control with additional features for power supply applications.
- Alternatives to the UCC3895DW include the IR2153 from Infineon Technologies and the ML4823 from Microchip Technology.
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